DTC P2021 Subaru
Implausible Ignition Switch Status Message Received - Signal Stuck Low
Implausible Ignition Switch Status Message Received - Signal Stuck Low
Description
The Body Control Module (BCM) monitors the hardwired ignition switch input circuit from the Radio Frequency (RF) Hub module and compares it to the ignition switch status message received over the Controller Area Network (CAN) bus.
Cause and Solution
IGNITION RUN-START OUTPUT CIRCUIT OPENIGNITION RUN-START OUTPUT CIRCUIT SHORTED TO GROUNDRADIO FREQUENCY (RF) HUB MODULEBODY CONTROL MODULE (BCM)
Video Guide
Diagnostic Info
- DTC Code: P2021
- Brand: Subaru