RL V6-3.7L (2009)
Information Bus: Component Tests and General Diagnostics
Multiplex Integrated Control System Driver's MPCS Unit Input Test
Multiplex Integrated Control System Driver's MPCS Unit Input Test
NOTE: Before testing, troubleshoot B-CAN System Diagnosis Test Mode A. See: Troubleshooting - B-CAN System Diagnosis Test Mode A
1. Turn the ignition switch to LOCK (0).
2. Remove the driver's door panel. See: Body and Frame/Doors, Hood and Trunk/Doors/Front Door/Front Door Panel/Service and Repair/Front
Door Panel Removal/Installation
3. Disconnect driver's MPCS unit connector A (40P).
4. Inspect the connector and socket terminals to be sure they are all making good contact.
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If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
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If the terminals look OK, go to step 5.
5. Reconnect the connector to the driver's MPCS unit, and make these input tests at the connector.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, go to step 6.
6. Disconnect driver's MPCS connector A (40P), and make these input tests at the connector.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, the driver's MPCS unit must be faulty, replace it.
