RL V6-3474cc 3.5L (1998)
Information Bus: Diagnostic Trouble Code Tests and Associated Procedures
Multiplex Control Unit (Driver's)
NOTE:
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Before testing, go to the Troubleshooting Guide. See: Initial Inspection and Diagnostic Overview Be sure to go through self-diagnosis function
modes 1 and 2.
See: Reading and Clearing Diagnostic Trouble Codes/Self-Diagnosis Function (Mode 1)
See: Reading and Clearing Diagnostic Trouble Codes/Self-Diagnosis Function (Mode 2)
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All connector views are from the wire side of female terminals unless otherwise noted.
1. Remove the under-dash fuse/relay box.
2. Remove the driver's unit from the under-dash fuse/relay box.
3. 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, make the following input tests at the connector and the fuse/relay box socket.
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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 control unit must be faulty; replace it.
