2531-Injector 1 Quantity Calibration Lower Range Limit: Notes
For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .
- When Monitored:
With the engine running.
- Set Condition:
The ECM detects an open in the Fuel Injector 1 circuit.
| Possible Causes |
|---|
| FUEL INJECTOR NO. 1 HIGH-SIDE CONTROL CIRCUIT SHORTED TO VOLTAGE |
| FUEL INJECTOR NO. 1 LOW-SIDE CONTROL CIRCUIT SHORTED TO VOLTAGE |
| FUEL INJECTOR NO. 1 HIGH-SIDE CONTROL CIRCUIT SHORTED TO GROUND |
| FUEL INJECTOR NO. 1 LOW-SIDE CONTROL CIRCUIT SHORTED TO GROUND |
| FUEL INJECTOR NO. 1 HIGH-SIDE CONTROL CIRCUIT SHORTED TO FUEL INJECTOR NO. 1 LOW-SIDE CONTROL CIRCUIT |
| FUEL INJECTOR NO. 1 HIGH-SIDE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| FUEL INJECTOR NO. 1 LOW-SIDE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| FUEL INJECTOR NO. 1 |
| ENGINE CONTROL MODULE (ECM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure