Diagnostic Trouble Code (DTC) Information ECM-141B: Notes
Condition
The central electronic module (CEM) transmits the signal from the outside temperature sensor via CAN to the engine control module (ECM).
The diagnostic trouble code (DTC) is stored in the engine control module (ECM) if the signal from the outside temperature sensor is within its normal range but deviates from the calculated temperature.
The diagnostic trouble code (DTC) can be diagnosed after 5 minutes driving at an engine speed above 1700 rpm and a speed above 50 km/h.
Substitute Value
Value from the engine intake air temperature (IAT) sensor in the intake manifold is used.
Possible Source
- Damaged outside temperature sensor
- Damaged intake air temperature (IAT) sensor
- Fault-trace the central electronic module (CEM).
Fault symptom[s]
- Starting/Engine hard to start/cranks slowly/Unsure when/at all times
- Gauges/Ambient temperature gauge not accurate/does not work