What causes B1497 on a Toyota?

Open or short in the air conditioning bus circuit Loose or corroded servo connector Damaged air conditioning harness Failed damper servomotor Failed A/C amplifier assembly

How do I fix B1497 on a Toyota?

Confirm the code and run the A/C servo check Inspect and reseat each servo connector Test the air conditioning bus circuit for opens and shorts Check each servo for a short that pulls the bus down Replace the failed part only after tests fail

B1497 A/C bus communication fault

Q: What does B1497 mean on a Toyota?

B1497. A/C bus communication fault. The A/C amplifier loses communication with one or more damper servos on the air conditioning harness. 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 B1497 mean on a Toyota?

B1497. A/C bus communication fault. The A/C amplifier loses communication with one or more damper servos on the air conditioning harness. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1497

Open or short in the air conditioning bus circuit
Loose or corroded servo connector
Damaged air conditioning harness
Failed damper servomotor
Failed A/C amplifier assembly

How to fix B1497

Confirm the code and run the A/C servo check
Inspect and reseat each servo connector
Test the air conditioning bus circuit for opens and shorts
Check each servo for a short that pulls the bus down
Replace the failed part only after tests fail