| 11 |
IGN REFERENCE SIGNAL |
No distributor reference signal pickup during cranking. |
| 12 |
NUMBER OF KEY-ONS SINCE LAST FAULT or SINCE FAULTS WERE RELEASED |
Direct battery input to SBEC was disconnected within last 50 ignition key-ons |
| 13 |
MAP PNEUMATIC SIGNAL SLOW CHANGE IN MAP SIGNAL NO CHANGE IN MAP FROM START TO RUN or MAP PNEUMATIC CHANGE |
No difference in MAP sensor signal is detected. No difference is detected between MAP reading & stored barometric pressure reading. |
| 14 |
MAP VOLTAGE TOO LOW MAP VOLTAGE TOO HIGH |
MAP sensor input less than minimum acceptable voltage. MAP sensor input more than maximum acceptable voltage. |
| 15 |
VEHICLE SPEED SIGNAL |
No distance sensor signal detected with road load conditions. |
| 17 |
LOW ENGINE TEMP |
Coolant temp stays below normal operating temp during vehicle operation |
| 21 |
O2 SENSOR SIGNAL O2 SENSOR SHORTED HI |
No rich or lean signal is detected from O2 sensor input. Oxygen sensor input voltage maintained above normal operating range. |
| 22 |
COOLANT VOLTAGE LOW. COOLANT VOLTAGE HIGH |
Coolant temp sensor input below minimum acceptable voltage. Coolant temp sensor input above maximum acceptable voltage. |
| 23 |
T/B TEMP VOLTAGE LOW. T/B TEMP VOLTAGE HI. CHARGE TEMP VOLT LOW. CHARGE TEMP VOLT HI |
Throttle body temp sensor input below minimum acceptable voltage. Throttle body temp sensor input above maximum acceptable voltage. Charge temp sensor input below minimum acceptable voltage. Charge temp sensor input above maximum acceptable voltage. |
| 24 |
TPS VOLTAGE LOW. TPS VOLTAGE HIGH |
TPS sensor output less than minimum acceptable voltage. TPS sensor output more than maximum acceptable voltage. |
| 25 |
AIS MOTOR CIRCUITS |
Shorted condition detected in one or more Auto Idle Speed control circuits. |
| 26 |
INJECTOR NO. 1 PEAK CURRENT NOT REACHED. INJECTOR NO. 2 PEAK CURRENT NOT REACHED. INJECTOR NO. 3 PEAK CURRENT NOT REACHED. INJECTOR NO. 4 PEAK CURRENT NOT REACHED |
High Resistance Condition Detected in Injector No. 1 Injector Bank Circuit. High Resistance Condition Detected in Injector No. 2 Injector Bank Circuit. High Resistance Condition Detected in Injector No. 3 Injector Bank Circuit. High Resistance Condition Detected in Injector No. 4 Injector Bank Circuit |
| 27 |
INJ 1 CONTROL CIRCUIT. INJ 2 CONTROL CIRCUIT. INJ 3 CONTROL CIRCUIT. INJ 4 CONTROL CIRCUIT |
INJ 1 injector bank output driver stage does not respond correctly to SBEC control signal. INJ 2 injector bank output driver stage does not respond correctly to SBEC control signal. INJ 3 injector bank output driver stage does not respond correctly to SBEC control signal. INJ 4 injector bank output driver stage does not respond correctly to SBEC control signal. |
| 31 |
PURGE SOLENOID CIRCUIT |
Open or shorted condition is detected in purge solenoid ckt |
| 32 |
EGR SOLENOID CIRCUIT EGR SYSTEM FAILURE |
Open or shorted condition is detected in EGR solenoid ckt. SBEC did not detect required air/fuel change during diagnostic test |
| 33 |
A/C CLUTCH RELAY CIRCUIT |
Open or shorted condition detected in A/C clutch relay ckt. |
| 34 |
S/C SERVO SOLENOIDS |
Open or shorted condition detected in speed control vacuum or vent solenoid circuits. |
