B1A74
Passive Entry Antenna 4 General Electric Failure
B1A74 is an OBD-II diagnostic trouble code meaning: Passive Entry Antenna 4 General Electric Failure. Common causes: open or short circuit in antenna wiring harness, malfunction of the antenna itself. Estimated repair cost: $56–167.
Symptoms
- The passive access function does not work on a certain side of the car
- The system does not recognize the key near a certain door
- The malfunction indicator on the dashboard lights up
Causes
- Open or short circuit in antenna wiring harness
- Malfunction of the antenna itself
- Problems with the passive access system control unit
- Corrosion of contacts or connectors
How to Fix
- Check the integrity of the wiring harness to antenna 4
- Check the resistance and performance of the antenna
- Inspect connectors for corrosion or damage
- If necessary, replace the antenna or repair the wiring harness
- Check the operation of the system after repair
Related codes
FAQ
What does the B1A74 code mean?
B1A74 is an OBD-II diagnostic trouble code that indicates: Passive Entry Antenna 4 General Electric Failure
What causes a B1A74 error code?
The most common causes of B1A74 include: Open or short circuit in antenna wiring harness; Malfunction of the antenna itself; Problems with the passive access system control unit; Corrosion of contacts or connectors.
How do I fix a B1A74 diagnostic trouble code?
To fix B1A74: Check the integrity of the wiring harness to antenna 4. Check the resistance and performance of the antenna. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1A74?
Limited driving only, diagnose soon
How much does it cost to fix B1A74?
The estimated repair cost for B1A74 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat