Diagnostic Aids
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
When an adjuster motor control circuit is shorted to ground the driver seat module will also set a DTC B3962.
DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Verify the fault is present. Does the system operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 |
|
Go to Step 5 | Go to Step 4 |
| 4 | Test the motor control circuits for an open or short to ground. Refer to Circuit Testing
and to Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 5 | Inspect for poor connections at the adjuster motor connector. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the driver seat module. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 7 | Replace the appropriate adjuster motor assembly. Refer to Front Seat Adjuster Motor Replacement . Did you complete the replacement? |
Go to Step 9 | - |
| 8 | Replace the driver seat module. Refer to Control Module References
for replacement, setup and programming. Did you complete the replacement? |
Go to Step 9 | - |
| 9 |
|
Go to Step 3 | System OK |