Step
| Action
| Value(s)
| Yes
| No
|
1
| Did you perform the Power Seat Memory Diagnostic System Check?
| --
| Go to
Step 2
| Go to
Memory Seats System Check
|
2
|
- Ensure that the power mirror switch is either in the LEFT, RIGHT,
or OFF position. If the switch is in between these positions, the switch may
create an indeterminate state for the memory seat/mirror module. This will
cause all of the memory functions to become inoperative.
- Turn the ignition switch to the OFF position.
- Connect a fused jumper from the memory seat/mirror module diagnostic
connector to ground.
• | You may tape the connector up into the body harness. |
• | The memory seat/mirror module will beep once in order to acknowledge
entrance into the mode 1 diagnostics. |
• | Refer to Circuit Operation for a detailed explanation of the memory
seat/mirror module diagnostic modes. |
- Operate the DRIVER-1 and DRIVER-2 recall buttons and the MEMORY
SET button on the left seat switch. (The module will beep once for each switch
input received.)
- Any time a switch is operated and the module does not beep, the
module did not receive an input from that switch.
Were there any switch operations where the memory seat/mirror module
did not beep?
| --
| Go to
Step 6
| Go
to
Step 3
|
3
|
- Remove ground from the memory seat/mirror module diagnostic connector,
then ground the connector again within 5 seconds.
• | The module will beep twice in order to acknowledge entrance in
to the mode 2 diagnostics. |
• | Refer to Circuit Operation for a detailed explanation of the memory
seat/mirror module diagnostic modes. |
- Operate the seat switch in all directions. (The module will beep
once for each open or short circuit to a position sensor or any position sensor
discontinuity.)
- Any time a switch is operated and the module beeps, the module
senses a problem with the position sensor.
Were there any switch operations where the memory seat/mirror module
beeped?
| | Go to
Step 4
| Go to
Step 9
|
4
| Test for an open or short in CKT 788 (GRY). Refer
to
Testing for Continuity
in Wiring Systems.
Is CKT 788 OK?
| --
| Go to
Step 5
| Go to
Step 8
|
5
| Test for an open or short in CKT 782 (BLK). Refer to
Testing for Continuity
in Wiring Systems.
Is CKT 782 OK?
| --
| Go to
Step 9
| Go to
Step 8
|
6
| Inspect the following wiring for an open:
• | CKT 615 (WHT) (DRIVER-1) |
• | CKT 616 (PPL) (DRIVER-2) |
• | CKT 614 (ORN) (MEMORY SET) |
Refer to
Testing for Continuity
in Wiring Systems.
Is the above wiring OK?
| --
| Go to
Step 7
| Go to
Step 8
|
7
| Replace the left seat switch. Refer to
Power Seat Switch Replacement
.
Is the repair complete?
| --
| Go to
Memory Seats System Check
| --
|
8
| Repair the suspect wiring. Refer to
Wiring Repairs
in Wiring Systems.
Is the repair complete?
| --
| Go to
Memory Seats System Check
| --
|
9
|
- The system is functioning properly.
- If the condition persists, replace the memory seat/mirror module.
Is the repair complete?
| --
| Go to
Memory Seats System Check
| --
|