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(P0123) APPS SIGNAL 1 CIRCUIT HIGH (CONTINUED) 7. APP SENSOR SIGNAL 1 CIRCUIT SHORT TO VOLTAGE Turn the ignition off. Disconnect the PCM C4 harness connector. Note: Check connectors — Clean/repair as necessary. Measure the voltage of the APP Sensor Signal 1 circuit at the APP Is the voltage below 1.0 volt? Yes >> Go To 8 No >> Repair the APP Sensor Signal 1 circuit for a short to volt- age. Perform POWERTRAIN VERIFICATION TEST - VER 2. 8. APP SENSOR SIGNAL 1 CIRCUIT SHORT TO APP SENSOR 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Measure the resistance of the APP Sensor Signal 1 circuit and the Is the resistance above 100 kohms? Yes >> Go To 9 No >> Repair the APP Sensor Signal 1 circuit for a short to the APP Sensor 5-Volt Supply circuit. Perform POWERTRAIN VERIFICATION TEST - VER 2. 9. PCM Note: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal If there are no possible causes remaining, view repair. Repair Replace and program the Powertrain Control Module. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- Perform POWERTRAIN VERIFICATION TEST - VER 2. ZH ENGINE - ELECTRICAL DIAGNOSTICS 9 - 109 |