Section 22 (Engine Control System)
WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
- SFI System
- Precaution
- Definition Of Terms
- Parts Location
- System Diagram
- How To Proceed With Troubleshooting
- Check For Intermittent Problems
- Basic Inspection
- Checking Monitor Status
- Readiness Monitor Drive Pattern
- Problem Symptoms Table
- Terminals Of ECM
- Diagnosis System
- DTC Check / Clear
- Freeze Frame Data
- Check Mode Procedure
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- DTC P0010 Camshaft Position "A" Actuator Circuit (Bank 1)
- DTC P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)
- DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
- DTC P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
- DTC P0037 Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038 Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0141 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
- DTC P0101 Mass Air Flow Circuit Range / Performance Problem
- DTC P0102 Mass or Volume Air Flow Circuit Low Input; DTC P0103 Mass or Volume Air Flow Circuit High Input
- DTC P0110 Intake Air Temperature Circuit; DTC P0112 Intake Air Temperature Circuit Low Input; DTC P0113 Intake Air Temperature Circuit High Input
- DTC P0111 Intake Air Temperature Sensor Gradient Too High
- DTC P0115 Engine Coolant Temperature Circuit; DTC P0117 Engine Coolant Temperature Circuit Low Input; DTC P0118 Engine Coolant Temperature Circuit High Input
- DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem
- DTC P011B Engine Coolant Temperature / Intake Air Temperature Correlation
- DTC P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220 Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222 Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223 Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135 Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
- DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem
- DTC P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
- DTC P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
- DTC P0136 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137 Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138 Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
- DTC P0171 System Too Lean (Fuel Trim); DTC P0172 System Too Rich (Bank 1)
- DTC P0300 Random / Multiple Cylinder Misfire Detected; 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 P0325 Knock Sensor 1 Circuit; DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor); DTC P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
- DTC P0335 Crankshaft Position Sensor "A" Circuit
- DTC P0340 Camshaft Position Sensor Circuit Malfunction; DTC P0341 Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor)
- DTC P0351 Ignition Coil "A" Primary / Secondary Circuit; DTC P0352 Ignition Coil "B" Primary/Secondary Circuit; DTC P0353 Ignition Coil "C" Primary / Secondary Circuit; DTC P0354 Ignition Coil "D" Primary / Secondary Circuit
- DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1)
- DTC P043E Evaporative Emission System Reference Orifice Clog Up; DTC P043F Evaporative Emission System Reference Orifice High Flow; DTC P2401 Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402 Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419 Evaporative Emission Pressure Switching Valve Stuck ON
- DTC P0441 Evaporative Emission Control System Incorrect Purge Flow
- DTC P0446 Evaporative Emission Control System Vent Control Circuit
- DTC P0450 Evaporative Emission Control System Pressure Sensor Malfunction; DTC P0451 Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452 Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453 Evaporative Emission Control System Pressure Sensor / Switch High Input
- DTC P0455 Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456 Evaporative Emission Control System Leak Detected (Very Small Leak)
- DTC P0505 Idle Control System Malfunction
- DTC P050A Cold Start Idle Air Control System Performance
- DTC P050B Cold Start Ignition Timing Performance
- DTC P0560 System Voltage
- DTC P0604 Internal Control Module Random Access Memory (RAM) Error
- DTC P0606 ECM / PCM Processor
- DTC P0607 Control Module Performance
- DTC P0657 Actuator Supply Voltage Circuit / Open
- DTC P1115 Coolant Temperature Sensor Circuit for Coolant Heat Storage System; DTC P1117 Coolant Temperature Sensor Circuit Low for Coolant Heat Storage; DTC P1118 Coolant Temperature Sensor Circuit High for Coolant Heat Storage
- DTC P1116 Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage
- DTC P1120 Coolant Flow Control Valve Position Sensor Circuit; DTC P1122 Coolant Flow Control Valve Position Sensor Circuit Low; DTC P1123 Coolant Flow Control Valve Position Sensor Circuit High
- DTC P1121 Coolant Flow Control Valve Position Sensor Circuit Stuck
- DTC P1150 Coolant Path Clog of Coolant Heat Storage System
- DTC P1151 Coolant Heat Storage Tank
- DTC P1450 Fuel Tank Pressure Sensor; DTC P1451 Fuel Tank Pressure Sensor Range/Performance; DTC P1452 Fuel Tank Pressure Sensor Low Input; DTC P1453 Fuel Tank Pressure Sensor High Input
- DTC P1455 Vapor Reducing Fuel Tank System Malfunction
- DTC P2102 Throttle Actuator Control Motor Circuit Low; DTC P2103 Throttle Actuator Control Motor Circuit High
- DTC P2111 Throttle Actuator Control System - Stuck Open; DTC P2112 Throttle Actuator Control System - Stuck Closed
- DTC P2118 Throttle Actuator Control Motor Current Range / Performance
- DTC P2119 Throttle Actuator Control Throttle Body Range / Performance
- DTC P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196 Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
- DTC P2237 Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1); DTC P2238 Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239 Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2252 Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253 Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
- DTC P2420 Evaporative Emission Pressure Switching Valve Stuck OFF
- DTC P2601 Coolant Pump Control Circuit Range / Performance
- DTC P2610 ECM / PCM Internal Engine Off Timer Performance
- DTC P2A00 A/F Sensor Circuit Slow Response (Bank 1 Sensor 1)
- DTC P3190 Poor Engine Power; DTC P3191 Engine does not Start; DTC P3193 Fuel Run Out
- DTC U0293 Lost Communication with HV ECU
- ECM Power Source Circuit
- VC Output Circuit
- Fuel Pump Control Circuit
- MIL Circuit
- Camshaft Timing Oil Control Valve Assembly
- Throttle Body
- ECM
- Mass Air Flow Meter
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Engine Coolant Temperature Sensor
- Knock Sensor
- EFI Relay
- Circuit Opening Relay