Communication Malfunction No. 1 Immobilizer System
Table of contents
B2797 TOYOTA Possible Causes
- Faulty Key
- Faulty transponder key amplifier
- Faulty transponder key ECU assembly
- transponder key amplifier wire harness
How do I fix code B2797 TOYOTA?
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.
Cost of diagnosing the B2797 TOYOTA code
The cost of diagnosing the B2797 TOYOTA 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.
When is the code detected
Keys are positioned too close to each other, or noise occurred in communication line
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2797 TOYOTA Description
This Diagnostic Trouble Code (DTC) is output when a communication error occurs between the key slot and transponder key Electronic Control Unit (ECU). A possible reason for the communication error is that noise is occurring on the communication line.