SFI SYSTEM (w/o Electronic Throttle Control System) DIAGNOSTIC TROUBLE CODE CHART

Tech Tips

Parameters listed in the chart may not be exactly the same as your readings due to factors such as the type of instrument.

If a DTC is displayed during the DTC check in check mode, check the circuit for the DTC listed in the table below. For details of each DTC, refer to the "See page" under the respective "DTC No." in this chart.

SFI System
DTC Code Detection Item Trouble Area MIL Memory See page
P0010 Camshaft Position "A" Actuator Circuit (Bank 1)

- Open or short in camshaft timing oil control valve circuit

- Camshaft timing oil control valve (OCV)

- ECM

Comes on DTC stored

Click here

P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)

- Valve timing

- Camshaft timing oil control valve (OCV)

- Camshaft timing sprocket assembly

- Camshaft timing oil control valve (OCV) circuit

- ECM

Comes on DTC stored

Click here

P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1)

- Valve timing

- Camshaft timing oil control valve (OCV)

- Camshaft timing sprocket assembly

- Camshaft timing oil control valve (OCV) circuit

- ECM

Comes on DTC stored

Click here

P0106 Manifold Absolute Pressure / Barometric Pressure Circuit Range / Performance Problem

- Air induction system

- Manifold absolute pressure sensor

Comes on DTC stored

Click here

P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input

- Open or short in manifold absolute pressure sensor circuit

- Manifold absolute pressure sensor

- ECM

Comes on DTC stored

Click here

P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input

- Open or short in manifold absolute pressure sensor circuit

- Manifold absolute pressure sensor

- ECM

Comes on DTC stored

Click here

P0112 Intake Air Temperature Circuit Low Input

- Open or short in intake air temperature sensor circuit

- Short to power source circuit

- Intake air temperature sensor (built into manifold absolute pressure sensor)

- ECM

Comes on DTC stored

Click here

P0113 Intake Air Temperature Circuit High Input

- Short in intake air temperature sensor circuit

- Intake air temperature sensor (built into manifold absolute pressure sensor)

- ECM

Comes on DTC stored

Click here

P0117 Engine Coolant Temperature Circuit Low Input

- Open in engine coolant temperature sensor circuit

- Short to power source circuit

- Engine coolant temperature sensor

- ECM

Comes on DTC stored

Click here

P0118 Engine Coolant Temperature Circuit High Input

- Short in engine coolant temperature sensor circuit

- Engine coolant temperature sensor

- ECM

Comes on DTC stored

Click here

P0122 Throttle Position Sensor Circuit Low Input

- Throttle position sensor (built into throttle body assembly)

- Short in VTA circuit and E2 circuit

- Open in VC circuit

- ECM

Comes on DTC stored

Click here

P0123 Throttle Position Sensor Circuit High Input

- Throttle position sensor (built into throttle body assembly)

- Open in E2 circuit

- VC and VTA circuit are short-circuited

- ECM

Comes on DTC stored

Click here

P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control

- Engine coolant temperature sensor

- Thermostat

- Cooling system

Comes on DTC stored

Click here

P0130 Oxygen (A/F) Sensor Circuit (Bank 1 Sensor 1)

- Short to GND in heated oxygen sensor (sensor 1) circuit

- Heated oxygen sensor (sensor 1)

- ECM

Comes on DTC stored

Click here

P0132 Oxygen Sensor Circuit High Voltage Bank1 Sensor1

- Short in signal output circuit and power source circuit of heated oxygen sensor (sensor 1)

- Heated oxygen sensor (sensor 1)

- ECM

Comes on DTC stored

Click here

P0133 Oxygen (A/F) Sensor Circuit Slow Response (Bank 1 Sensor 1)

- Open or short in heated oxygen sensor circuit

- Heated oxygen sensor (sensor 1)

- Fuel pressure

- Injector

- Gas leakage from exhaust system

- ECM

Comes on DTC stored

Click here

P0134 Oxygen (A/F) Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

- Open or Short in heated oxygen sensor (sensor 1) circuit

- Heated oxygen sensor (sensor 1)

- ECM

Comes on DTC stored

Click here

P0135 Oxygen (A/F) Sensor Heater Circuit (Bank 1 Sensor 1)

- Open or short in heated oxygen sensor (sensor 1) heater circuit

- Heated oxygen sensor heater (sensor 1)

- EFI main relay

- ECM

Comes on DTC stored

Click here

P0136 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)

- Short to GND in heated oxygen sensor (sensor 2) circuit

- Heated oxygen sensor (sensor 2)

- Heated oxygen sensor heater (sensor 2)

- EFI main relay

Comes on DTC stored

Click here

P0138 Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)

- Short in signal output circuit and power source circuit of heated oxygen sensor (sensor 2)

- Heated oxygen sensor (sensor 2)

- ECM

Comes on DTC stored

Click here

P0139 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)

- Open or short in heated oxygen sensor (sensor 2)

- Heated oxygen sensor (sensor 2)

- Fuel pressure

- Injector

- Gas leakage from exhaust system

- ECM

Comes on DTC stored

Click here

P0140 Heated Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

- Open in heated oxygen sensor (sensor 2) circuit

- Heated oxygen sensor (sensor 2)

- Heated oxygen sensor heater (sensor 2)

