What causes B1271 on a Toyota?

Open or short in the communication circuit between the meter ECU and the gateway ECU Loose or corroded connector at the combination meter assembly Damaged harness on the communication circuit between the meter ECU and the gateway ECU Failed combination meter assembly Low system voltage

How do I fix B1271 on a Toyota?

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

B1271 Combination meter ECU communication stop

Q: What does B1271 mean on a Toyota?

B1271. Combination meter ECU communication stop. The meter assembly drops off the bus for more than 10 seconds. 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 B1271 mean on a Toyota?

B1271. Combination meter ECU communication stop. The meter assembly drops off the bus for more than 10 seconds. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1271

Open or short in the communication circuit between the meter ECU and the gateway ECU
Loose or corroded connector at the combination meter assembly
Damaged harness on the communication circuit between the meter ECU and the gateway ECU
Failed combination meter assembly
Low system voltage

How to fix B1271

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