Step
| Action
| Value(s)
| Yes
| No
|
1
|
| • | On Chevrolet vehicles, backprobe with a test lamp from the outside
rearview mirror switch connector terminal A to the ground. |
| • | On Pontiac vehicles, backprobe with a test lamp from the outside
rearview mirror switch connector terminal H to the ground. |
Does the test lamp light?
| --
|
Go to Step
3
|
Go to Step 2
|
2
| Repair the open or poor connection in CKT 640, between the outside
rearview mirror switch and S211.
Is the repair complete?
| --
| System OK
| |
3
| Using a test lamp, backprobe between the outside rearview mirror switch
connector terminal A and terminal H.
Does the test lamp light?
| --
|
Go to Step
4
|
Go to Step 5
|
4
|
- Test for a poor connection at the outside rearview mirror switch
connector.
- If OK, replace the switch.
Is the repair complete?
| --
| System OK
| --
|
5
|
| • | On Chevrolet vehicles, repair the open in circuit 750,
from S220 to outside rearview mirror switch connector terminal H. |
| • | On Pontiac vehicles, repair the open in circuit 750, from
S220 to outside rearview mirror switch connector terminal A. |
Is the repair complete?
| --
| System OK
| --
|
