Engine (Diagnostics) - 2.5L

• Basic Diagnostic Procedure
  • Engine
• Check List For Interview
  • Check List No. 1
  • Check List No. 2
• Inspection
  • Notes
  • (Battery)
  • Engine Grounding
• Precautions
• Descriptions
  • On-Board Diagnostics (OBD) System
  • Engine & Emission Control System
• Special Tools
• Electrical Component Location
  • Control Module
  • Sensor
  • Solenoid Valve, Emission Control System Parts & Ignition System Parts
• Technical Data
  • Engine Control Module (ECM) 1/0 Signal
    • Electrical Specification
  • Electrical Specification
• Technical Description
  • Data Link Connector
    • Note:
  • OBD-II General Scan Tool
    • Operation
      • How To Use OBD-II General Scan Tool
      • Mode $01 (Current Powertrain Diagnostic Data)
      • Mode $02 (Powertrain Freeze Frame Data)
      • Mode $03 (Emission-Related Powertrain DTC)
      • Mode $04 (Clear/Reset Emission-Related Diagnostic Information)
      • Mode $06
      • Mode $07
      • Mode $09
  • Vehicle Diagnostic Interface
    • Operation
      • How To Use Vehicle Diagnostic Interface
      • Read Diagnostic Trouble Code (DTC) For Engine (Normal Mode)
      • Read Diagnostic Trouble Code (DTC) For Engine (OBD Mode)
      • Read Current Data For Engine (Normal Mode)
      • Read Current Data For Engine (OBD Mode)
      • Read Freeze Frame Data For Engine (OBD Mode)
      • LED Operation Mode For Engine
      • VIN Registration
  • Read Diagnostic Trouble Code (DTC)
    • Operation
      • Vehicle Diagnostic Interface (NORMAL MODE)
      • Vehicle Diagnostic Interface (OBD MODE)
      • OBD-II General Scan Tool
  • Inspection Mode
    • Procedure
      • Notes
      • Preparation For The Inspection Mode
      • Vehicle Diagnostic Interface
      • OBD-II General Scan Tool
  • Drive Cycle
    • Procedure
      • Notes
      • Preparation For Drive Cycle
      • After Running 20 Minutes At 80 Km/H (50 MPH), Idle Engine For 1 Minute
      • Ten Minutes Idling
      • Drive According To The Following Drive Pattern
  • Clear Memory Mode
    • Operation
      • Vehicle Diagnostic Interface (NORMAL MODE)
      • Vehicle Diagnostic Interface (OBD MODE)
      • OBD-II General Scan Tool
  • Compulsory Valve Operation
    • Operation
• Fault Diagnosis, General
  • Malfunction Indicator Light
    • Procedure
    • Activation Of Malfunction Indicator Light
  • Diagnostics For Engine Starting Failure
    • Procedure
    • Starter Motor Circuit
      • Notes
      • Wiring Diagram:
        • Notes
        • Check Battery
        • Check Input Signal For Starter Motor
        • Check Ground Circuit Of Starter Motor
        • Check Harness Between Battery & Ignition Switch Connector
        • Check Ignition Switch
        • Check Transmission Type
        • Check Input Voltage Of Starter Interlock Relay
        • Check Starter Interlock Relay
        • Check Input Voltage Of Inhibitor Switch
        • Check Inhibitor Switch
        • Check Ground Circuit Of Clutch Switch
        • Check Clutch Switch
        • Check Clutch Switch Circuit
    • Check Power Supply & Ground Line Of Engine Control Module (ECM)
      • Notes
      • Wiring Diagram:
        • Notes
        • Check Main Relay
        • Check Ground Circuit Of ECM
        • Check Input Voltage Of ECM
        • Check Input Voltage Of Main Relay
    • Ignition Control System
      • Notes
      • Wiring Diagram:
        • Notes
        • Check Ignition System For Sparks
        • Check Power Supply Circuit For Ignition Coil & IGNITOR Assembly
        • Check Harness Of Ignition Coil & IGNITOR Assembly Ground Circuit
        • Check Ignition Coil & IGNITOR Assembly
        • Check Input Signal For Ignition Coil & IGNITOR Assembly
        • Check Harness Between ECM & Ignition Coil & IGNITOR Assembly Connector
        • Check Poor Contact
    • Fuel Pump Circuit
      • Notes
      • Wiring Diagram:
        • Notes
        • Check Operating Sound Of Fuel Pump