| 35 |
RADIATOR FAN RELAY |
Open or shorted condition detected in radiator fan relay ckt. |
| 36 |
WASTEGATE SOLENOID VNT SOLENOID #3 CKT |
Open or shorted condition detected in turbocharger wastegate control Solenoid ckt. Open or shorted condition detected in VNT solenoid No. 3 ckt. |
| 37 |
PTU SOLENOID CIRCUIT |
Open or shorted condition detected in torque converter part throttle unlock solenoid circuit. |
| 41
- If Code Is Displayed, Charging System Malfunction Exists |
ALTERNATOR FIELD CKT |
Open or shorted condition detected in alternator field ckt. |
| 42 |
ASD RELAY CIRCUIT. NO ASD RELAY VOLTAGE SENSED AT SBEC. Z1 VOLTAGE SENSE |
Open or shorted condition detected in ASD relay circuit. No ASD Relay voltage sensed when ASD relay is energized. No Battery voltage sensed when ASD relay is energized. |
| 43 |
IGN COIL NO. 1 PRIMARY CKT. IGN COIL NO. 2 PRIMARY CKT. IGN COIL NO. 3 PRIMARY CKT |
Peak Primary Circuit Current Not Achieved With maximum Dwell Time. Peak Primary Circuit Current Not Achieved With maximum Dwell Time. Peak Primary Circuit Current Not Achieved With maximum Dwell Time |
| 44
- If Code Is Displayed, Charging System Malfunction Exists |
BATTERY TEMP SENSOR OUT OF LIMITS |
Internal Controller Failure With Battery Temperature Sensor Out of Range |
| 45 |
BOOST LIMIT EXCEEDED |
MAP reading above overboost limit detected during engine operation. |
| 46
- If Code Is Displayed, Charging System Malfunction Exists |
BATTERY VOLTAGE HIGH |
Battery voltage sense input more than target charging voltage during engine operation. |
| 47
- If Code Is Displayed, Charging System Malfunction Exists |
CHARGING OUTPUT LOW |
Battery voltage sense input less than target charging voltage During engine operation and no significant change in voltage detected during active test of alternator output. |
| 51 |
LEAN F/A CONDITION or 02 SIGNAL STAYS BELOW CENTER |
O2 sensor input indicates lean air/fuel ratio during engine operation. |
| 52 |
RICH F/A CONDITION or 02 SIGNAL STAYS ABOVE CENTER |
O2 sensor input indicates rich air/fuel ratio during engine operation |
| 53 |
INTERNAL SELF-TEST INTERNAL SBEC FAILURE or CONTROLLER FAILURE SPI COMMUNICATIONS |
SBEC detects internal failure. No Internal Communication Between Coprocessors |
| 54 |
NO SYNC PICK-UP SIGNAL |
No high data rate detected during engine rotation. |
| 55 |
|
Completion of fault code display by check engine light. |
| 61 |
BARO READ SOLENOID |
Open or shorted condition detected in baro read solenoid ckt. |
| 62 |
EMR MILES NOT STORED |
Unsuccessful attempt to update EMR mileage in SBEC EEPROM (trucks only). |
| 63 |
EEPROM WRITE DENIED SBEC FAILURE |
Unsuccessful attempt to write to an EEPROM location by SBEC. |
| 64 |
VNT SOLENOID #1 CKT |
Open or shorted condition detected in VNT solenoid No. 1 circuit. |
| 65 |
VNT SOLENOID #2 CKT See Appropriate Alternators & Regulators Article in ELECTRICAL Section. |
Open or shorted condition detected in VNT solenoid No. 2 circuit. |
| 67 |
VNT A-SIDE CONTROL |
MAP reading above boost goal for an extended time period. |
| 77 |
SPEED CONTROL POWER RELAY CIRCUIT Vehicles |
Open or Short Detected in the Speed Control Power Relay Circuit |