B1516 66 Chevrolet Silverado 3500 HD

1. The BCM is awake.
2. The engine is OFF.
3. The hood and doors are closed.
4. DTC B1516 08 has run and passed during this ignition cycle.
5. DTC B1516 66 has not already run and passed during this ignition cycle.

Conditions for Setting the DTC

B1516 08

The BCM detects the PWM duty cycle on the sensor signal circuit is less than 4 percent or greater than 96 percent for 2 minutes.

B1516 66

The BCM detects positive battery current when the engine is OFF.

Action Taken When the DTC Sets

Regulated voltage control (RVC) is disabled.

Conditions for Clearing the DTC

1. The DTC passes when the 12V battery sensed current returns to normal range for 15 seconds.
2. A history DTC will clear after 100 ignition cycles.

Reference Information

Schematic Reference

1. «Starting and Charging Schematics»(ref-317183-S04519712352009060900000)
2. «Body Control System Schematics»(ref-317152-S33865031622009060900000)

Connector End View Reference

Component Connector End Views

Description and Operation

Charging System Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-317172-S12100958872009060900000)
2. «Connector Repairs»(ref-317172-S41839496312009060900000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
4. «Wiring Repairs»(ref-317172-S40815672902009060900000)

Scan Tool Reference

Control Module References for scan tool information