What causes B1269 on a Toyota?

Open or short in the communication circuit between the theft deterrent ECU and the body ECU Loose or corroded connector at the theft deterrent ECU Damaged harness on the communication circuit between the theft deterrent ECU and the body ECU Failed theft deterrent ECU Low system voltage

How do I fix B1269 on a Toyota?

Confirm the code and read freeze frame data Check battery voltage and the charging system Inspect and reseat the theft deterrent ECU connector Test the communication circuit between the theft deterrent ECU and the body ECU for opens and shorts Replace the theft deterrent ECU only after the circuit tests fail

B1269 Theft deterrent ECU communication stop. The theft deterrent ECU stops talking to the body ECU

Q: What does B1269 mean on a Toyota?

B1269. Theft deterrent ECU communication stop. The theft deterrent ECU stops talking to the body ECU. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B1269 mean on a Toyota?

B1269. Theft deterrent ECU communication stop. The theft deterrent ECU stops talking to the body ECU. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1269

Open or short in the communication circuit between the theft deterrent ECU and the body ECU
Loose or corroded connector at the theft deterrent ECU
Damaged harness on the communication circuit between the theft deterrent ECU and the body ECU
Failed theft deterrent ECU
Low system voltage

How to fix B1269

Confirm the code and read freeze frame data
Check battery voltage and the charging system
Inspect and reseat the theft deterrent ECU connector
Test the communication circuit between the theft deterrent ECU and the body ECU for opens and shorts
Replace the theft deterrent ECU only after the circuit tests fail