Test Description
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. 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 for a short to ground between the CAN HI and CAN LO circuits.
- 3: This step tests the CAN HI and CAN LO circuits for a short together.
- 4: This test checks to see if steering angle sensor is centered.
DTC U1650
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS 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 Step 8 | Go to Step 3 |
| 3 | Using the DMM, test the CAN HI and CAN LO circuits between the steering angle sensor and the EBCM for being shorted together. Refer to Circuit Testing
. Did you find and correct the condition? |
Go to Step 8 | Go to Step 4 |
| 4 | Perform the steering angle sensor centering procedure. Refer to Steering Angle Sensor Centering Procedure . Did you successfully complete the centering procedure? |
Go to Step 5 | Go to Step 6 |
| 5 |
|
Go to Step 7 | Go to Step 8 |
| 6 | Replace the steering angle sensor. Refer to Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement
. Did you complete the replacement? |
Go to Step 8 | - |
| 7 | Replace the EBCM. Refer to Control Module References
for replacement, setup and programming. Did you complete the replacement? |
Go to Step 8 | - |
| 8 |
|
Go to Step 2 | System OK |