Post by Venturi on Jan 9, 2005 20:24:23 GMT -5
12- Normal code with ignition on and engine off. Indicates
no distributor reference pulse to ECM. Not stored in
memory.
13- Oxygen sensor or it circuit
14- Coolant Temperature Sensor circuit shorted.
15- Coolant Temperature Sensor circuit open.
21- Throttle Position Sensor (TPS) or its circuit.
22- Throttle Position Sensor circuit voltage low due
to grounded circuit or faulty adjustment of TPS.
23- Mixture Control (MC) Solenoid circuit open or
grounded.
24- Vehicle Speed Sensor (VSS) or its circuit
32- Barometric Pressure Sensor circuit voltage low.
34- Vacuum Sensor or Manifold Absolute Pressure (MAP) circuit.
35- Idle Speed Control (SC) Switch circuit shorted.
41- No distributor reference pulse to the ECM. Unlike code 12,
this will be stored in the ECM.
42- Electronic Spark Timing (EST) bypass circuit, or EST
circuit open or grounded.
43- Electronic Spark Control retard signal for too long
a time.
44- Lean exhaust
45- Rich exhaust
51- Prom (programmed read only memory) calibration unit faulty
or improperly installed in ECM.
53- Exhaust Gas Recirculation (EGR) valve vacuum sensor
has received improper vacuum signal.
54- Shorted Mixture Control Solenoid circuit and/or
faulty ECM.
55- Grounded Vref (terminal 21), high Oxygen Sensor circuit
sensor voltage, or faulty ECM.
no distributor reference pulse to ECM. Not stored in
memory.
13- Oxygen sensor or it circuit
14- Coolant Temperature Sensor circuit shorted.
15- Coolant Temperature Sensor circuit open.
21- Throttle Position Sensor (TPS) or its circuit.
22- Throttle Position Sensor circuit voltage low due
to grounded circuit or faulty adjustment of TPS.
23- Mixture Control (MC) Solenoid circuit open or
grounded.
24- Vehicle Speed Sensor (VSS) or its circuit
32- Barometric Pressure Sensor circuit voltage low.
34- Vacuum Sensor or Manifold Absolute Pressure (MAP) circuit.
35- Idle Speed Control (SC) Switch circuit shorted.
41- No distributor reference pulse to the ECM. Unlike code 12,
this will be stored in the ECM.
42- Electronic Spark Timing (EST) bypass circuit, or EST
circuit open or grounded.
43- Electronic Spark Control retard signal for too long
a time.
44- Lean exhaust
45- Rich exhaust
51- Prom (programmed read only memory) calibration unit faulty
or improperly installed in ECM.
53- Exhaust Gas Recirculation (EGR) valve vacuum sensor
has received improper vacuum signal.
54- Shorted Mixture Control Solenoid circuit and/or
faulty ECM.
55- Grounded Vref (terminal 21), high Oxygen Sensor circuit
sensor voltage, or faulty ECM.
