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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

Code Description
12 System Normal
13  Oxygen Sensor Circuit
14  Coolant Temperature Sensor (CTS), Low Temp Indicated
15  Coolant Temperature Sensor (CTS), High Temp Indicated
21  Throttle Position Sensor Circuit, Signal Voltage High
22  Throttle Position Sensor Circuit, Signal Voltage Low
24  Speed Sensor Circuit Check
33  MAF Sensor Circuit, Signal Voltage High
34  MAF Sensor Circuit, Signal Voltage Low
41 (1) No Ignition Signal
42  Crank Angle Sensor (CAS) Circuit Check
51 (2) EGR System Circuit Check
52 (2) Fuel Injector Check
(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) Applicable to California models only.