Electronic Control System Signature, ISX and QSX15 Engines – FAULT CODE 212

Oil Temperature Sensor Circuit


Overview

CODE REASON EFFECT
Fault Code: 212
PID: P175
SPN: 175
FMI: 3/3
LAMP: Yellow
SRT: 

High voltage detected at the oil temperature circuit.

No engine protection for oil temperature.

Oil Temperature Sensor Circuit
SMALL | MEDIUM | LARGE

Circuit Description

The oil pressure/temperature sensor is used by the electronic control module (ECM) to monitor the temperature of the engine oil. If the oil temperature becomes too high and the engine protection is enabled, a derate condition can be incurred, possibly leading to shutdown.

Component Location

The oil pressure/temperature sensor is located on the engine block to the left of the fuel filter, behind the air compressor.

Shop Talk

Sensor resistance varies with temperature. Compare the resistance measurement 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 t05-212.

Last Modified:  26-Oct-2010