DTC B1A77 Dodge
Intake Air Temperature Sensor Circuit Malfunction
Intake Air Temperature Sensor Circuit Malfunction
Description
Key on for over 60 seconds, or right after engine startup, and the PCM detected the IAT sensor indicated more than 4.60v or less than 0.20v, condition met for 4 seconds during the CCM test.
Cause and Solution
IAT sensor signal circuit is open or shorted to groundIAT sensor signal circuit shorted to VREF or to system powerIAT sensor is damaged or has failed (out of calibration)PCM has failed
Video Guide
Diagnostic Info
- DTC Code: B1A77
- Brand: Dodge