GM Service Manual Online
For 1990-2009 cars only

DTC

Definition

B0432

Rear Defogger Relay Circuit

B0433

Rear Defogger Relay Circuit

B0502

RH DRL Relay Circuit

B0503

RH DRL Relay Circuit

B0507

LH DRL Relay Circuit

B0508

LH DRL Relay Circuit

B0605

BCM Internal Memory Malfunction

B0844

BCM Temporarily Inhibit ABS

B2403

Front Fog Lamp Switch Circuit

B2408

Rear Fog Lamp Switch Circuit (Export Only)

B2482

Backup Lamp Relay Circuit

B2483

Backup Lamp Relay Circuit

B2527

Horn Relay Circuit

B2528

Horn Relay Circuit

B2573

Hatch Release Switch Circuit (Short to Voltage)

B2578

RF Turn Signal Monitor Circuit (Short to Voltage)

B2583

LF Turn Signal Monitor Circuit (Short to Voltage)

B2587

Column Lock/Unlock Drive (A)

B2588

Column Lock/Unlock Drive (A)

B2592

Column Lock/Unlock Drive (B)

B2593

Column Lock/Unlock Drive (B)

B2597

Traction Control System Switch Circuit

B2721

PASS-Key® Detection Circuit

B2722

PASS-Key® Detection Circuit

B2723

PASS-Key® Detection Circuit

B2735

PASS-Key® Programming Mode Active

U1016

Loss of Communications with PCM

U1096

Loss of Communications with IPC

U1255

Serial Data Line Malfunction