Engine-Codes - Toyota - B158A TOYOTA

B158A TOYOTA - Extension Module Noise Adjustment Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B158A TOYOTA Possible Causes

  • Faulty Radio and Display Receiver Assembly
  • Radio and Display Receiver Assembly harness is open or shorted
  • Radio and Display Receiver Assembly circuit poor electrical connection

How do I fix code B158A 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 B158A TOYOTA code

Labor: 1.0

The cost of diagnosing the B158A TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B158A TOYOTA Meaning

This Diagnostic Trouble Code (DTC) is stored when a video or audio signal is interrupted due to battery voltage input to the Radio and Display Receiver Assembly dropping temporarily.

B158A TOYOTA More Information

Need more information on how to fix the B158A TOYOTA code?
Get Access to Factory Service Manuals

Need more help?

Get the B158a Toyota code diagnosed by a professional: Find a repair shop in your area