CID 1929 FMI 03 Fuel Return Temperature Sensor voltage high/short to +batt
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects the following conditions:
- The ECM reads signal voltage that is above 4.8 VDC for eight seconds.
- The ECM has been powered for at least two seconds.
System Response:
The ECM will log the diagnostic code. The ECM will set fuel temperature to a default value.
Possible Performance Effect:
- Low power
Troubleshooting:
Test Step 1. Perform the following diagnostic procedure: "Engine Temperature Sensor Open or Short Circuit - Test"
Results:
- OK - STOP
Caterpillar Information System:
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