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P0562-BATTERY VOLTAGE LOW - ESM For a complete wiring diagram Refer to Section 8W Theory of Operation The Shift Lever Assembly (SLA) controller (Electronic Shift Module - ESM) monitors ignition voltage. The DTC will • When Monitored: • Set Condition: Possible Causes VEHICLE CHARGING SYSTEM (F902) IGNITION UNLOCK RUN START CIRCUIT (Z911) GROUND CIRCUIT SHIFT LEVER ASSEMBLY Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - Diagnostic Test 1. CHECK FOR ENGINE CHARGING SYSTEM DTCS With the scan tool, read Engine DTCs. Are there any Engine Charging System DTCs present? Yes >> Refer to 9 - ENGINE ELECTRICAL DIAGNOSTICS and perform the appropriate symptom. Perform NAG1 TRANSMISSION VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/ No >> Go To 3 2. CHECK (F902) IGNITION UNLOCK RUN START CIRCUIT Turn the ignition off to the lock position. Disconnect the Shift Lever Assembly harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F902) Ignition NOTE: The test light must illuminate brightly. Compare the bright- Does the test light illuminate brightly? Yes >> Go To 6 No >> Repair the (F902) Ignition Unlock Run Start circuit for high resistance. Perform NAG1 TRANSMISSION VERIFICATION TEST. 21 - 222 AUTOMATIC TRANSMISSION NAG1 - SHIFTER DIAGNOSTICS LX |