Trouble Code Definition
ECM/PCM TROUBLE CODE DEFINITION
| Code No. |
Circuit Affected |
| 13 |
Open Oxygen (O2) Sensor Circuit |
| 14 |
Coolant Temperature Sensor, Signal Voltage Low |
| 15 |
Coolant Temperature Sens, Signal Voltage High |
| 16 |
Missing 2X Reference Ckt |
| 21 |
Throttle Position Sensor, Signal Voltage High |
| 22 |
Throttle Position Sensor, Signal Voltage Low |
| 23 |
MAT Sensor Signal Voltage High |
| 24 |
Vehicle Speed Sensor (VSS) |
| 25 |
MAT Sensor Signal Voltage Low |
| 26 |
Quad-Driver Error, "L" Body |
| 26 |
Quad-Driver Error, "N" Body
r |
| 33 |
MAP Sensor, Signal Voltage High |
| 34 |
MAP Sensor, Signal Voltage Low |
| 35 |
IAC Idle Speed Error, W/O Tech 1 |
| 35 |
IAC Idle Speed Error, Using Tech I |
| 41 |
1X Reference Ckt |
| 42 |
EST Ckt Open Or Grounded |
| 43 |
ESC Error, W/O ESC Module |
| 44 |
Lean Exhaust Indication |
| 45 |
Rich Exhaust Indication |
| 51 |
Faulty PROM/MEM-CAL |
| 52 |
Faulty CAL-PAK |
| 53 |
System Overvoltage |
| 55 |
ECM Error |
| 65 |
Injector Current Low |
| 66 |
A/C Pressure Sensor |
NOTE:
Use trouble code charts only if SERVICE ENGINE SOON light is illuminated (indicating a current problem exists). Exceptions are Code 13, 15, 24, 44 and 45 charts, which may be used to help diagnose intermittent codes. Anytime control module-related Codes 51, 52 or 55 are displayed with another code, start with 50-series code, and then proceed to lower numbered codes.