Engine Control System (Diagnostic Codes & Symptom Tests) (Except CALIFORNIA)

• DTC/Circuit Diagnosis
  • DTC Index
  • DTC U0101: Can Comm Circuit
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC U1001: Can Comm Circuit
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0011: IVT Control
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0031, P0032: A/F Sensor 1 Heater
    • Description
      • System Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0037, P0038: Ho2S2 Heater
    • Description
      • System Description
      • Operation
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0075: IVT Control Solenoid Valve
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0101: MAF Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0102, P0103: MAF Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0111: IAT Sensor
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0112, P0113: IAT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0116: ECT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0117, P0118: ECT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0122, P0123: TP Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P0125: ECT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0127: IAT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0128: Thermostat Function
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0130: A/F Sensor 1
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
  • DTC P0131: A/F Sensor 1
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0132: A/F Sensor 1
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0137: Ho2S2
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0138: Ho2S2
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0139: Ho2S2
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P014C, P014D, P015A, P015B: A/F Sensor 1
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0171: Fuel Injection System Function
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0172: Fuel Injection System Function
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0181: FTT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0182, P0183: FTT Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0222, P0223: TP Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P0300, P0301, P0302, P0303, P0304: Misfire
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0327, P0328: KS
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0335: CKP Sensor (Pos)
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0340: CMP Sensor (Phase)
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0420: Three Way Catalyst Function
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
  • DTC P0441: EVAP Control System
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection (Drain filter)
  • DTC P0443: EVAP Canister Purge Volume Control Solenoid Valve
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0444, P0445: EVAP Canister Purge Volume Control Solenoid Valve
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0447: EVAP Canister Vent Control Valve
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0448: EVAP Canister Vent Control Valve
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0451: EVAP Control System Pressure Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0452: EVAP Control System Pressure Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0453: EVAP Control System Pressure Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0456: EVAP Control System
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P0460: Fuel Level Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0461: Fuel Level Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
  • DTC P0462, P0463: Fuel Level Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0500: VSS
    • Except For M/T Models
      • EXCEPT FOR M/T MODELS: Description
      • EXCEPT FOR M/T MODELS: DTC Logic
        • DTC Detection Logic
        • DTC Confirmation Procedure
      • EXCEPT FOR M/T MODELS: Diagnosis Procedure
    • M/T Models
      • M/T MODELS: Description
      • M/T MODELS: DTC Logic
        • DTC Detection Logic
        • DTC Confirmation Procedure
      • M/T MODELS: Component Function Check
      • M/T MODELS: Diagnosis Procedure
  • DTC P0506: ISC System
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0507: ISC System
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P050A, P050E: Cold Start Control
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0605: ECM
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0607: ECM
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0643: Sensor Power Supply
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P0850: PNP Switch
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
  • DTC P1148: Closed Loop Control
    • DTC Logic
      • DTC Detection Logic
  • DTC P117A: Air Fuel Ratio
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P1212: TCS Communication Line
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P1217: Engine Over Temperature
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
  • DTC P1225: TP Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Special Repair Requirement
  • DTC P1226: TP Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Special Repair Requirement
  • DTC P1550: Battery Current Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P1551, P1552: Battery Current Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P1553: Battery Current Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P1554: Battery Current Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • DTC P1564: ASCD Steering Switch
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
  • DTC P1572: ASCD Brake Switch
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (ASCD Brake Switch)
    • Component Inspection (ASCD Clutch Switch)
    • Component Inspection (Stop Lamp Switch)
  • DTC P1574: ASCD Vehicle Speed Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P1715: Input Speed Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P1805: Brake Switch
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection (Stop Lamp Switch)
  • DTC P2096, P2097: A/F Sensor 1
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P2100, P2103: Throttle Control Motor Relay
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
  • DTC P2101: Electric Throttle Control Function
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P2118: Throttle Control Motor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P2119: Electric Throttle Control Actuator
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Special Repair Requirement
  • DTC P2122, P2123: App Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P2127, P2128: App Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC P2135: TP Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • DTC 2138: App Sensor
    • Description
    • DTC Logic
      • DTC Detection Logic
      • DTC Confirmation Procedure
    • Diagnosis Procedure
    • Component Inspection
    • Special Repair Requirement
  • ASCD Brake Switch
    • Description
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection (ASCD Brake Switch)
    • Component Inspection (ASCD Clutch Switch)
  • ASCD Indicator
    • Description
    • Component Function Check
    • Diagnosis Procedure
  • Cooling Fan
    • Description
      • Notes
      • Cooling Fan Motor
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
      • Cooling Fan Motor
  • Electrical Load Signal
    • Description
    • Component Function Check
    • Diagnosis Procedure
  • Fuel Injector
    • Description
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • Fuel Pump
    • Description
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection
  • Ignition Signal
    • Description
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection (Ignition Coil with Power Transistor)
    • Component Inspection (Condenser)
  • Malfunction Indicator Lamp
    • Description
    • Component Function Check
    • Diagnosis Procedure
  • On Board Refueling Vapor Recovery (ORVR)
    • Description
    • Component Function Check
    • Diagnosis Procedure
    • Component Inspection (Refueling EVAP vapor cut valve)
    • Component Inspection (Drain filter)
  • Positive Crankcase Ventilation
    • Description
    • Component Inspection
  • Refrigerant Pressure Sensor
    • Description
    • Component Function Check
    • Diagnosis Procedure
• Ecu Diagnosis Information
  • ECM
    • Reference Value
      • Values On The Diagnosis Tool
      • Terminal Layout
      • Physical Values
    • Wiring Diagram - ENGINE CONTROL SYSTEM
    • Fail Safe
      • Non DTC Related Item
      • DTC Related Item
    • DTC Inspection Priority Chart
    • DTC Index
    • Test Value and Test Limit
• Symptom Diagnosis
  • Engine Control System Symptoms
    • Symptom Table
      • System - Basic Engine Control System
      • System - Engine Mechanical & Other
  • Normal Operating Condition
    • Description
      • Fuel Cut Control (At No Load And High Engine Speed)
• Precaution
  • Precautions
    • Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
      • Notes
      • Precautions When Using Power Tools (Air Or Electric) And Hammers
    • Precaution for Procedure without Cowl Top Cover
    • On Board Diagnosis (OBD) System of Engine and CVT
    • General Precautions
• Preparation
  • Preparation
    • Special Service Tools
    • Commercial Service Tools
• Periodic Maintenance
  • Fuel Pressure
    • Inspection
      • Fuel Pressure Release
        • With CONSULT
        • Without CONSULT
      • Fuel Pressure Check
  • EVAP Leak Check
    • Inspection
      • Notes
      • With Consult
      • Without Consult
• Service Data And Specifications (SDS)
  • Service Data And Specifications (SDS)
    • Idle Speed
    • Ignition Timing
    • Calculated Load Value
    • Mass Air Flow Sensor