GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

C0035

DTC C0035 or C0040

EBCM

C0040

DTC C0035 or C0040

EBCM

C0055

DTC C0055 or P0609

EBCM, PCM

C0110

DTC C0110

EBCM

C0161

DTC C0161

EBCM

C0201

DTC C0201

EBCM

C0228

DTC C0220-C0229

EBCM

C0245

DTC C0245

EBCM, PCM

C0550

DTC C0550

EBCM

U1000

DTC U1000 and U1255 in Data Link Communications

EBCM

U1064

DTC U1001-U1254 in Data Link Communications

EBCM

U1300

DTC U1300, U1301, or U1305 in Data Link Communications

EBCM