Electronic Control System ISM and QSM11 Engines – FAULT CODE 153

Intake Manifold Temperature Sensor Circuit


Overview

CODE REASON EFFECT
Fault Code: 153
PID: P105
SPN: 105
FMI: 3/3
LAMP: Yellow
SRT: 

High voltage detected at the intake manifold temperature sensor circuit.

Possible white smoke. Fan will stay on if controlled by the electronic control module (ECM). No engine protection for intake manifold temperature.

Intake Manifold Temperature Sensor Circuit
SMALL | MEDIUM | LARGE

Circuit Description

The intake manifold temperature sensor is used by the ECM to monitor the temperature of the engine intake air. The intake manifold temperature signal is used by the ECM for the engine protection system, timing, and fueling control.

Component Location

The intake manifold temperature sensor is located on the top front half of the intake manifold.

Shop Talk

The resistance of the sensor varies with the temperature. Compare your reading to this table:

Temperature (°C)
Temperature [°F]
Resistance (ohms)
0
32
30k to 36k
25
77
9k to 11k
50
122
3k to 4k
75
167
1350 to 1500
100
212
600 to 675

Refer to Troubleshooting Fault Code t05-153

Last Modified:  02-Sep-2010