FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Diagnostic Trouble Code (DTC) Information




ECM-120A INTAKE AIR TEMPERATURE (IAT) SENSOR INLET
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION

Condition
The engine speed (RPM) must be higher than 1,500 rpm. Load above 10 grams per second. The Engine Coolant Temperature (ECT) must be below 50°C Diagnostic Trouble Code (DTC) ECM-120A is stored if the control module registers that the temperature of the intake air is more than 60deg C for approximately 15 seconds.

Condition
30°C

Possible source

Faulty signal:
- defective Intake Air Temperature (IAT) sensor internally in the Mass Air Flow (MAF) sensor
- contact resistance in the connectors.

Condition
None.