        • Check Ground Circuit Of Fuel Pump
        • Check Power Supply To Fuel Pump
        • Check Harness Between Fuel Pump & Fuel Pump Relay Connector
        • Check Fuel Pump Relay
        • Check Harness Between ECM & Fuel Pump Relay Connector
        • Check Poor Contact
    • Fuel Injector Circuit
      • Notes
      • Wiring Diagram:
        • Notes
        • Check Operation Of Each Fuel Injector
        • Check Power Supply To Each Fuel Injector
        • Check Harness Between ECM & Fuel Injector Connector
        • Check Each Fuel Injector
        • Check Poor Contact
• Fault Diagnosis, Fault Codes
  • Diagnostic Trouble Code (DTC)
    • DTC List
• Diagnostic Procedure With DTC
  • DTC P0030: Ho2S Heater Control Circuit (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Harness Between ECM & Front Oxygen (A/F) Sensor Connector
      • Check Harness Between A/F & Oxygen Sensor Relay & Front Oxygen (A/F) Sensor Connector
      • Check Front Oxygen (A/F) Sensor
      • Check Poor Contact
  • DTC P0031: Ho2S Heater Control Circuit Low (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram
      • Notes
      • Check Any Other DTC On Display
      • Check Power Supply To Front Oxygen (A/F) Sensor
      • Check Ground Circuit Of ECM
      • Check Current Data
      • Check Input Signal From ECM
      • Check Output Signal From ECM
      • Check Front Oxygen (A/F) Sensor
  • DTC P0032: Ho2S Heater Control Circuit High (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check Front Oxygen (A/F) Sensor Heater Current
  • DTC P0037: Ho2S Heater Control Circuit Low (Bank 1 Sensor 2)
    • DTC Detecting Condition:
    • Wiring Diagram
      • Notes
      • Check Ground Circuit Of ECM
      • Check Current Data
      • Check Output Signal From ECM
      • Check Power Supply To Rear Oxygen Sensor
      • Check Rear Oxygen Sensor
  • DTC P0038: Ho2S Heater Control Circuit High (Bank 1 Sensor 2)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Input Signal For ECM
      • Check Current Data
      • Check Poor Contact
  • DTC P0068: Manifold Pressure Sensor Range/Performance
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Air Intake System
      • Check Pressure Sensor
      • Check Throttle Position
  • DTC P0101: Mass Or Volume Air Flow Circuit Range/Performance
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0102: Mass Or Volume Air Flow Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Connect Vehicle Diagnostic Interface Or The OBD-II General Scan Tool & Read Data
      • Check Input Signal For ECM
      • Check Input Signal For ECM (Using Vehicle Diagnostic Interface)
      • Check Power Supply To Mass Air Flow Sensor
      • Check Harness Between ECM & Mass Air Flow Sensor Connector
      • Check Poor Contact
  • DTC P0103: Mass Or Volume Air Flow Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Connect Vehicle Diagnostic Interface Or The OBD-II General Scan Tool & Read Data
      • Check Harness Between ECM & Mass Air Flow Sensor Connector
  • DTC P0107: Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
    • DTC Detecting Condition:
    • Wiring Diagram
      • Notes
      • Check Current Data
      • Check Poor Contact
      • Check Output Signal For ECM
      • Check Input Signal For ECM
      • Check Input Signal For ECM (Using Vehicle Diagnostic Interface)
      • Check Harness Between Manifold Absolute Pressure Sensor & ECM Connector
  • DTC P0108: Manifold Absolute Pressure/Barometric Pressure Circuit High Input
    • DTC Detecting Condition:
    • Wiring Diagram
      • Notes
      • Check Current Data
      • Check Output Signal For ECM
      • Check Input Signal For ECM
      • Check Input Signal For ECM (Using Vehicle Diagnostic Interface)
      • Check Harness Between Manifold Absolute Pressure Sensor & ECM Connector
      • Check Poor Contact
  • DTC P0111: Intake Air Temperature Circuit Range/Performance
