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6E2–250 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS DTC P1640 –Output Driver Module (ODM) “A” Fault (Cont'd) Step No Yes Value(s) Action 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 — 13 1. Connect the PCM. DVM. Was the voltage equal to the specified value? B+ Go to Step 15 Go to Step 14 14 1. Run the engine at idle. circuit. Was battery voltage available at the fuse? — Go to Step 10 Go to Step 9 15 Replace the PCM. Is the action complete? — Verify repair — |