GM Service Manual Online
For 1990-2009 cars only

DTC

Description

B0603

DTC B0603 BCM Internal Memory Malfunction

B0605

DTC B0605 BCM Internal Memory Malfunction

B0608

DTC B0608 BCM Power Moding Error

B0807

DTC B0807 Door Lock Battery Feed Circuit Open

B0812

DTC B0812 Courtesy Lights Battery Feed CKT Open

B0823

DTC B0823 Door Lock Actuator Ground Feed CKT Open

B0828

DTC B0828 Theater Dimming Ground Circuit Open

B1802

DTC B1802 Courtesy Lights CKT Shorted to Ground

B2202

DTC B2202 Driver Door Lock CKT Open/Shorted to GND

B2203

DTC B2203 Driver Door Unlock CKT Shorted to B+

B2403

DTC B2403 Front Fog Lamp Switch Circuit

B2417

DTC B2417 DRL Circuit Open or Shorted to Ground

B2418

DTC B2418 DRL Circuit Shorted to B+

B2452

DTC B2452 Theater Dimming 1 Open or Shorted to GND

B2453

DTC B2453 Theater Dimming 1 Shorted to B+

B2457

DTC B2457 Theater Dimming 2 Open or Shorted to GND

B2458

DTC B2458 Theater Dimming 2 Shorted to B+

B2528

DTC B2528 Horn Relay Circuit Shorted to B+

B2712

DTC B2712 Passlock Power Output Short to Ground

B2713

DTC B2713 Passlock Power Output Short to Battery

B2721

DTC B2721 Passlock Data Incorrect

B2722

DTC B2722 Passlock Data Shorted to Ground

B2723

DTC B2723 Passlock Data Open/Shorted to Battery

B2735

DTC B2735 Passlock Controller in Learn Mode

B2737

DTC B2737 Passlock Data Indicates Tamper

B2739

DTC B2739 Key In Ignition Fault

B2802

DTC B2802 RFA Link Circuit Shorted to Ground

B2803

DTC B2803 RFA Link Circuit Shorted to B+

B2805

DTC B2805 RFA Programming Message Not Received

B2806

DTC B2806 RFA Link Parity Error

B2947

DTC B2947 Passlock Power Output Short to Ground

B2948

DTC B2948 Passlock Power Output Short to Battery

B2957

DTC B2957 Passlock Data Shorted to Ground

B2958

DTC B2958 Passlock Data Open/Shorted to Battery

B2960

DTC B2960 Passlock Data Incorrect

B3031

DTC B3031 Passlock Controller in Learn Mode

B3033

DTC B3033 Passlock Data Indicates Tamper