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Test Y: The LH/RH Turn Or High Beam Indicator Is Never/Always On

PINPOINT TEST Y: THE LH/RH TURN OR HIGH BEAM INDICATOR IS NEVER/ALWAYS ON

Normal Operation
When the multifunction switch is in the LH or RH TURN position or if the high beams are on, a message is sent to the instrument cluster (IC) from the smart junction box (SJB) over the medium speed controller area network (CAN) communication bus. The instrument cluster (IC), upon receipt of the LH/RH turn or high beam on message, flashes the LH or RH turn signal indicator on and off or illuminates the high beam indicator.

Possible Causes
- Turn signal concern
- High beam concern
- SJB
- Instrument cluster (IC)


Y1-Y7:






Y8: