Checking Non-Return Valve to Power Brake Booster [TT]

TT. Checking non-return valve to power brake booster

TTA. Fault-tracing information

Condition






- No DTCs.
- Fault is permanent.

Condition

- Faulty non-return valve (1) to power brake booster overload relay.

Fault-tracing starts with [TTB]. Checking non-return valve to power brake booster.

TTB. Checking non-return valve to power brake booster

[TTB1]

Checking non-return valve to power brake booster






- Check non-return valve (1) for proper operation Does non-return valve function properly?

Yes: Fault not found
No: TT62

[TTB2]

Replacement of component






- Replace non-return valve

Then continue with: