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• When Monitored: • Set Condition: Possible Causes (D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE (D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE (D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND (D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND (D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT ANTILOCK BRAKE MODULE POWERTRAIN CONTROL MODULE (PCM or ECM) STEERING ANGLE SENSOR BODY CONTROL MODULE Diagnostic Test 1. VERIFY CAN C BUS COMMUNICATION Turn the ignition on. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. NOTE: A red X will be next to the module that is not communicating or not installed on the vehicle, indi- Does the scan tool communicate with any module on the CAN C Bus circuit? Yes >> The conditions that caused this symptom are not present at this time. Using the wiring diagram/sche- matic as a guide, inspect the wiring and connectors. No >> Go To 2 2. CHECK THE D65 CAN C (+) AND (D64) CAN C (-) CIRCUITS FOR A SHORT TO VOLTAGE Turn the ignition on. Measure the voltage of the (D65) CAN C Bus (+) circuit and the (D64) Is the voltage steadily above 4.0 volts? Yes >> Go To 3 No >> Go To 4 8E - 124 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC KJ |