Test Description
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. 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: Tests for a short to ground between the CAN HI and CAN LO circuits.
- 3: Tests the CAN HI and CAN LO circuits for a short together.
- 4: 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 ABS Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - ABS |
| 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
in Wiring Systems. 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
in Steering Wheel and Column. Did you complete the replacement? |
Go to Step 8 | - |
| 7 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement? |
Go to Step 8 | - |
| 8 |
|
Go to Step 2 | System OK |