Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

Code

Description

System Normal

Oxygen Sensor Circuit

Coolant (Water) Temp. Sensor (WTS), Low Temp. Indicated

Coolant (Water) Temp. Sensor (WTS), High Temp. Indicated

Throttle Position Sensor Circuit, Signal Voltage High

Throttle Position Sensor Circuit, Voltage Low

Air Temp. Sensor (ATS) Circuit, Low Temp. Indicated

Vehicle Speed Sensor

Air Temp Sensor (ATS) Circuit, High Temp Indicated

Pressure Sensor (PS) Circuit, Signal Voltage High

Pressure Sensor (PS) Circuit, Signal Voltage Low

41 ⁽¹⁾

No Ignition Signal

Crank Angle Sensor

44 ⁽²⁾

Idle Switch Circuit Open Or Misadjusted

45 ⁽²⁾

Idle Switch Circuit Shorted Or Misadjusted

51 ⁽³⁾

EGR System Circuit Check

53 ⁽²⁾⁽³⁾

ECM Ground Circuit Check

54 ⁽²⁾⁽⁴⁾

5Th Gear Switch Circuit Grounded

71 ⁽⁵⁾

Test Switch Circuit

⁽¹⁾	Code 41 is not stored in ECM memory. To check code when engine fails to start, crank engine, and then, with ignition still on, install fuse in diagnostic terminal of fuse block.

⁽²⁾	When code occurs, ECM will not activate CHECK ENGINE light while engine is running. When problem is fixed, memory of defective area will be erased from ECM.

⁽³⁾	Applicable to California models only.

⁽⁴⁾	Not applicable to California models.

⁽⁵⁾	Circuit is grounded for 5 seconds when driving at least 25 MPH.