Courtesy/Reading Lamps Inoperative W/ Lamp Switch; Courtesy Lamps Inoperative With Doors Open (With Door Jamb Switches) - GMC Chevrolet Camaro 1998 Service Manual

8-76 Lighting Systems
Body and Accessories
Courtesy/Reading Lamps Inoperative w/ Lamp Switch
Step
Action Value{s) · Yes No
1. Disconnect the inside rearview mirror connector.
1
2. Connect a test lamp from inside rearview mirror
-
connector terminal C to terminal B.
(
Does the test lamp light?
Go to Step 2 Go to Step 3
1. Test for a poor connection at the inside rearview
mirror connector terminal C and terminal B.
2
2. If the connections are OK, replace the inside rearview
-
-
mirror. Refer to Rearview Mirror Replacement
Is the repair complete?
System OK
:
Repair the open in circuit 750 from the inside rearview
3
mirror to 8220
- -
Is the repair complete?
,.
System OK
Courtesy Lamps Inoperative with Doors Open (With Door Jamb Switches)
Step
Action
VaJue{s)
Yes No
Important: To prevent misdiagnosis, check for body control module (BCM) diagnostic trouble codes (DTCs). Refer to Body
Control Systems.
1
Open both of the doors.
~
Go to Step 2 Go to Step 9
Are the courtesy lamps on?
,1. Open each .door, one at a time, in order to determine
which is inoperative.
2. Using a fused jumper connected to ground,
2
backprobe the body control module (BCM)
-
connector C3 terminal 011 (driver door) or
terminal 012 (passenger door).
Are the courtesy lamps on? Go to Step 4
Go to Step 3
(
1. Test for a poor connection at BCM connector C3
terminal 011 (driver door) or terminal 012.
3
2. If the connection is OK, replace the BCM. Refer to
-
-
Body Control Module Replacement
Is the repair complete? System OK
Using a fused jumper connected to ground, backprobe
4
connector C200C terminal 4 (driver door) or terminal 5
(passenger door).
-
Are the courtesy lamps on?
Go.to Step 5 Go to Step 6
1. Disconnect the inoperative door jamb switch.
5
2. Connect a fused jumper from the door jamb switch
-
connector terminal to ground.
Are the courtesy lamps on?
.
'
Go to Step B Go to Step 7
1. Test for a poor connection at connector C200.
2. If the connection is OK, repair the open in,circuit 745
6
(driver door) or 746 (passenger door) between
-
-
connector C200 and the BCM.
Is the repair complete?
System OK
1. Test for a poor connection at connector C200.
2. If the connection is OK, repair the open in circuit 745
7
(driver door) or 746 (passenger door) between
-
-
connector C200 and the front side door lock.
Is the repair complete? System OK
(