AutoCodes – Toyota – B15C6 Toyota

B15C6 Toyota Code - Ignition Switch Signal Malfunction

Quick Answer

If vehicle movement (10 km/h (6 mph) or more for 10 seconds) is detected based on the location data sent from the Radio Receiver Assembly even when the Data Communication Module (DCM) (Telematics transceiver) detects that the ignition switch is off, this Diagnostic Trouble Code (DTC) will be stored. Common causes include Faulty Data Communication Module (DCM) (Telematics transceiver), DCM (Telematics transceiver) harness is open or shorted, DCM (Telematics transceiver) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B15C6 Toyota indicates Ignition Switch Signal Malfunction.
Common causes: Common causes include Faulty Data Communication Module (DCM) (Telematics transceiver), DCM (Telematics transceiver) harness is open or shorted, DCM (Telematics transceiver) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,529

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B15C6 Toyota Description

OBDII Code B15C6 Toyota - Ignition Switch Signal Malfunction - AutoCodes.com — B15C6 Toyota Code - Ignition Switch Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC B15C6 Toyota?

Faulty Data Communication Module (DCM) (Telematics transceiver)
DCM (Telematics transceiver) harness is open or shorted
DCM (Telematics transceiver) circuit poor electrical connection

How to Fix the DTC B15C6 Toyota?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B15C6 Toyota code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B15C6 Toyota Code

1. What are common symptoms of the B15C6 OBDII code in a Toyota related to Ignition Switch Signal Malfunction?

- Common symptoms include issues with starting the vehicle, intermittent power loss, and problems with the engine stalling.

2. What are the potential causes of the B15C6 OBDII code indicating Ignition Switch Signal Malfunction in a Toyota?

- Causes may include a faulty ignition switch, damaged wiring or connectors related to the ignition system, or a problem with the ignition control module.

3. How can I diagnose the B15C6 code related to Ignition Switch Signal Malfunction in my Toyota?

- Diagnosing the issue involves using an OBDII scanner to read the code, checking the ignition switch for proper operation, inspecting wiring for damage, and testing related components for faults.

4. Can driving with the B15C6 OBDII code for Ignition Switch Signal Malfunction in a Toyota cause further damage?

- Continuing to drive with this code may lead to more severe issues such as complete engine failure or safety hazards due to unexpected power loss while driving.

5. How can I repair the B15C6 OBDII code for Ignition Switch Signal Malfunction in my Toyota?

- Repair options may include replacing the ignition switch, repairing or replacing damaged wiring, or addressing any faults in the ignition control module as needed.

6. Is it possible to reset the B15C6 OBDII code related to Ignition Switch Signal Malfunction in a Toyota without fixing the underlying issue?

- While clearing the code temporarily may be possible, it is not recommended as the underlying problem causing the code will persist and could lead to further issues.

7. Are there any DIY tips for addressing the B15C6 OBDII code indicating Ignition Switch Signal Malfunction in my Toyota?

- DIY tips may include checking for loose connections, inspecting the ignition switch for visible damage, and ensuring proper grounding of the ignition system components.

8. How long does it typically take to repair the B15C6 OBDII code for Ignition Switch Signal Malfunction in a Toyota?

- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and fix the problem properly.

9. Can I prevent the B15C6 OBDII code related to Ignition Switch Signal Malfunction from occurring in my Toyota in the future?

- Regular maintenance checks, prompt repair of any ignition system issues, and avoiding harsh driving conditions can help prevent this code from reoccurring in the future.

10. Is it safe to continue driving my Toyota with the B15C6 OBDII code indicating Ignition Switch Signal Malfunction?

- It is not advisable to continue driving the vehicle with this code as it can lead to potential safety hazards and further damage to the engine or electrical system. It is best to address the issue promptly.