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REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test the system for normal operation. G549822t216 : CHECK THE APP1 SENSOR TO ECM RETURN CIRCUIT FOR 1. Measure the resistance between: CR14, harness side EC66, harness side Pin 03
Pin C1
Is the resistance less than 10 ohms? -> Yes Suspect : - ECM connector - ECM
-> No REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test the system for normal operation. G549822t217 : CHECK THE APP1 SUPPLY AND RETURN CIRCUITS FOR 1. Key off. 2. Disconnect the ECM connector, EC66. 3. Key on, engine off. 4. Measure the resistance between: CR14, harness side CR14, harness side Pin 05
Pin 03
Is the resistance greater than 100 Kohms? -> Yes GO to Pinpoint Test G549822t218.
-> No REPAIR the short circuit. For additional information, refer to the wiring diagrams. Clear any DTCs, test the system for normal operation. G549822t218 : CHECK WHETHER THE SHORT CIRCUIT TO GROUND IS IN 1. Measure the resistance between: |