GM Service Manual Online
For 1990-2009 cars only

DTC

Description

Type

DTC B0432

Rear Defogger Relay Circuit

BCM

DTC B0433

Rear Defogger Relay Circuit

BCM

DTC B0502

RH DRL Relay Circuit

BCM

DTC B0503

RH DRL Relay Circuit

BCM

DTC B0507

LH DRL Relay Circuit

BCM

DTC B0508

LH DRL Relay Circuit

BCM

DTC B0605

BCM Internal Memory Malfunction

BCM

DTC B2403

Front Fog Lamp Switch Circuit

BCM

DTC B2408

Rear Fog Lamp Switch Circuit (Export Only)

BCM

DTC B2482

Backup Lamp Relay Circuit

BCM

DTC B2483

Backup Lamp Relay Circuit

BCM

DTC B2527

Horn Relay Circuit

BCM

DTC B2528

Horn Relay Circuit

BCM

DTC B2573

Hatch Release Switch Circuit (Short to Voltage)

BCM

DTC B2578

RF Turn Signal Monitor Circuit (Short to Voltage)

BCM

DTC B2583

LF Turn Signal Monitor Circuit (Short to Voltage)

BCM

DTC B2587

Column Lock/Unlock Drive (A)

BCM

DTC B2588

Column Lock/Unlock Drive (A)

BCM

DTC B2592

Column Lock/Unlock Drive (B)

BCM

DTC B2593

Column Lock/Unlock Drive (B)

BCM

DTC B2597

Traction Control System Switch Circuit

BCM

DTC B2721

PASS-Key® Detection Circuit

BCM

DTC B2722

PASS-Key® Detection Circuit

BCM

DTC B2723

PASS-Key® Detection Circuit

BCM

DTC B2735

PASS-Key® Programming Mode Active

BCM

DTC U1016

Loss of Communications with PCM

BCM

DTC U1096

Loss of Communications with IPC

BCM

DTC U1255

Serial Data Line Malfunction

BCM