GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

B0126

DTC B0126, B0409, or B0419

HVAC Control Module

B0130

DTC B0130, B0414, or B0424

HVAC Control Module

B0160

DTC B0160 or B0162

HVAC Control Module

B0162

DTC B0160 or B0162

HVAC Control Module

B0164

DTC B0164

HVAC Control Module

B0184

DTC B0184 or B0189

HVAC Control Module

B0189

DTC B0184 or B0189

HVAC Control Module

B0409

DTC B0126, B0409, or B0419

HVAC Control Module

B0414

DTC B0130, B0414, or B0424

HVAC Control Module

B0419

DTC B0126, B0409, or B0419

HVAC Control Module

B0424

DTC B0130, B0414, or B0424

HVAC Control Module

P0530

DTC P0530, P0532, or P0533

ECM

P0532

DTC P0530, P0532, or P0533

ECM

P0533

DTC P0530, P0532, or P0533

ECM

P0645

DTC P0645, P0646, P0647, P1539, or P1546

ECM

P0646

DTC P0645, P0646, P0647, P1539, or P1546

ECM

P0647

DTC P0645, P0646, P0647, P1539, or P1546

ECM

P1531

DTC P1531

HVAC Control Module

P1539

DTC P0645, P0646, P0647, P1539, or P1546

ECM

P1546

DTC P0645, P0646, P0647, P1539, or P1546

ECM