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 APP sensor 2, 5-volt reference circuit is shared with the barometric pressure (BARO) sensor and the turbo boost solenoid, and they are internally connected within the ECM.
- For an intermittent, refer to Intermittent Conditions .
DTC P1125
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | Go to Step 2 | Go to Diagnostic System Check - Engine Controls |
| 2 | Is DTC P0642, P0643, P0652, P0653, P0698, or P0699 also set? | Go to Diagnostic Trouble Code (DTC) List | Go to Step 3 |
| 3 | Are any other APP sensor DTCs set? | Go to Diagnostic Trouble Code (DTC) List | - |