DTC B0514 Chevrolet Silverado 2500 HD

This DTC is for the Right Lower Air Temperature Sensor

Conditions for Running the DTC

The ignition is turned On.

Conditions for Setting the DTC

The HVAC control module detects the signal circuit is less than 0.09 volts (5 counts) or more than 4.90 volts (250 counts).

Action Taken When the DTC Sets

The Auto feature of the HVAC control module will be inoperative.

Conditions for Clearing the DTC

1. The DTC will become history if the HVAC control module no longer detects a failure.
2. The history DTC will clear after 50 fault-free ignition cycles.

Reference Information

Schematic Reference

HVAC Schematics

Connector End View Reference

HVAC Connector End Views

Description and Operation

Air Temperature Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-278019-S01379251932008012100000)
2. «Connector Repairs»(ref-278019-S06982211772008012100000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-278019-S21810776732008012100000)
4. «Wiring Repairs»(ref-278019-S25320832652008012100000)

Scan Tool Reference

1. «Scan Tool Output Controls»(ref-277997-S27681403182008012100000)
2. «Scan Tool Data List»(ref-277997-S08857823782008012100000)
3. «Scan Tool Data Definitions»(ref-277997-S06825792862008012100000)