Section 9 (Engine Control System (3UZ-FE))
WARNING: This page is about a different car, the 2007 Lexus GS 430. 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
- Registration
- 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 P0020 Camshaft Position "A" Actuator Circuit (Bank 2)
- DTC P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1); DTC P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2); DTC P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2)
- DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A); DTC P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
- DTC P0031 Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032 Oxygen 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 P0051 Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 1); DTC P0052 Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 1); DTC P0057 Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2); DTC P0058 Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)
- DTC P0100 Mass Air Flow Circuit Malfunction; DTC P0102 Mass Air Flow Circuit Low; DTC P0103 Mass Air Flow Circuit High
- DTC P0101 Mass Air Flow Circuit Range / Performance Problem
- 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 P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit; 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 l Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem
- DTC P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
- DTC P0128 Thermostat Malfunction
- DTC P0130 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1); DTC P0132 Oxygen Sensor Circuit High Voltage Bank1 Sensor1; DTC P0150 Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 1); DTC P0152 Oxygen Sensor Circuit High Voltage Bank2 Sensor1; DTC P2195 Oxygen Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196 Oxygen Sensor Signal Stuck Rich (Bank 1 Sensor 1); DTC P2197 Oxygen Sensor Signal Stuck Lean (Bank 2 Sensor 1); DTC P2198 Oxygen Sensor Signal Stuck Rich (Bank 2 Sensor 1)
- DTC P0133 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1); DTC P0153 Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 1)
- Monitor Result
- DTC P0134 Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1); DTC P0154 Oxygen Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
- DTC P0136 Oxygen Sensor Circuit Malfunction (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 P0156 Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2); DTC P0158 Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2); DTC P0159 Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 2)
- DTC P0171 System Too Lean (Bank 1); DTC P0172 System Too Rich (Bank 1); DTC P0174 System Too Lean (Bank 2); DTC P0175 System Too Rich (Bank 2)
- DTC P0230 Fuel Pump Primary Circuit
- 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 P0305 Cylinder 5 Misfire Detected; DTC P0306 Cylinder 6 Misfire Detected; DTC P0307 Cylinder 7 Misfire Detected; DTC P0308 Cylinder 8 Misfire Detected;
- 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 P0332 Knock Sensor 2 Circuit Low Input (Bank 2); DTC P0333 Knock Sensor 2 Circuit High Input (Bank 2)
- DTC P0335 Crankshaft Position Sensor "A" Circuit; DTC P0339 Crankshaft Position Sensor "A" Circuit Intermittent
- DTC P0340 Camshaft Position Sensor Circuit Malfunction; DTC P0345 Camshaft Position Sensor "A" Circuit (Bank 2)
- 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 P0355 Ignition Coil "E" Primary / Secondary Circuit; DTC P0356 Ignition Coil "F" Primary / Secondary Circuit; DTC P0357 Ignition Coil "G" Primary / Secondary Circuit; DTC P0358 Ignition Coil "H" Primary / Secondary Circuit
- DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2)
- DTC P043E Evaporative Emission System Leak Detection Reference Orifice Low Flow; DTC P043F Evaporative Emission System Reference Orifice High Flow
- DTC P0441 Evaporative Emission Control System Incorrect Purge Flow
- 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 P0504 Brake Switch "A" / "B" Correlation; DTC P0571 Brake Switch "A" Circuit
- 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 Random Access Memory (RAM)
- DTC P0606 ECM / PCM Processor
- DTC P0607 Control Module Performance
- DTC P0617 Starter Relay Circuit High
- DTC P0630 VIN not Programmed or Mismatch - ECM / PCM
- DTC P0657 Actuator Supply Voltage Circuit / Open
- DTC P1340 Camshaft Position Sensor "A" (Bank 1 Sensor 2)
- 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 P2120 Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122 Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123 Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125 Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127 Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128 Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138 Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
- DTC P2121 Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
- 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 P2420 Evaporative Emission Pressure Switching Valve Stuck OFF
- DTC P2610 ECM / PCM Internal Engine Off Timer Performance
- DTC U0001 High Speed CAN Communication Bus
- EVAP System
- ECM Power Source Circuit
- VC Output Circuit
- Fuel Pump Control Circuit
- Wiring Diagram
- Cranking Holding Function Circuit
- IACV Control Circuit
- MIL Circuit
- Inspection Procedure
- Mass Air Flow Meter
- Camshaft Timing Oil Control Valve Assembly
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Engine Coolant Temperature Sensor
- Throttle Body
- Knock Sensor
- Integration Relay
- Fuel Pump Relay
- ECM
- Accelerator Pedal