DTC B1940 Dodge
Intake Air Temperature Sensor Circuit High Input
Intake Air Temperature Sensor Circuit High Input
Description
Engine started; and the PCM detected the IAT sensor indicated less than -40ºF for 500 ms.
Cause and Solution
IAT sensor signal circuit is open between sensor and the PCMIAT sensor signal circuit is shorted to system powerIAT sensor is damaged or has failedPCM has failed
Video Guide
Diagnostic Info
- DTC Code: B1940
- Brand: Dodge