Symptom Related Diagnostic Procedures

Related Faults / Codes:

DTC P0111 IAT circuit range/performance problem

Possible Source(s):
Blocked air cleaner
Poor air system sealing
Engine breather leak
Sensor out of range/short
Harness open circuit
Harness short Connector loose or corroded
Action(s) to take:
GO to Pinpoint Test X

DTC P0112 IAT sensor high voltage (low air temperature)

Possible Source(s):
Sensor to ECM circuit open circuit or high resistance
Sensor to ECM circuit short to high voltage
Connector loose or corroded
Sensor failure
Action(s) to take:
GO to Pinpoint Test X

DTC P0113 IAT sensor low voltage (high air temperature)

Possible Source(s):
Sensor to ECM circuit short circuit to ground
Sensor failure
Action(s) to take:
GO to Pinpoint Test Y

DTC P1112 IAT 2 sensor high voltage (low air temperature)

Possible Source(s):
Sensor to ECM circuit open circuit or high resistance
Sensor to ECM circuit short to high voltage
Connector loose or corroded
Sensor failure
Action(s) to take:
GO to Pinpoint Test AA

DTC P1113 IAT 2 sensor low voltage (high air temperature)

Possible Source(s):
Sensor to ECM circuit short circuit to ground
Sensor failure
Supercharger intercooler failure
Action(s) to take:
GO to Pinpoint Test BB