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0112: Intake Air Temperature Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Harness Between Intake Air Temperature Sensor & ECM Connector
  • DTC P0113: Intake Air Temperature Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Harness Between Intake Air Temperature Sensor & ECM Connector
  • DTC P0117: Engine Coolant Temperature Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Harness Between Engine Coolant Temperature Sensor & ECM Connector
  • DTC P0118: Engine Coolant Temperature Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Check Current Data
      • Check Harness Between Engine Coolant Temperature Sensor & ECM Connector
  • DTC P0122: Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Sensor Output
      • Check Poor Contact
      • Check Harness Between ECM & Electronic Throttle Control
      • Check Power Supply Of Electronic Throttle Control
      • Check Short Circuit Inside The ECM
  • DTC P0123: Throttle/Pedal Position Sensor/Switch "A" Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Check Sensor Output
      • Check Poor Contact
      • Check Harness Between ECM & Electronic Throttle Control
      • Check Sensor Output Power Supply
  • DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Thermostat
  • DTC P0126: Insufficient Coolant Temperature For Stable Operation
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Engine Coolant Temperature Sensor
  • DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
    • DTC Detecting Condition:
    • Trouble Symptom:
      • Notes
      • Check Vehicle Condition
      • Check Any Other DTC On Display
      • Check Engine Coolant
      • Check Radiator Fan
  • DTC P0131: O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0132: O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0133: O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Exhaust System
  • DTC P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Harness Between ECM & Front Oxygen (A/F) Sensor Connector
      • Check Poor Contact
  • DTC P0137: O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Rear Oxygen Sensor Data
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Exhaust System
  • DTC P0138: O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Rear Oxygen Sensor Data
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Exhaust System
  • DTC P0139: O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Rear Oxygen Sensor Data
  • DTC P0171: System Too Lean (Bank 1)
  • DTC P0172: System Too Rich (Bank 1)
    • DTC Detecting Condition:
    • Trouble Symptom:
      • Notes
      • Check Exhaust System
      • Check Air Intake System
      • Check Purge Control Solenoid Valve Or Pressure Control Solenoid Valve
      • Check Fuel Pressure
      • Check Engine Coolant Temperature Sensor
      • Check Pressure Sensor Signal
  • DTC P0181: Fuel Temperature Sensor "A" Circuit Range/Performance
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0182: Fuel Temperature Sensor "A" Circuit Low Input
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Current Data
  • DTC P0183: Fuel Temperature Sensor "A" Circuit High Input
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Harness Between Fuel Temperature Sensor & ECM Connector
  • DTC P0222: Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Electronic Throttle Control
      • Check Power Supply To Sensor
      • Check Short Of ECM
  • DTC P0223: Throttle/Pedal Position Sensor/Switch "B" Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Electronic Throttle Control
  • DTC P0301: Cylinder 1 Misfire Detected
  • DTC P0302: Cylinder 2 Misfire Detected
  • DTC P0303 Cylinder 3 Misfire Detected
  • DTC P0304: Cylinder 4 Misfire Detected
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Check Any Other DTC On Display
      • Check Output Signal From ECM
      • Check Harness Between Fuel Injector & ECM Connector.
