|
|
• When Monitored: • Set Condition: Possible Causes (V37) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE (V37) S/C SWITCH NO.1 SIGNAL CIRCUIT OPEN BETWEEN PCM AND CLOCKSPRING (K900) SENSOR GROUND CIRCUIT OPEN BETWEEN PCM AND CLOCKSPRING (K900) SENSOR GROUND CIRCUIT OPEN BETWEEN CLOCKSPRING AND S/C SWITCH (V37) S/C SWITCH NO.1 SIGNAL CIRCUIT OPEN BETWEEN CLOCKSPRING AND S/C SWITCH CLOCKSPRING SPEED CONTROL SWITCH PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. SPEED CONTROL SWITCH VOLTAGE HIGH NOTE: Do not press any of the Speed Control Switch buttons. With a scan tool, read the Speed Control voltage. Is the Speed Control voltage above 4.8 volts? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 2. SPEED CONTROL SWITCHES Turn the ignition off. Remove the Speed Control Switches from the steering wheel. Measure the resistance across each Speed Control Switch. Monitor the ohmmeter while pressing each function button on each switch. Resume/Accel - 15.4 kohms Cancel - 1.24 kohms Coast - 2.94 kohms On/Off - 0.47 kohms Set - 5.49 kohms Does the function on the Speed Control Switches have the correct resistance value? Yes >> Go To 3 No >> Replace the Speed Control Switch that had the incorrect resistance value. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 454 ENGINE ELECTRICAL DIAGNOSTICS KJ |