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Diagnostic Trouble Code Definitions

BCM DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC

Description

B110 ⁽¹⁾

Outside Temperature Sensor Circuit

B111 ⁽¹⁾

A/C High Side Temperature Sensor Circuit

B112 ⁽¹⁾

A/C Low Side Temperature Sensor Circuit

B113 ⁽¹⁾

In-Car Temperature Sensor Circuit

B115 ⁽¹⁾

Sunload Sensor Circuit

Twilight Photocell Circuit

Twilight Delay Switch Pot Circuit

Twilight Delay & Panel Dimming Switch

B122 ⁽²⁾

Panel Dimming Failure

B132 ⁽²⁾

Oil Pressure Sensor Failure

B333 B334 , B335 , B336 , B337 Or B339

Multiple Intermittent Data Codes

B332 ⁽³⁾

Loss Of ABS/TCS Data

Loss Of DERM Data

Loss Of PCM Data

Loss Of Combo Panel Data

Loss Of IPC Data

Loss Of HVAC Programmer Data

B339 ⁽⁴⁾

Loss Of Road Sensing Suspension (RSS) Data

B410 ⁽⁵⁾

Charging System Circuit

B411 Or B412 ⁽⁵⁾

Battery Voltage Too Low Or Too High

B440 ⁽¹⁾

Air Mix Valve (Door) Circuit Problem

B446 Or B447 ⁽¹⁾

Low Refrigerant Charge

B448 ⁽¹⁾

Low Refrigerant Pressure

B446, B447 Or B448 ⁽¹⁾

Refrigerant System Problem

B449 ⁽¹⁾

HVAC - High Side Temperature Too High

B450 ⁽¹⁾

HVAC - Coolant Temperature To High

BCM Keep Alive Memory Error

Odometer EEPROM Error

Headlight Switch Communication Failure

Lighting System Low Voltage Warning

⁽¹⁾	Perform appropriate test in AUTOMATIC A/C-HEATER SYSTEMS -- ALLANTE article in HEATING & AIR CONDITIONING.

⁽²⁾	Perform appropriate test in INSTRUMENT PANELS -- ALLANTE article in ACCESSORIES & EQUIPMENT.

⁽³⁾	Perform appropriate test in ANTI-LOCK & TRACTION CONTROL -- ALLANTE article in BRAKES.

⁽⁴⁾	Perform appropriate test in ELECTRONIC -- SPEED DEPENDENT DAMPING -- ALLANTE article in SUSPENSION.

⁽⁵⁾	Perform appropriate test in GENERATORS & REGULATORS -- ALLANTE article in STARTING & CHARGING SYSTEMS.