      • Check Harness Between Fuel Injector & ECM Connector
      • Check Fuel Injector
      • Check Power Supply Line
      • Check Installation Of Camshaft Position Sensor/Crankshaft Position Sensor
      • Check Crank Sprocket
      • Check Installation Condition Of Timing Belt
      • Check Fuel Level
      • Check Status Of Malfunction Indicator Light
      • Check Cause Of Misfire Diagnosed
      • Check For Poor Contact
      • Check Air Intake System
      • Check Misfire Symptom
      • Check DTC On Display
      • Only One Cylinder
      • Group Of #1 & #2 Cylinders
      • Group Of #3 & #4 Cylinders
      • Group Of #1 & #3 Cylinders
      • Group Of #2 & #4 Cylinders
      • Cylinder At Random
  • DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 Or Single Sensor)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Harness Between Knock Sensor & ECM Connector
      • Check Knock Sensor
      • Check Condition Of Knock Sensor Installation
  • DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 Or Single Sensor)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Harness Between Knock Sensor & ECM Connector
      • Check Knock Sensor
      • Check Input Signal For ECM
  • DTC P0335: Crankshaft Position Sensor "A" Circuit
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Harness Between Crankshaft Position Sensor & ECM Connector
      • Check Condition Of Crankshaft Position Sensor
      • Check Crankshaft Position Sensor
  • DTC P0336: Crankshaft Position Sensor "A" Circuit Range/Performance
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Condition Of Crankshaft Position Sensor
      • Check Crank Sprocket
      • Check Installation Condition Of Timing Belt
  • DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1 Or Single Sensor)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Harness Between Camshaft Position Sensor & ECM Connector
      • Engine (Diagnostics) - 2.5L
      • Check Condition Of Camshaft Position Sensor
      • Check Camshaft Position Sensor
  • DTC P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 Or Single Sensor)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Harness Between Camshaft Position Sensor & ECM Connector
      • Check Condition Of Camshaft Position Sensor
      • Check Camshaft Position Sensor
      • Check Cam Sprocket
      • Check Installation Condition Of Timing Belt
  • DTC P0400: Exhaust Gas RECIRCULATION Flow
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Current Data
      • Check Power Supply To EGR Solenoid Valve
      • Check EGR Solenoid Valve
      • Output Signal From ECM
      • Check Harness Between EGR Solenoid Valve & ECM Connector
      • Check Poor Contact
  • DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Exhaust System
      • Check Catalytic Converter
  • DTC P0442: Evaporative Emission Control System Leak Detected (Small Leak)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Fuel Filler Cap
      • Check Fuel Filler Pipe Packing
      • Check Drain Valve
      • Check Purge Control Solenoid Valve
      • Check Pressure Control Solenoid Valve
      • Check Evaporative Emission Control System Line
      • Check Canister
      • Check Fuel Tank
      • Check Any Other Mechanical Trouble In Evaporative Emission Control System
  • DTC P0447: Evaporative Emission Control System Vent Control Circuit Open
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check For Poor Contact
      • Check Harness Between Drain Valve & ECM Connector
      • Check Drain Valve
      • Check Power Supply To Drain Valve
  • DTC P0448: Evaporative Emission Control System Vent Control Circuit Shorted
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Input Signal For ECM
      • Check For Poor Contact
      • Check Harness Between Drain Valve & ECM Connector
      • Check Drain Valve
  • DTC P0451: Evaporative Emission Control System Pressure Sensor Range/Performance
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0452: Evaporative Emission Control System Pressure Sensor Low Input
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Power Supply To Fuel Tank Pressure Sensor
      • Check Input Signal For ECM
      • Check Input Signal For ECM (Using Vehicle Diagnostic Interface)
      • Check Harness Between ECM & Coupling Connector In Rear Wiring Harness
      • Engine (Diagnostics) - 2.5L
      • Check Fuel Tank Cord
      • Check For Poor Contact
  • DTC P0453: Evaporative Emission Control System Pressure Sensor High Input
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Current Data
      • Check Power Supply To Fuel Tank Pressure Sensor
      • Check Input Signal For ECM.
      • CHECK INPUT SIGNAL FOR ECM (USING Vehicle Diagnostic Interface.)
      • Check Harness Between ECM & Coupling Connector In Rear Wiring Harness
      • Check Fuel Tank Cord
      • Check For Poor Contact
      • Check Harness Between ECM & Fuel Tank Pressure Sensor Connector
  • DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Engine (Diagnostics) - 2.5L
  • DTC P0457: Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0458: Evaporative Emission Control System Purge Control Valve Circuit Low
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0459: Evaporative Emission Control System Purge Control Valve Circuit High
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check Poor Contact
      • Check Harness Between Purge Control Solenoid Valve & ECM Connector
      • Check Purge Control Solenoid Valve
  • DTC P0461: Fuel Level Sensor Circuit Range/Performance
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0462: Fuel Level Sensor Circuit Low Input
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Speedometer & Tachometer Operation In Combination Meter
      • Check Input Signal For ECM
      • CHECK INPUT SIGNAL FOR ECM (USING Vehicle Diagnostic Interface.)
