*CHECKING THE FUEL PRESSURE SENSOR CIRCUITS
For a complete wiring diagram Refer to Section 8W
| Possible Causes |
| OPEN CIRCUITS |
Diagnostic Test
1. OPEN CIRCUITS
Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires. Repair as necessary.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals. Repair as necessary.
Measure the resistance of each of the three Fuel Pressure Sensor circuits between the ECM harness connector and the Fuel Pressure Sensor harness connector.
Is the resistance below 10.0 ohms for each measurement?
Yes
- Test Complete.
No
- Repair open circuit(s) as necessary.
- Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).