Test Description
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- 2: This step tests the PSDM for the optical sensor 5-volt reference and ground.
- 3: This step tests the optical sensor 1 signal circuit. While the varying voltage measured on this circuit can range as low as 0.01 volts or as high as 4.5 volts, the average voltage measured is usually within 1.0-3.0 volts when the PSD is moving at the approximate power operating speed.
- 4: This step tests the optical sensor 2 signal circuit. While the varying voltage measured on this circuit can range as low as 0.01 volts or as high as 4.5 volts, the average voltage measured is usually within 1.0-3.0 volts when the PSD is moving at the approximate power operating speed.
- 6: The optical sensor needing replacement is part of the PSD motor/clutch assembly and is not serviced separately.
DTC B3250: Power Sliding Door Position Signal Circuit
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Power Sliding Door (PSD) Schematics Connector End View Reference: Power Door Systems Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Measure the voltage between the 5-volt reference circuit and the low reference circuit, at the power sliding door module (PSDM) connector. Is the voltage within the specified value? |
4.5-5.5 V | Go to Step 3 | Go to Step 7 |
| 3 |
|
0.01-4.5 V | Go to Step 4 | Go to Step 5 |
| 4 |
|
0.01-4.5 V | Go to Step 7 | Go to Step 5 |
| 5 | Inspect and if possible repair any damage to the optical sensor harness or connector. Refer to Wiring Repairs
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 6 |
| 6 | Inspect and if possible repair any damage to the PSD clutch/motor harness or connector. Refer to Wiring Repairs
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 8 |
| 7 | Inspect for poor connections at the PSDM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 10 | Go to Step 9 |
| 8 | Replace the PSD motor/clutch assembly. Refer to Motor Clutch Replacement - Power Sliding Door (With RPO E59 LH) or Motor Clutch Replacement - Power Sliding Door (With RPO E58 RH) . Is the repair complete? |
- | Go to Step 10 | - |
| 9 | Replace the PSDM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup and programming. Is the repair complete? |
- | Go to Step 10 | - |
| 10 | Re-initialize the PSD and operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 2 |