Control Unit Input Test - Acura 3.5 RL Manual

Control Unit Input Test

NOTE:
• Before testing, go to the Troubleshooting Guide (see page 23-244). Be sure to go through self-diagnosis function
modes 1 and 2 (see pages
• 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 (see
2. Disconnect the 22P and 26P connectors, then remove the passenger's unit (see page 23-246).
3. Inspect the connector and socket terminals to be sure they are all making good contact.
• If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
• If the terminals look OK, make the following input tests at the connector.
If a test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, the power window master switch must be faulty; replace it.
Disconnect the connectors from the passenger's unit.
Cavity Wire Test condition
Turn the ceiling light
switch MIDDLE and all
BLU/RED
B10
doors closed
LT All doors closed
B21
GRN/BLK
Reconnect the connectors to the passenger's unit.
Cavity Wire Test condition
Front passenger's door
opened
GRN/RED
A23
Front passenger's door
closed
Right rear door opened
GRN/ORN
B18
Right rear door closed
23-248 and 23-252).
section 20).
Test: Desired result
Connect to ground:
Ceiling light should come on.
Connect to ground:
Courtesy lights should come on.
Check for voltage to ground:
There should be less than 1 V.
Check for voltage to ground:
There should be 5 V or more.
Check for voltage to ground:
There should be less than 1 V.
Check for voltage to ground:
There should be 5 V or more.
Test: Desired result
Possible cause if result is not obtained
• Blown No. 57 (20 A) fuse in the
under-hood fuse/relay box
• Faulty ceiling light
• An open in the wire
• Faulty courtesy light
• An open in the wire
Possible cause if result is not obtained
• Faulty front passenger's door
switch
• Poor ground (G401, G402)
• An open in the wire
• Faulty right rear door switch
• Poor ground (G601)
• An open in the wire