Test Description
WARNING: This page is about a different car, the 2004 Pontiac Vibe. 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.
- 3: Tests the front end discriminating sensor for the proper resistance value.
- 5: Tests for an open, short to ground, or short to voltage in the front end discriminating sensor - left circuits.
DTC B1158 or B1159
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views |
||||
| 1 | Did you perform A Diagnostic System Check - SIR? | - | Go to Step 2 | Go to Diagnostic System Check - SIR |
| 2 |
|
- | Go to Step 8 | Go to Step 3 |
| 3 | Measure the resistance between the front end discriminating sensor - left terminals. Refer to Circuit Testing
in Wiring Systems. Does the resistance measure as specified? |
Approximately 820 Ω | Go to Step 4 | Go to Step 6 |
| 4 |
|
- | Go to Step 8 | Go to Step 5 |
| 5 | Test the front end discriminating sensor - left - signal and the front end discriminating sensor - left - reference circuits for the following conditions:
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 8 | Go to Step 7 |
| 6 | Replace the Inflatable Restraint Front End Discriminating Sensor - Left. Refer to Inflatable Restraint Front End Discriminating Sensor Replacement - Left . Did you complete the replacement? |
- | Go to Step 8 | - |
| 7 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Did you complete the replacement? |
- | Go to Step 8 | - |
| 8 |
|
- | Go to Step 2 | System OK |