DTC P1090 Subaru
Implausible Ignition Switch Status Message Received - General Electrical Failure
Implausible Ignition Switch Status Message Received - General Electrical Failure
Description
The Radio Frequency Hub (RF Hub) receives a Bussed Input message of the Ignition Switch status from the Body Control Module (BCM). If that message does not agree with the RF Hub Ignition Switch status, this code will set. The Radio Frequency Hub (RF HUB) also sends an Ignition Switch quot;Sensor quot; message (hard wired F20 circuit). If the RF Hub and the BCM do not agree on Both of those messages, the BCM will not allow the engine to start.
Cause and Solution
ACTIVE U1433-23 OR U1433-24 DTCS IN THE BCMIGNITION RUN START OUTPUT CIRCUIT OPENIGNITION RUN START OUTPUT CIRCUIT SHORTED TO GROUNDBODY CONTROL MODULE (BCM)RADIO FREQUENCY HUB (RF HUB)
Video Guide
Diagnostic Info
- DTC Code: P1090
- Brand: Subaru