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6E–387 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS DTC P1650 – Quad Driver Module (QDM) Fault
Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 Check the fuse for the driver circuit that was shown as Was the fuse blown? — Go to Step 5 Go to Step 6 3 1. Check for a short to ground between the fuse and the affected component. 2. Replace the fuse after making any necessary repairs. Is the action complete? — Verify repair — 4 Disconnect the PCM connector for the affected driver Is there any damage to the PCM pin or connector? — Go to Step 5 Go to Step 6 5 Repair the damaged pin or terminal. Is the action complete? — Verify repair — 6 Were either of the lamp circuits for “Check Engine” or — Go to Step 7 Go to Step 13 7 1. Leave the PCM connector for the lamp driver circuit disconnected. 2. Ignition “ON”. connector for the affected lamp driver circuit. Was the voltage equal to the specified value? B+ Go to Step 15 Go to Step 8 8 1. Ignition “ON”. lamp circuit. Was battery voltage available at the fuse? — Go to Step 10 Go to Step 9 9 Repair the open circuit between the ignition switch and Is the action complete? — Verify repair — 10 1. Ignition “OFF”. driver terminal. 3. Connect an ohmmeter between a good ground and the PCM connector for the affected driver. Did the ohmmeter indicate continuity? — Go to Step 11 Go to Step 12 11 Repair the short to ground between the affected Is the action complete? — Verify repair — 12 Repair the open circuit between the fuse and the PCM Is the action complete? — Verify repair — |