Electronic Control System Signature, ISX and QSX15 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 circuit.

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

Intake Manifold Temperature Sensor Circuit
SMALL | MEDIUM | LARGE

Circuit Description

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

Component Location

The intake manifold pressure/temperature sensor is located on the side of the intake manifold in front of the air inlet horn.

Shop Talk

Sensor resistance varies with the temperature. Compare your readings with 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:  26-Oct-2010