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.
- 3: This step tests for the proper operation of the circuit in the low voltage range.
- 4: This step tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
DTC P0192
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Control Module (ECM) Connector End Views or Engine Controls Connector End Views |
||||
| 1 | Did you perform the Diagnostic System Check-Engine Controls? | - | Go to Step 2 | Go to Diagnostic System Check - Engine Controls |
| 2 |
|
1.2-1.9 MPa | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
175 MPa | Go to Step 4 | Go to Step 5 |
| 4 | Test the signal circuit of the FRP sensor for a short to ground or high resistance. Refer to Testing for Short to Ground
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 7 | Go to Step 6 |
| 5 | Replace the fuel rail pressure sensor. Refer to Fuel Rail Pressure (FRP) Sensor Replacement
. Did you complete the replacement? |
- | Go to Step 7 | - |
| 6 | Replace the ECM. Refer to Engine Control Module (ECM) Replacement
. Did you complete the replacement? |
- | Go to Step 7 | - |
| 7 |
|
- | Go to Step 2 | Go to Step 8 |
| 8 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List | System OK |