3412E Petroleum Engine Caterpillar


CID 0105 FMI 03 Inlet Manifold Temp Sensor open/short to +batt

Usage:

3412E Z2D
Conditions Which Generate This Code:

The ECM detects a signal voltage from the inlet air temperature sensor that is greater than 4.8 volts.

System Response:

The ECM flags inlet air temperature as invalid data and a default value of −40 °C (−40 °F) is used.

  • Hard starting

  • Low power

Test Step 1. Perform the following diagnostic procedure: Engine Sensor Open/Short Circuit - Test

Results:

  • OK - STOP

Caterpillar Information System:

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