      • Check Input Voltage Of ECM
      • Check Harness Between ECM & Combination Meter
      • Check Fuel Tank Cord
      • Check Fuel Level Sensor
      • Check Fuel Sub Level Sensor
  • DTC P0463: Fuel Level Sensor Circuit High Input
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0464: Fuel Level Sensor Circuit Intermittent
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0483: Cooling Fan Rationality Check
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0502: Vehicle Speed Sensor Circuit Low Input
  • DTC P0503: Vehicle Speed Sensor Intermittent/Erratic/High
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Transmission Type
      • Check DTC P0720 On Display
      • Check Speedometer Operation In Combination Meter
      • Check Harness Between ECM & Combination Meter Connector
  • DTC P0506: Idle Control System Rpm Lower Than Expected
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0507: Idle Control System Rpm Higher Than Expected
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0512: Starter Request Circuit
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0519: Idle Control System Malfunction (Fail-Safe)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0600: Serial Communication Link
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P0604: Internal Control Module Random Access Memory (Ram) Error
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0605: Internal Control Module Read Only Memory (ROM) Error
  • DTC P0607: Control Module Performance
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0638: Throttle Actuator Control Range/Performance (Bank 1)
  • DTC P0691: Cooling Fan 1 Control Circuit Low
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0692: Cooling Fan 1 Control Circuit High
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0700: Transmission Control System (Mil Request)
  • DTC P0851: Neutral Switch Input Circuit Low (At Model)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P0851: Neutral Switch Input Circuit Low (M/T Model)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Input Signal For ECM
      • Check Poor Contact
      • Check Neutral Position Switch
      • Check Harness Between ECM & Neutral Position Switch Connector
  • DTC P0852: Neutral Switch Input Circuit High (A/T Model)
    • DTC Detecting Condition:
    • Trouble Symptom
    • Wiring Diagram
      • Notes
      • Check Any Other DTC On Display
      • Check Input Signal For ECM
      • Check Poor Contact
      • Check Harness Between ECM & Inhibitor Switch Connector
      • Check Inhibitor Switch Ground Line
      • Check Inhibitor Switch
      • Check Selector Cable Connection
  • DTC P0852: Neutral Switch Input Circuit High (M/T Model)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Input Signal For ECM
      • Check For Poor Contact
      • Check Neutral Switch
      • Check Harness Between ECM & Neutral Switch Connector
  • DTC P1152: O2 Sensor Circuit Range/Performance (Low) (Bank 1; Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P1153: O2 Sensor Circuit Range/Performance (High) (Bank 1; Sensor 1)
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal For ECM
  • DTC P1160: Return Spring Failure
  • DTC P1400: Fuel Tank Pressure Control Solenoid Valve Circuit Low
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check For Poor Contact
      • Check Harness Between Fuel Tank Pressure Control Solenoid Valve & ECM Connector
      • Check Fuel Tank Pressure Control Solenoid Valve
      • Check Power Supply To Fuel Tank Pressure Control Solenoid Valve
  • DTC P1420: Fuel Tank Pressure Control Sol. Valve Circuit High
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Input Signal For ECM
      • Check For Poor Contact
      • Check Harness Between Fuel Tank Pressure Control Solenoid Valve & ECM Connector
      • Check Fuel Tank Pressure Control Solenoid Valve
  • DTC P1443: Vent Control Solenoid Valve Function Problem
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P1446: Fuel Tank Sensor Control Valve Circuit Low
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check For Poor Contact
      • Check Harness Between Fuel Tank Sensor Control Valve & ECM Connector
      • Check Fuel Tank Sensor Control Valve
      • Check Power Supply To Fuel Tank Sensor Control Valve
  • DTC P1447: Fuel Tank Sensor Control Valve Circuit High
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Output Signal From ECM
      • Check For Poor Contact
      • Check Harness Between Fuel Tank Sensor Control Valve & ECM Connector
      • Check Fuel Tank Sensor Control Valve
  • DTC P1492: EGR Solenoid Valve Signal #1 Circuit Malfunction (Low Input)
