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Typical Scan Tool Data

Battery Voltage - BCM 

SCAN TOOL DATA (BATTERY VOLTAGE - BCM)

Circuit Short to ground Open Short to voltage
Operating Conditions:  Key On, Engine Off.
Parameter Normal Range:  11.50 Volts to 13.00 Volts.
BCM B+ (BCM terminal X3-3) 0.00 Volts 25.60 Volts -

Batt. Voltage High Res. - BCM 

SCAN TOOL DATA (BATTERY VOLTAGE HIGH RESISTANCE - BCM)

Circuit Short to ground Open Short to voltage
Operating Conditions:  Key On, Engine Off.
Parameter Normal Range:  11.500 Volts to 13.000 Volts.
RVC B+ (BCM terminal X4-10) 0.000 Volts 0.000 Volts -