Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Connect a test lamp.
- Backprobe between the driver seat adjuster motor assembly connector
C2 terminal A and ground.
- Set and hold the front height seat adjuster switch to the DOWN
position.
Does the test lamp light?
| --
| Go to
Step 2
| Go to
Step 3
|
2
|
- Connect a test lamp.
- Backprobe between the driver seat adjuster motor assembly connector
C2 terminal B and ground.
- Set and hold the front height seat adjuster switch to the UP position.
Does the test lamp light?
| --
| Go to
Step 6
| Go to
Step 7
|
3
|
- Connect a digital multimeter (DMM).
- Inspect for a poor connection or open in CKT 287 between
the driver seat adjuster switch terminal H and the driver seat adjuster motor
assembly connector C2 terminal A.
Is there a poor connection or open in CKT 287?
| --
| Go to
Step 4
| Go to
Step 5
|
4
|
- Repair the poor connection or open in CKT 287.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
5
|
- Replace the driver seat adjuster switch. Refer to
Power Seat Switch Replacement
.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
6
|
- Connect a test lamp.
- Backprobe between the driver seat adjuster motor assembly connector
C2 terminals A and B.
- Set and hold the front height seat adjuster switch momentarily
to the UP position and then to the DOWN position.
Does the test lamp illuminate in both directions?
| --
| Go to
Step 9
| Go to
Step 5
|
7
|
- Connect a DMM.
- Inspect for a poor connection or open in CKT 286 between
the driver seat adjuster switch terminal G and the driver seat adjuster motor
assembly connector C2 terminal B.
Is there a poor connection or open in CKT 286?
| --
| Go to
Step 8
| Go to
Step 5
|
8
|
- Repair the poor connection or open in CKT 286.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
9
|
- Connect a DMM.
- Inspect for a poor connection in the driver seat adjuster motor
assembly connector C2 terminals A or B.
Is there a poor connection or open at terminal A or terminal B?
| --
| Go to
Step 10
| Go to
Step 11
|
10
|
- Repair the poor connection or open at either terminal A or B.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
11
|
- Replace the driver seat adjuster motor assembly. Refer to
Front Seat Adjuster Motor Replacement
.
- Inspect the system.
Is the repair complete?
| --
| System OK
| --
|
