What causes B1268 on a Toyota?

Open or short in the back-up communication bus Loose or corroded connector at the back-up communication bus Damaged harness on the back-up communication bus Failed back-up communication bus Low system voltage

How do I fix B1268 on a Toyota?

Confirm the code and read freeze frame data Check battery voltage and the charging system Inspect and reseat the back-up communication bus connector Test the back-up communication bus for opens and shorts Replace the back-up communication bus only after the circuit tests fail

B1268 Back-up communication bus failure

Q: What does B1268 mean on a Toyota?

B1268. Back-up communication bus failure. A battery or ground short takes down the back-up bus. 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 B1268 mean on a Toyota?

B1268. Back-up communication bus failure. A battery or ground short takes down the back-up bus. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1268

Open or short in the back-up communication bus
Loose or corroded connector at the back-up communication bus
Damaged harness on the back-up communication bus
Failed back-up communication bus
Low system voltage

How to fix B1268

Confirm the code and read freeze frame data
Check battery voltage and the charging system
Inspect and reseat the back-up communication bus connector
Test the back-up communication bus for opens and shorts
Replace the back-up communication bus only after the circuit tests fail