GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

B1770

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1775

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1780

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1785

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1790

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1805

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B1825

DTC B1825

DSM

B1850

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B1860

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B1960

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2355

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2365

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2375

DTC B1850, B1860, B1960, B2355, B2365, or B2375

DSM

B2415

DTC B1770, B1775, B1780, B1785, B1790, B1805, or B2415

DSM

B2425

DTC B2425 or B2430

DSM

B2430

DTC B2425 or B2430

DSM

B2435

DTC B2435 or B2440

DSM

B2440

DTC B2435 or B2440

DSM

B3941

DTC B3941

DSM

B3962

DTC B3962

DSM