Diagnostic Aids
If the DTC is only found in history, the fault may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections .
DTC B1830, B1835, B1840 or B1845
| 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 |
|
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Disconnect the power lumbar switch connector. Does the scan tool display Idle? |
Go to Step 5 | Go to Step 4 |
| 4 | Test the switch signal circuit for which the DTC has set for a short to voltage. Refer to Circuit Testing
and to Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 5 | Inspect for poor connections at the power lumbar switch. 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 6 |
| 6 | Replace the lumbar switch. Refer to Lumbar Switch Replacement - Front . Is the repair complete? |
Go to Step 9 | - |
| 7 | Inspect for poor connections at the 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 |
| 8 | Replace the seat module. Refer to Control Module References
for replacement, setup and programming. Is the repair complete? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |