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B2798 Toyota Code - Communication Malfunction No. 2 Immobilizer System

- Code Popularity: 32,018 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2798 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Key
  • Faulty Transponder Key Coil
  • Faulty Transponder Key ECU Assembly
⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC B2798 Toyota?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2798 Toyota 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.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B2798 Toyota Description

The Diagnostic Trouble Code (DTC) B2798 is stored when a key is inserted into the ignition key cylinder, but a communication error occurs between the key and Transponder Key ECU Assembly.

OBDII Code B2798 Toyota - Communication Malfunction No. 2 Immobilizer System - AutoCodes.com
B2798 Toyota Code - Communication Malfunction No. 2 Immobilizer System

Need More Information on the Code?

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Code B2798 Toyota comments

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