Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
B1A7B-01 IMMOBILIZER ANTENNA (KIN/IGNM) GENERAL ELECTRICAL FAILURE
B1A7B-62 IMMOBILIZER ANTENNA (KIN/IGNM) SIGNAL COMPARE FAILURE
To diagnose the B1A7B code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
The Keyless Ignition Nod (KIN) / Ignition Node Module (IGNM) antenna supply voltage is sampled and found to be out of range of the expected value (below 8.0 or above 16.0 volts) or when the hard-wired ignition run/start line between the KIN / IGNM and Radio Frequency Hub (RF Hub) (RFH) indicates a different ignition position from the received signal of the LIN bus between the KIN / IGNM and the RFH.
Need more information on how to fix the B1A7B code? Get Access to Factory Service Manuals
Get the B1A7B code diagnosed by a professional: Find a repair shop in your area
Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1A7B code? Have you replaced any parts?
Any information is appreciated. Thanks