GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

B0145

DTC B0145, B0428, or B3531

Auxiliary HVAC Control Module

B0248

DTC B0248, B0263, B0408, or B0418

HVAC Control Module

B0263

DTC B0248, B0263, B0408, or B0418

HVAC Control Module

B0408

DTC B0248, B0263, B0408, or B0418

HVAC Control Module

B0414

DTC B0414, B0424, B3761, or B3770

HVAC Control Module

B0418

DTC B0248, B0263, B0408, or B0418

HVAC Control Module

B0424

DTC B0414, B0424, B3761, or B3770

HVAC Control Module

B0428

DTC B0145, B0428, or B3531

Auxiliary HVAC Control Module

B1375

DTC B1375

HVAC Control Module

B3531

DTC B0145, B0428, or B3531

Auxiliary HVAC Control Module

B3761

DTC B0414, B0424, B3761, or B3770

HVAC Control Module

B3770

DTC B0414, B0424, B3761, or B3770

HVAC Control Module

P0530

DTC P0530

PCM