RL V6-3474cc 3.5L (1998)
Information Bus: Diagnostic Trouble Code Tests and Associated Procedures
Rear Window Defogger Control Unit / Input Test
Rear Window Defogger Control Unit / Input Test
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.
Multiplex Control Unit (Passenger's):
1. Remove the right kick panel.
2. Disconnect the 22P and 26P connectors. then remove the passenger's Unit.
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.
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If a 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.
NOTE: Before testing, go to the Troubleshooting Guide. Be sure to go through self-diagnosis function modes 1 and 2.
Multiplex Control Unit (Driver's):
1. Remove the under-dash fuse/relay box.
2. Remove the driver's unit from the under-dash fuse/relay box.
