No Response From ID BOX


Table of contents

B2789 TOYOTA Possible Causes

  • Faulty ID Code Box (Immobilizer Code ECU)
  • ID Code Box (Immobilizer Code ECU) harness is open or shorted
  • ID Code Box (Immobilizer Code ECU) circuit poor electrical connection
  • Faulty Certification ECU (Smart Key ECU Assembly)

How do I fix code B2789 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 B2789 TOYOTA code

  The cost of diagnosing the B2789 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.

Possible Symptoms

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

B2789 TOYOTA Description

  This Diagnostic Trouble Code (DTC) is stored when Local Interconnect Network (LIN) communication between the Certification ECU (Smart Key ECU Assembly) and ID Code Box (Immobilizer Code ECU) stops for 10 seconds or more.

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