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Test Y: The Charging System Warning Indicator Is Never/Always On

PINPOINT TEST Y: THE CHARGING SYSTEM WARNING INDICATOR IS NEVER/ALWAYS ON

Normal Operation
The instrument cluster (IC) receives the charge signal from the PCM through the high speed controller area network (HS-CAN) communication bus. When the generator output is insufficient to maintain the battery state of charge, the instrument cluster (IC) illuminates the charging system warning indicator.

This pinpoint test is intended to diagnose the following:
- PCM
- Instrument cluster (IC)

Test Y: The Charging System Warning Indicator Is Never/Always On

Y1-Y4: