Checking Power Brake Booster [UU]

UU. Checking power brake booster

UUA. Fault-tracing information

Condition






- No DTCs.
- Fault is permanent.

Condition

- Faulty power brake booster overload relay.

Fault-tracing starts with UUB. Checking power brake booster.

UUB. Checking power brake booster

[UUB1]

Checking power brake booster






- Check vacuum and power brake booster overload relay condition.
- Replace power brake booster overload relay or hoses as per Power brake booster, Left hand drive (LHD) cars, replacement or Power brake booster RHD cars, replacement if necessary. Power Brake Assist

Were hoses and power brake booster OK?

Yes:
No: