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9. (K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K857) 5 Volt Supply circuit and Is the resistance above 100 ohms? Yes >> Go to 10 No >> Repair the (K857) 5 Volt Supply circuit for a short to the (K900) Sensor Ground circuit. Perform the PCM Verification Test Ver. 1 (Refer to 9 - 10. (K857) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (K857) 5 Volt Supply circuit between the Is the resistance below 5.0 ohms? Yes >> Go to 16 No >> Repair the (K857) 5 Volt Supply circuit for an open circuit or high resistance. Perform the PCM Verification Test Ver. 1 (Refer to 9 - 11. (K1) MAP SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K1) MAP Signal circuit in the MAP Sensor Is there any voltage present? Yes >> Repair the (K1) MAP Signal circuit for a short to voltage. Perform the PCM Verification Test Ver. 1 (Refer to 9 - No >> Go to 12 PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 67 |