Test Description
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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.
- 4: Tests the ignition 1 voltage circuit between the inside rear view mirror and the underhood fuse block for a short to ground, a high resistance, or an open.
- 5: Tests the passenger air bag OFF indicator control circuit for a short to ground, a high resistance, or an open.
- 6: Tests the passenger air bag ON indicator control circuit for a short to ground, a high resistance, or an open.
- 7: Tests the PPS module for proper operation.
Passenger Presence System Indicator Circuit Malfunction
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views or Stationary Windows Connector End Views in Stationary Windows. |
|||
| 1 | Did you perform the Diagnostic System Check - SIR? | Go to Step 2 | Go to Diagnostic System Check - SIR |
| 2 |
|
Go to Step 10 | Go to Step 3 |
| 3 |
|
Go to Step 10 | Go to Step 4 |
| 4 |
|
Go to Step 10 | Go to Step 5 |
| 5 | Test the passenger air bag OFF indicator control circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 6 |
| 6 | Test the passenger air bag ON indicator control circuit for a short to ground, a high resistance, or an open. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 7 |
| 7 |
|
Go to Step 8 | Go to Step 9 |
| 8 |
IMPORTANT:
When replacing the inside rear view mirror, perform the Compass Calibration and Variance Procedure
when the repair is complete. Replace the rear view mirror. Refer to Rearview Mirror Replacement
in Instrument Panel, Gages, and Console.Did you complete the replacement? |
Go to Step 10 | - |
| 9 |
IMPORTANT:
The PPS is a calibrated system. The PPS must be rezeroed after replacement. Replace the PPS. Refer to Inflatable Restraint Passenger Presence System Replacement - Front .Did you complete the replacement? |
Go to Step 10 | - |
| 10 |
|
System OK | Go to Step 2 |