  • DTC P1493: EGR Solenoid Valve Signal #1 Circuit Malfunction (High Input)
  • DTC P1494: EGR Solenoid Valve Signal #2 Circuit Malfunction (Low Input)
  • DTC P1495: EGR Solenoid Valve Signal #2 Circuit Malfunction (High Input)
  • DTC P1496: EGR Solenoid Valve Signal #3 Circuit Malfunction (Low Input)
  • DTC P1497: EGR Solenoid Valve Signal #3 Circuit Malfunction (High Input)
  • DTC P1498: EGR Solenoid Valve Signal #4 Circuit Malfunction (Low Input)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P1499: EGR Solenoid Valve Signal #4 Circuit Malfunction (High Input)
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P1518: Starter Switch Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P1560: Back-Up Voltage Circuit Malfunction
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P2096: Post Catalyst Fuel Trim System Too Lean Bank 1
    • DTC Detecting Condition:
    • Wiring Diagram:
      • Notes
      • Check Any Other DTC On Display
      • Check Rear Oxygen Sensor Data
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Exhaust System
      • Check Air Intake System
      • Check Purge Control Solenoid Valve Or Pressure Control Solenoid Valve
      • Check Fuel Pressure
      • Check Engine Coolant Temperature Sensor
      • Check Pressure Sensor Signal
  • DTC P2097: Post Catalyst Fuel Trim System Too Rich Bank 1
    • DTC Detecting Condition:
    • Wiring Diagram
      • Notes
      • Check Any Other DTC On Display
      • Check Rear Oxygen Sensor Data
      • Check Harness Between ECM & Rear Oxygen Sensor Connector
      • Check Harness Between Rear Oxygen Sensor & ECM Connector
      • Check Exhaust System
      • Check Air Intake System
      • Check Purge Control Solenoid Valve Or Pressure Control Solenoid Valve
      • Check Fuel Pressure
      • Check Engine Coolant Temperature Sensor
      • Check Pressure Sensor Signal
  • DTC P2101: Throttle Actuator Control Motor Circuit Range/Performance
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Electronic Throttle Control Relay
      • Check Power Supply To Electronic Throttle Control Relay
      • Check Harness Between ECM & Electronic Throttle Control
      • Check Harness Between ECM & Electronic Throttle Control Relay
      • Check Output Voltage Of Sensor
      • Check Poor Contact
      • Check The Harness Between ECM & Electronic Throttle Control
      • Check Power Supply To Sensor
      • Check Short Of ECM
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Electronic Throttle Control Motor
      • Check Electronic Throttle Control Motor Harness
      • Check Electronic Throttle Control Ground Circuit
      • Check Electronic Throttle Control
  • DTC P2102: Throttle Actuator Control Motor Circuit Low
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
  • DTC P2103: Throttle Actuator Control Motor Circuit High
    • DTC Detecting Condition:
    • Wiring Diagram:
  • DTC P2109: Throttle/Pedal Position Sensor A Minimum Stop Performance
  • DTC P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Accelerator Position Sensor
      • Check Accelerator Position Sensor Power Supply
      • Check Accelerator Position Sensor
  • DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Accelerator Position Sensor
  • DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Accelerator Position Sensor
      • Check Power Supply To Accelerator Position Sensor
      • Check Accelerator Position Sensor
  • DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High Input
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Accelerator Position Sensor
  • DTC P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Rationality
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram:
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Electronic Throttle Control
      • Check Power Supply To Sensor
      • Check Short Of ECM
      • Check Electronic Throttle Control Harness
  • DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Rationality
    • DTC Detecting Condition:
    • Trouble Symptom:
    • Wiring Diagram
      • Notes
      • Check Output Voltage Of Accelerator Position Sensor
      • Check Poor Contact In Connectors
      • Check Harness Between ECM & Accelerator Position Sensor
      • Check Power Supply To Accelerator Position Sensor
      • Check Accelerator Position Sensor
  • DTC P2227: Barometric Pressure Too Low
    • DTC Detecting Condition:
  • DTC P2228: Atmospheric Pressure Sensor Circuit Malfunction (Low Input)
    • DTC Detecting Condition:
  • DTC P2229: Atmospheric Pressure Sensor Circuit Malfunction (High Input)
    • DTC Detecting Condition: