Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2000 Cadillac CateraFACTORY OEM SERVICE PROCEDURE
Body Control Module DTCS
BODY CONTROL MODULE (BCM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B1552 | Loss Of BCM Keep Alive Memory (KAM) |
| B1556 | BCM EEPROM Write Error |
| B1558 | BCM EEPROM Checksum Error |
| B1656 | Radio EEPROM Write Error |
| B1658 | Radio EEPROM Checksum Error |
| B1760 | CD Changer Not Responding |
| B1780 | Theft Lock Enabled |
| B1970 | Exterior Light Power Fault |
| B1971 | Inadvertent Power Fault |
| B1973 | High Power Control Fault |
| B1982 | Battery Voltage Too High |
| B1982 | Battery Voltage Too High |
| B1983 | Battery Voltage Too Low |
| B1983 | Battery Voltage Too Low |
| B2462 | GPS Signal Error |
| B2470 | Daytime Running Lights Fault |
| B2471 | Interior Lights Fault |
| B2472 | Low Beam Fault |
| B2473 | High Beam Fault |
| B2476 | Parking Lights Fault |
| B2476 | Cellular Phone Select Service Switch Malfunction |
| B2556 | EEPROM Error |
| B2560 | Remote Keyless Entry (RKE) Message Validation Error |
| U1300 | Class 2 Short To Ground |
| U1301 | Class 2 Short To Battery |
| U2100 | CAN-BUS Communication Malfunction |
| U2103 | Fewer Controllers On Bus Than Programmed |
| U2104 | CAN Bus Reset Counter Overrun |
| U2105 | Lost Communication With Engine Control Module (ECM) |
| U2106 | Lost Communication With Transmission Control System (TCM) |
| U2108 | Lost Communication With ABS Control System (EBTCM) |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.