Error Codes

DTC 11 - No Crank reference Signal At PCM - Test FC-11A Using DRB-II, select SENSOR TESTS. Start engine. Using DRB-II, read engine RPM. If DRB-II does not show a RPM reading, go to step 3). If DRB-II shows a RPM reading, condition required to set fault is not present at this time. NO CRANK REFERENCE SIGNAL AT PCM fault sets if no signal is present during load conditions with vehicle speed more than 10 MPH. Possible causes are open or shorted 8-volt su

DTC 15 - No Vehicle Speed Sensor Signal Test FC-2A Raise and support vehicle so that wheels are allowed to spin. Start engine. Using DRB-II, read Vehicle Speed Sensor (VSS) signal. Put transmission in any forward gear. If vehicle speed sensor signal is NOT greater than zero MPH, go to step 4). If vehicle speed sensor signal is greater than zero MPH, condition required to set fault code is not present at this time. NO VEHICLE S

DTC 22 - ECT Sensor Voltage Too High - TEST FC-7A Using DRB-II, read Engine Coolant Temperature (ECT) sensor voltage. If voltage is greater than 4.5 volts, go to step 3). If voltage is 4.5 volts or less, wiggle ECT sensor connectors and harness while monitoring DRB-II. If voltage changed when harness and connectors were wiggled, repair harness or connector where wiggling caused voltage change. Perform TEST VER-1. If voltage did not change w

DTC 22 - ECT Sensor Voltage Too Low - TEST FC-8A Using DRB-II, read Engine Coolant Temperature (ECT) sensor voltage. If voltage is less than .5 volt, go to step 3). If voltage is .5 volt or more, wiggle CTS connectors and harness while monitoring DRB-II. If voltage changed when harness and connectors were wiggled, repair harness or connector where wiggling caused voltage change. Perform TEST VER-1. If voltage did not change wh

DTC 23 - Intake Air Temperature Sensor Voltage High Test FC-3A Using DRB-II, read Intake Air Temperature (IAT) sensor voltage. If voltage is greater than 4.5 volts, go to step 4). If voltage is 4.5 volts or less, wiggle IAT sensor harness while observing DRB-II display. If voltage changed while harness was wiggled, repair harness where wiggling caused change. Perform TEST VER-1. If wiggling harness did not cause a vo

DTC 23 - Intake Air Temperature Sensor Voltage Low - TEST FC-4A Using DRB-II, read Intake Air Temperature (IAT) sensor voltage. If IAT sensor voltage is less than .5 volt, go to step 4). If voltage is .5 volt or more, wiggle IAT sensor harness while observing DRB-II display. If voltage changed while harness was wiggled, repair harness where wiggling caused change. Perform TEST VER-1. If wiggling harness did not cause a voltage

DTC 24 - Throttle Position Sensor Voltage High - TEST FC-5A Using DRB-II, read Throttle Position Sensor (TPS) voltage. If TPS voltage is greater than 4.5 volts, go to step 4). If TPS voltage is 4.5 volts or less, monitor TPS voltage on DRB-II while opening and closing throttle. If voltage change is not smooth, replace TPS. Perform TEST VER-1. If voltage change is smooth, wiggle TPS connectors and harness while monitoring DRB-I

DTC 24 - Throttle Position Sensor Voltage Low - TEST FC-6A Using DRB-II, read Throttle Position Sensor (TPS) voltage. If TPS voltage is less than .2 volt, go to step 5). If TPS voltage is .2 volt or more, monitor TPS voltage on DRB-II while opening and closing throttle. If voltage change is not smooth, replace TPS. Perform TEST VER-1. If voltage change is smooth, wiggle TPS connectors and harness while monitoring DRB-II. If vo

DTC 33 - A/C Clutch Relay Control Circuit - Test FC-9A Using DRB-II, erase fault codes and actuate A/C clutch relay. If A/C clutch relay is not clicking, go to step 4). If A/C clutch relay is clicking, condition required to set fault is not present at this time. A/C CLUTCH RELAY CIRCUIT fault sets if relay control circuit at PCM connector terminal No. 34 does not reflect proper state. Possible causes are relay coil open or shorted, control circuit ope

DTC 42 - Auto Shutdown Relay Control Circuit - Test FC-12A Using DRB-II, erase fault codes and actuate ASD relay. ASD relay only supplies battery voltage to alternator field. If relay is not clicking, go to step 3). If relay is clicking, condition required to set fault is not present at this time. AUTO SHUTDOWN RELAY CONTROL CIRCUIT fault sets if ASD and fuel pump relay control circuit is not in its proper state when monitored by PCM during cranking.

DTC 42 - No Auto Shutdown Relay Voltage Sense At PCM - Test FC-13A If AUTO SHUTDOWN RELAY CONTROL CIRCUIT fault is also present, perform TEST FC-12A. If AUTO SHUTDOWN RELAY CONTROL CIRCUIT fault is not present, erase fault codes using DRB-II. Start engine. Read fault codes. If NO ASD RELAY VOLT SENSE AT PCM fault did not return, conditions required to set fault are not present at this time. Perform TEST VER-1. If NO ASD RELAY VOLT SENSE AT PCM fault r

DTC 45 - Transmission Overdrive Solenoid Circuit - Test FC-10A Using DRB-II, erase fault codes and actuate overdrive solenoid.Wait 10 seconds. Using DRB-II, read codes. If overdrive solenoid control circuit fault returns, go to step 3). If overdrive solenoid control circuit fault does not return, wiggle wiring harness between transmission connector and PCM with actuator test still running. Using DRB-II, read faults. If overdrive solenoid control circu

DTC 62 - PCM Failure SRI Miles Not Stored & PCM Failure EEPROM Write Denied - Test FC-14A Turn ignition on. Using DRB-II, perform SRI memory test. If DRB-II displays WRITE FAILURE, replace PCM. Perform TEST VER-1. If DRB-II displays WRITE REFUSED, go to step 2). If DRB-II displays SRI MILEAGE INVALID, update mileage and retest SRI memory. Perform TEST VER-1. If none of these messages are displayed, compare SRI mileage stored with mileage on odomet

DTC 63 - PCM Failure SRI Miles Not Stored & PCM Failure EEPROM Write Denied - Test FC-14A Turn ignition on. Using DRB-II, perform SRI memory test. If DRB-II displays WRITE FAILURE, replace PCM. Perform TEST VER-1. If DRB-II displays WRITE REFUSED, go to step 2). If DRB-II displays SRI MILEAGE INVALID, update mileage and retest SRI memory. Perform TEST VER-1. If none of these messages are displayed, compare SRI mileage stored with mileage on odomet