AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Toyota - B1242 2014 Toyota RAV4

B1242 2014 Toyota RAV4 Code - Wireless Door Lock Tuner Circuit Malfunction

- Code Popularity: 179 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC B1242 2014 Toyota RAV4?

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 Door Control Receiver
  • Door Control Receiver harness is open or shorted
  • Door Control Receiver circuit poor electrical connection
  • Faulty Certification ECU (Smart Key ECU Assembly)
⚠ Does your Toyota have Safety Recalls? → Check here

How to Fix the DTC B1242 2014 Toyota RAV4?

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.

Search for B1242 2014 Toyota RAV4 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1242 2014 Toyota RAV4 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 B1242 2014 Toyota RAV4 Description

The Door Control Receiver is used to receive radio waves related to the entry functions of the electrical key transmitter sub-assembly. The certification ECU (smart key ECU assembly) decodes the requested electrical key transmitter sub-assembly operation by identifying a key code based on the radio waves received via the door control receiver. The door control receiver receives a signal from the electrical key transmitter sub-assembly and sends signals to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly). (For example, if a door lock operation is requested, the certification ECU [smart key ECU assembly] sends a door lock command to the main body ECU [multiplex network body ECU]).

OBDII Code B1242 2014 Toyota RAV4 - Wireless Door Lock Tuner Circuit Malfunction - AutoCodes.com
B1242 2014 Toyota RAV4 Code - Wireless Door Lock Tuner Circuit Malfunction

Need More Information on the Code?

Need more information on how to fix the B1242 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1242 2014 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

Code B1242 2014 Toyota RAV4 comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1242 2014 Toyota RAV4 code? Have you replaced any parts?
Any information is appreciated. Thanks