GM Service Manual Online
For 1990-2009 cars only

DTC

Description

Type

Illuminate Service Vehicle Soon

B1004

DTC B1004 Loss of Keep Alive Memory (KAM)

AMP

No

B1327

DTC B1327 Battery/Source Voltage Low

AMP

No

B1328

DTC B1328 Battery/Source Voltage High

AMP

No

B1656

DTC B1656 EEPROM Write Error

IRC, NRC

No

B1658

DTC B1658 EEPROM Checksum Error

IRC, NRC

No

B1760

DTC B1760 CD Changer Not Responding

IRC, NRC

No

B1780

DTC B1780 Theft Lock Enabled

IRC, NRC

No

B1982

DTC B1982 Device Power 1 Circuit High

IRC, NRC

No

B1983

DTC B1983 Device Power 1 Circuit Low

IRC, NRC

No

B2510

DTC B2510 Steering Wheel Controls HVAC Key Stuck in Body Control System

DIM

No

B2511

DTC B2511 Steering Wheel Controls Conv Key Stuck in Body Control System

DIM

No

B2512

DTC B2512 Strng Wheel Controls Illegal A/D Values in Body Control System

DIM

No

U1016

DTC U1016 Loss of Communications with PCM in Body Control System

AMP, IRC, NRC

No

U1064

DTC U1064 Loss of Communications with DIM in Body Control System

AMP, IRC, NRC

No

U1065

DTC U1065 Loss of Communications with IPM in Body Control System

AMP, IRC, NRC

No

U1128

DTC U1128 Loss of Communications with IRC in Body Control System

AMP

No

U1129

DTC U1129 Loss of Communications with AMP in Body Control System

IRC, NRC

No

U1144

DTC U1144 Loss of Communication with PHN in Body Control System

IRC, NRC

No

U1145

DTC U1145 Loss of Communication with NAV in Body Control System

NRC

No

U1160

DTC U1160 Loss of Communications with DDM in Body Control System

IRC, NRC

No

U1255

DTC U1255 Class 2 Initialization Error in Body Control System

AMP, IRC, NRC

No

U1300

DTC U1300 Class 2 BUS Shorted to Ground in Body Control System

AMP, IRC, NRC

No

U1301

DTC U1301 Class 2 BUS Shorted to Voltage in Body Control System

AMP, IRC, NRC

No