B2796
No Communication In Immobilizer System
B2796 is an OBD-II diagnostic trouble code meaning: No Communication In Immobilizer System. Common causes: broken or damaged wiring harness, poor contact in the immobilizer connectors. Estimated repair cost: $56–222.
Symptoms
- Engine won't start
- The immobilizer indicator is flashing
- Difficulty starting the engine
Causes
- Broken or damaged wiring harness
- Poor contact in the immobilizer connectors
- Immobilizer module malfunction
- Low ignition key battery
- Problems with the engine ECU
How to Fix
- Check the condition of the wiring harness and connectors
- Check the power supply and grounding of the immobilizer
- Read additional fault codes using a scanner
- Check the battery in the ignition key
- If necessary, reprogram or replace the immobilizer module
Related codes
FAQ
What does the B2796 code mean?
B2796 is an OBD-II diagnostic trouble code that indicates: No Communication In Immobilizer System
What causes a B2796 error code?
The most common causes of B2796 include: Broken or damaged wiring harness; Poor contact in the immobilizer connectors; Immobilizer module malfunction; Low ignition key battery.
How do I fix a B2796 diagnostic trouble code?
To fix B2796: Check the condition of the wiring harness and connectors. Check the power supply and grounding of the immobilizer. Read additional fault codes using a scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2796?
Yes, but get it checked soon
How much does it cost to fix B2796?
The estimated repair cost for B2796 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat