1. Start engine (if possible). Move transmission shift lever through all gear positions, ending in Park. Turn A/C switch on, then off (if equipped).
2. Turn engine off. Without starting engine again, turn ignition on, off, on, off, and on. Record 2-digit fault codes as displayed by the flashing CHECK ENGINE light.
3. For example, Code 23 is displayed as flash, flash, 4-second pause, flash, flash, flash. After a slightly longer pause, other codes stored are displayed in numerical order.
4. Once CHECK ENGINE light begins to flash fault codes, it cannot be stopped. If you lose count, it will be necessary to start over. Code 55 indicates end of fault code display.
5. Refer to FAULT CODES table to translate fault code number to a system fault description.
ERROR CODE LIST
11 NO REFERENCE SIGNAL DURING CRANKING
No Reference Signal From Crankshaft Position Sensor Picked Up During Cranking.
15 NO VEHICLE SPEED SIGNAL
No Distance Sensor Signal Detected With Road Load Conditions.
22 COOLANT SENSOR VOLTAGE TOO LOW
Coolant Temp. Sensor Input Less Than Minimum Acceptable Voltage.
22 COOLANT SENSOR VOLTAGE TOO HIGH
Coolant Temp. Sensor Input More Than Maximum Acceptable Voltage.
23 CHARGE TEMP VOLT LOW
Charge Temp. Sensor Input Less Than Minimum Acceptable Voltage.
23 CHARGE TEMP VOLT HI Charge Temp. Sensor Input More Than Maximum Acceptable Voltage.
24 TPS VOLTAGE LOW TPS Sensor Input Less Than Minimum Acceptable Voltage.
24 TPS VOLTAGE HIGH TPS Sensor Input More Than Maximum Acceptable Voltage.
33 A/C CLUTCH RELAY CKT
Open Or Shorted Condition Detected In A/C Clutch Relay Circuit.
34 S/C SOLENOIDS CKT Open Or Shorted Condition Detected In Speed Control (S/C)
Vacuum Or Vent Solenoid Circuits.
41 ALTERNATOR FIELD
An Open Or Shorted Condition Detected In Alternator Field Ckt.
42 ASD RELAY CIRCUIT An Open Or Shorted Condition Detected In ASD Relay Circuit
42 NO ASD RELAYVOLTAGE SENSED AT SBEC
No ASD Relay Voltage Sensed When ASD Relay Is Energized.
45 OVERDRIVE SOLENOID An Open Or Shorted Condition Detected In Overdrive Solenoid Ckt.
46 CHARGING VOLTAGE TOO HIGH
Battery Voltage Sense Input More Than Target Charging Voltage During Engine Operation.
47 CHARGING VOLTAGE TOO 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.
62 EMR MILES NOT STORED
Unsuccessful Attempt To Update EMR Mileage In SBEC EEPROMs
63 SBEC FAILURE EEPROM WRITE DENIED
Unsuccessful Attempt To Write To An EEPROM Location By SBEC.
CHECK ENGINE Light Diagnostic Mode
1. Start engine (if possible). Move transmission shift lever through all gear positions, ending in Park. Turn A/C switch on, then off (if equipped).
2. Turn engine off. Without starting engine again, turn ignition on, off, on, off, and on. Record 2-digit fault codes as displayed by the flashing CHECK ENGINE light.
3. For example, Code 23 is displayed as flash, flash, 4-second pause, flash, flash, flash. After a slightly longer pause, other codes stored are displayed in numerical order.
4. Once CHECK ENGINE light begins to flash fault codes, it cannot be stopped. If you lose count, it will be necessary to start over. Code 55 indicates end of fault code display.
5. Refer to FAULT CODES table to translate fault code number to a system fault description.
ERROR CODE LIST
11 NO REFERENCE SIGNAL DURING CRANKING
No Reference Signal From Crankshaft Position Sensor Picked Up During Cranking.
15 NO VEHICLE SPEED SIGNAL
No Distance Sensor Signal Detected With Road Load Conditions.
22 COOLANT SENSOR VOLTAGE TOO LOW
Coolant Temp. Sensor Input Less Than Minimum Acceptable Voltage.
22 COOLANT SENSOR VOLTAGE TOO HIGH
Coolant Temp. Sensor Input More Than Maximum Acceptable Voltage.
23 CHARGE TEMP VOLT LOW
Charge Temp. Sensor Input Less Than Minimum Acceptable Voltage.
23 CHARGE TEMP VOLT HI Charge Temp. Sensor Input More Than Maximum Acceptable Voltage.
24 TPS VOLTAGE LOW TPS Sensor Input Less Than Minimum Acceptable Voltage.
24 TPS VOLTAGE HIGH TPS Sensor Input More Than Maximum Acceptable Voltage.
33 A/C CLUTCH RELAY CKT
Open Or Shorted Condition Detected In A/C Clutch Relay Circuit.
34 S/C SOLENOIDS CKT Open Or Shorted Condition Detected In Speed Control (S/C)
Vacuum Or Vent Solenoid Circuits.
41 ALTERNATOR FIELD
An Open Or Shorted Condition Detected In Alternator Field Ckt.
42 ASD RELAY CIRCUIT An Open Or Shorted Condition Detected In ASD Relay Circuit
42 NO ASD RELAYVOLTAGE SENSED AT SBEC
No ASD Relay Voltage Sensed When ASD Relay Is Energized.
45 OVERDRIVE SOLENOID An Open Or Shorted Condition Detected In Overdrive Solenoid Ckt.
46 CHARGING VOLTAGE TOO HIGH
Battery Voltage Sense Input More Than Target Charging Voltage During Engine Operation.
47 CHARGING VOLTAGE TOO 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.
62 EMR MILES NOT STORED
Unsuccessful Attempt To Update EMR Mileage In SBEC EEPROMs
63 SBEC FAILURE EEPROM WRITE DENIED
Unsuccessful Attempt To Write To An EEPROM Location By SBEC.