GM Service Manual Online
For 1990-2009 cars only

DTC Number/Description

Module

DTC B1007 EEPROM Write Error in Body Control Systems

MSM

DTC B1009 EEPROM Checksum Error in Body Control Systems

MSM

DTC B1327 Device Power Circuit Low in Engine Electrical

MSM

DTC B1328 Device Power Circuit High in Engine Electrical

MSM

DTC B1735 Driver Seat Front Up Switch CKT Malf

MSM

DTC B1740 Driver Seat Front Down Switch CKT Malf

MSM

DTC B1745 Driver Seat Rear Up Switch CKT Malf

MSM

DTC B1750 Driver Seat Rear Down Switch CKT Malf

MSM

DTC B1755 Driver Seat Asm Forward Switch CKT Malf

MSM

DTC B1760 Driver Seat Asm Rearward Switch CKT Malf

MSM

DTC B1815 Driver Recline Forward Switch CKT Malf

MSM

DTC B1820 Driver Recline Rearward Switch CKT Malf

MSM

DTC B1825 Driver Recline Sensor CKT Malfunction

MSM

DTC B1830 Driver Lumbar Forward Switch CKT Malf

MSM

DTC B1835 Driver Lumbar Rearward Switch CKT Malf

MSM

DTC B1840 Driver Lumbar Up Switch CKT Malf

MSM

DTC B1840 Driver Lumbar Up Switch CKT Malf

MSM

DTC B1845 Driver Lumbar Down Switch CKT Malf

MSM

DTC B1845 Driver Lumbar Down Switch CKT Malf

MSM

DTC B1850 Driver Lumbar Horiz Sensor CKT Malf

MSM

DTC B1860 Driver Lumbar Vert Sensor CKT Malf

MSM

DTC B1860 Driver Lumbar Vert Sensor CKT Malf

MSM

DTC B1870 Driver Belt Tower Up Switch Circuit Malfunction in Seat Belts

MSM

DTC B1875 Driver Belt Tower Down Switch Circuit Malfunction in Seat Belts

MSM

DTC B1900 Driver Belt Tower Vertical Sensor Malfunction in Seat Belts

MSM

DTC B1913 Heated Seat Switch - Mode Input Shorted to Battery

Doors

DTC B1918 Heated Seat Switch - Temperature Input Shorted to Battery

Doors

DTC B2355 Driver Front Vertical Sensor Malf

MSM

DTC B2365 Driver Rear Vertical Sensor Malf

MSM

DTC B2375 Driver Seat Asm Horiz Sensor CKT Malf

MSM

DTC B2757 Driver Memory 1 Select Switch CKT Low

Doors

DTC B2762 Driver Memory 2 Select Switch CKT Low

Doors

DTC B2767 Memory Set Switch Failed Low

Doors

DTC B2772 Driver Memory Exit Switch Circuit Low

Doors

DTC U1000 Loss of PCM Class 2 Serial Data Communication

Refer to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications.

MSM

DTC U1305 Class 2 Short to Ground/Battery.

Refer to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications.

MSM