Electronic Control Unit
Table of contents
B1000 GMC Possible Causes
- Faulty Electronic Control Unit (ECU)
- Electronic Control Unit (ECU) harness is open or shorted
- Electronic Control Unit (ECU) circuit poor electrical connection
How do I fix code B1000 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- B1000 00 Electronic Control Unit (ECU) Performance No Additional Information Available
- B1000 04 Side Object Detection Performance – RAM Failure
- B1000 08 Electronic Control Unit (ECU) Performance Signal Invalid
- B1000 12 Electronic Control Unit (ECU) Performance Below Minimum Threshold
- B1000 31 Electronic Control Unit (ECU) General Checksum Problem
- B1000 33 Electronic Control Unit (ECU) Performance Special Memory Failure
- B1000 34 Electronic Control Unit (ECU) Performance RAM Integrity
- B1000 35 Electronic Control Unit (ECU) Performance ROM Integrity
- B1000 36 Electronic Control Unit (ECU) Performance EEPROM Integrity
- B1000 37 Electronic Control Unit (ECU) Performance Watchdog / Safety Failure
- B1000 38 Electronic Control Unit (ECU) Performance Supervision Software Failure
- B1000 39 Electronic Control Unit (ECU) Performance Internal Electronic Failure
- B1000 43 Electronic Control Unit (ECU) Performance EEPROM Error
- B1000 46 Side Object Detection Performance – Invalid Configuration
- B1000 56 Electronic Control Unit (ECU) Performance Allowable Number of Transitions/ Events Exceeded
- B1000 57 Electronic Control Unit (ECU) Performance
- B1000 73 Electronic Control Unit (ECU) Performance Parity Error
- B1000 0F Electronic Control Unit (ECU) Performance Erratic
- B1000 2B Electronic Control Unit (ECU) Performance Missing Reference
- B1000 2C Electronic Control Unit Performance Reserved
- B1000 3B Electronic Control Unit (ECU) Performance Internal Self Test Failed
- B1000 3C Electronic Control Unit (ECU) Performance Internal Communications Failure
- B1000 4A Side Object Detection Performance – PROM Checksum Error
- B1000 F0 Side Object Detection RF Transmit Chain Failed
- B1000 F1 Side Object Detection RF Receive Chain Failed
- B1000 F2 Side Object Detection Frequency Calibration Failure
- B1000 F3 Side Object Detection Inter-Processor Communication Failed
Cost of diagnosing the B1000 GMC code
The cost of diagnosing the B1000 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1000 GMC Description
The internal fault detection is handled inside the Electronic Control Unit (ECU). No external circuits are involved.