MID 036 - CID 1758 - FMI 03 Specific Humidity Sensor open/short to +batt
Conditions Which Generate This Code:
The duty cycle of the pressure sensor for the specific humidity of the inlet air is greater than the maximum limit.
Additionally, neither of the following diagnostic codes are active:
- 262 - 03 5 Volt DC Supply short to +batt
- 262 - 04 5 Volt DC Supply short to ground
System Response:
The alarm output is activated. The code is logged.
Possible Performance Effect:
The engine performance is not affected.
Troubleshooting:
The condition indicates a possible open circuit or a short circuit.
Test Step 1. Perform the following diagnostic procedure: "PWM Sensor"
Results:
- OK - STOP
Caterpillar Information System:
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