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• When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC (K42) KS SIGNAL CIRCUIT SHORTED TO VOLTAGE (K42) KS SIGNAL CIRCUIT SHORTED TO GROUND (K42) KS SIGNAL CIRCUIT SHORTED TO (K942) KS RETURN (K42) KS SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE (K942) KS RETURN CIRCUIT OPEN OR HIGH RESISTANCE KNOCK SENSOR POWERTRAIN CONTROL MODULE (PCM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. DTC IS ACTIVE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands Is the status Active for this DTC? Yes >> Go to 2 No >> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) 2. (K42) KS SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Knock Sensor connector. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K42) KS Signal circuit in the Knock Sensor Is there any voltage present? Yes >> Repair the (K42) KS Signal circuit for a short to voltage. Perform the PCM Verification Test Ver. 1 (Refer to 9 - No >> Go to 3 PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 291 |