B1A77
Remote Start Antenna Circuit Low
B1A77 is an OBD-II diagnostic trouble code meaning: Remote Start Antenna Circuit Low. Common causes: remote start antenna malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Remote engine start does not work
- Reduced range of the key fob
- Error indication on the dashboard
Causes
- Remote start antenna malfunction
- Open or short circuit in wiring harness
- Poor contact in connectors
- Remote start module malfunction
- Antenna power problems
How to Fix
- Check the integrity of the antenna and its fastening
- Inspect the wiring harness for damage
- Check connections and contacts in connectors
- Measure the resistance and voltage in the antenna circuit
- If necessary, replace the antenna or remote start module
Related codes
FAQ
What does the B1A77 code mean?
B1A77 is an OBD-II diagnostic trouble code that indicates: Remote Start Antenna Circuit Low
What causes a B1A77 error code?
The most common causes of B1A77 include: Remote start antenna malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Remote start module malfunction.
How do I fix a B1A77 diagnostic trouble code?
To fix B1A77: Check the integrity of the antenna and its fastening. Inspect the wiring harness for damage. Check connections and contacts in connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1A77?
Yes, but get it checked soon
How much does it cost to fix B1A77?
The estimated repair cost for B1A77 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat