Test Y: DTC B2844 - Ignition Fault
PINPOINT TEST Y: DTC B2844 - IGNITION FAULTY1-Y3:
Y3-Y4:
Normal Operation
With the ignition switch in the START or RUN position, the instrument cluster receives voltage from the smart junction box (SJB) through circuit CBP20 (YE/VT). When the ignition switch is turned to the OFF or ACC position, the voltage drops to 0 volts on circuit CBP20 (YE/VT). The instrument cluster sets DTC B2844 in continuous memory if the instrument cluster detects voltage on circuit CBP20 (YE/VT) with the ignition switch in the ACC position or if no voltage is supplied by the key-in-ignition switch on circuit CDC30 (BU/GY) with the ignition in the START, RUN or ACC positions.
Possible Causes
- Circuit CBP20 (YE/VT) open
- Ignition switch
- Instrument cluster