Diagnostic Aids
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 presence of current or history DTCs while attempting to rezero the PPS will cause the PPS module to set DTC 063. Verify that all SIR and PPS DTCs have been cleared before rezeroing the PPS.
DTC 063
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check - SIR? | Go to Step 2 | Go to Diagnostic System Check - SIR |
| 2 |
|
Go to Step 3 | Go to Diagnostic System Check - SIR |
| 3 |
IMPORTANT:
The passenger presence system (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 4 | - |
| 4 |
|
Go to Diagnostic System Check - SIR | - |