- EFI main relay

Comes on DTC stored

Click here

P0141 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

- Open in heated oxygen sensor (sensor 2) heater circuit

- Heated oxygen sensor heater (sensor 2)

- EFI main relay

- ECM

Comes on DTC stored

Click here

P0171 System Too Lean (Bank 1)

- Injector blockage

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Fuel pressure

- Gas leakage from exhaust system

- Open or short in heated oxygen sensor (sensor 1) circuit

- Heated oxygen sensor (sensor 1)

- ECM

Comes on DTC stored

Click here

P0172 System Too Rich (Bank 1)

- Injector blockage

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Fuel pressure

- Gas leakage from exhaust system

- Open or short in heated oxygen sensor (sensor 1) circuit

- Heated oxygen sensor (sensor 1)

- ECM

Comes on DTC stored

Click here

P0261 Cylinder 1 Injector Circuit Low

- Open or short to GND in injector circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0262 Cylinder 1 Injector Circuit High

- Short in injector power source circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0264 Cylinder 2 Injector Circuit Low

- Open or short to GND in injector circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0265 Cylinder 2 Injector Circuit High

- Short in injector power source circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0267 Cylinder 3 Injector Circuit Low

- Open or short to GND in injector circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0268 Cylinder 3 Injector Circuit High

- Short in injector power source circuit

- Injector

- ECM

Comes on DTC stored

Click here

P0300 Random / Multiple Cylinder Misfire Detected

- Open or short in engine wire harness

- Connector connection

- Ignition system

- Injector

- Fuel pressure

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Compression pressure

- Valve clearance

- Valve timing

- PCV hose

- Air induction system

- ECM

Comes on DTC stored

Click here

P0301 Cylinder 1 Misfire Detected

- Open or short in engine wire harness

- Connector connection

- Ignition system

- Injector

- Fuel pressure

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Compression pressure

- Valve clearance

- Valve timing

- PCV hose

- Air induction system

- ECM

Comes on DTC stored

Click here

P0302 Cylinder 2 Misfire Detected

- Open or short in engine wire harness

- Connector connection

- Ignition system

- Injector

- Fuel pressure

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Compression pressure

- Valve clearance

- Valve timing

- PCV hose

- Air induction system

- ECM

Comes on DTC stored

Click here

P0303 Cylinder 3 Misfire Detected

- Open or short in engine wire harness

- Connector connection

- Ignition system

- Injector

- Fuel pressure

- Manifold absolute pressure sensor

- Engine coolant temperature sensor

- Compression pressure

- Valve clearance

- Valve timing

- PCV hose

- Air induction system

- ECM

Comes on DTC stored

Click here

P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)

- Open or short in knock sensor circuit

- Knock sensor

- Knock sensor looseness

- ECM

Comes on DTC stored

Click here

P0335 Crankshaft Position Sensor "A" Circuit

- Open or short in crankshaft position sensor circuit

- Crankshaft position sensor

- Crankshaft (sensor plate)

- ECM

Comes on DTC stored

Click here

P0336 Crankshaft Position Sensor "A" Circuit Range / Performance

- Open or short in crankshaft position sensor circuit

- Crankshaft position sensor

- Crankshaft (sensor plate)

- ECM

Comes on DTC stored

Click here

P0340 Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)

- Mechanical system malfunction (jumped teeth of timing chain, chain stretched)

- ECM

Comes on DTC stored

Click here

P0341 Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor)

- Open or short in camshaft position sensor circuit

- Camshaft position sensor

- Intake camshaft

- ECM

Comes on DTC stored

Click here

P0342 Camshaft Position Sensor Circuit Low Input

- Short in camshaft position sensor circuit

- Camshaft position sensor

- Intake camshaft

- ECM

Comes on DTC stored

Click here

P0343 Camshaft Position Sensor Circuit High Input

- Open in camshaft position sensor circuit

- Short in power source circuit

- Camshaft position sensor

- Intake camshaft

- ECM

Comes on DTC stored

Click here

P0420 Catalyst System Efficiency Below Threshold (Bank 1)

- Gas leakage from exhaust system

- Heated oxygen sensor (sensor 1)

- Heated oxygen sensor (sensor 2)

- TWC

Comes on DTC stored

Click here

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

- Open or short in purge VSV circuit

- Purge VSV

- ECM

Comes on DTC stored

Click here

P0501 Vehicle Speed Sensor Range / Performance

- Open or short in speed sensor circuit

- Speed sensor

- Skid control ECU

- ECM

Comes on DTC stored

Click here

P0511 Idle Air Control Circuit

- Open or short in ISC valve circuit

- ISC valve

- ECM

Comes on DTC stored

Click here

P0561 System Voltage Unstable - ECM Comes on DTC stored

Click here

P0562 System Voltage Low

- Open or short in backup power source circuit

- Tired battery

- Electrical over work

- Generator

- ECM

Comes on DTC stored

Click here

P0563 System Voltage High

- Generator

- Battery (if 24 V battery is installed, DTC P0563 is output)

- ECM

Comes on DTC stored

Click here

P0603 Internal Control Module Keep Alive Memory (KAM) Error - ECM Comes on DTC stored

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P0605 Internal Control Module Read Only Memory (ROM) Error - ECM Comes on DTC stored

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P0704 Clutch Switch Input Circuit Malfunction

- Open or short in clutch switch circuit

- Clutch switch assembly

- ECM

Does not come on DTC stored

Click here