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FAULT CODE 155

Intake Manifold 1 Temperature - Data Valid But Above Normal Operating Range - Most Severe Level

Overview


CODE

REASON

EFFECT

Fault Code: 155 PID:

SPN: 105

FMI: 0 LAMP: Red SRT:

Intake Manifold 1 Temperature - Data Valid But Above Normal Operating Range - Most Severe Level. Intake manifold 1 temperature above engine protection critical limit.

Industrial: Calibration dependent progressive power derate and engine shutdown with increasing time after alert.


Power Generation: Calibration dependent possible engine shutdown.

Intake Manifold 1 Temperature Sensor Circuit


Circuit Description


The intake manifold 1 temperature sensor monitors intake manifold air temperature and passes information to the engine control module (ECM) through the engine harness.


Component Location


The intake manifold 1 temperature sensor is located in the air intake manifold. Use the following procedure for a detailed component location view. Refer to Procedure 100-002 in Section E.

Shop Talk


The intake manifold 1 temperature sensor measures the temperature of the charge-air as it passes through the intake manifold. Possible causes of this fault include:


  • Restricted air flow through the charge air cooler

  • Undersized charge-air cooler

  • High turbocharger compressor outlet temperature.


Refer to Troubleshooting Fault Code t05-155.


Last Modified: 28-Nov-2012

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