|
|
Content .. 1249 1250 1251 1252 ..
Possible Causes (K51) ASD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE (K51) ASD CONTROL CIRCUIT OPEN (K51) ASD CONTROL CIRCUIT SHORTED TO GROUND (A209) PCM FUSED B+ CIRCUIT (F202) (F902) PCM FUSED IGNITION SWITCH OUTPUT CIRCUITS (Z904) PCM GROUND CIRCUITS (D65) CAN C BUS (+) CIRCUIT OPEN (D64) CAN C BUS (-) CIRCUIT OPEN PCM Diagnostic Test 1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. NOTE: The scan tool and cable must be operating properly for the results of this test to be valid. NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active NOTE: Check the FCM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool display a red X next to the module? Yes >> Go To 2 No >> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con- 2. ASD CONTROL CIRCUIT OPERATION NOTE: Before continuing check the following for proper operation, repair as necessary. Remove the ASD Relay from the IPM. Using a 12-volt test light connected to battery voltage, probe the (K51) ASD Control circuit in the IPM. Monitor the test light. Turn the ignition on. NOTE: The test light will illuminate for approximately 3 seconds and then turn off, this is considered normal Does the test light illuminate brightly? Yes >> Go To 9 No >> Go To 3 9 - 1028 ENGINE ELECTRICAL DIAGNOSTICS LX |