DTC table
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
| DTC code |
DTC text |
Corrective action |
| SAE |
V.A.G |
|
|
| P1427 |
17835 |
Activation of vacuum pump for brake system, short to positive |
|
| P1428 |
17836 |
Activation of vacuum pump for brake system, short to earth |
- Trace and repair open circuit or short.
|
| P1429 |
17837 |
Activation of vacuum pump for brake system, open circuit |
|
| P1479 |
17887 |
Vacuum system for brakes, mechanical malfunction |
- Perform final control diagnosis in engine control module to determine whether vacuum pump is running or is being activated.
- Check hoses leading to pump and those leading from pump to brake booster unit.
- Perform short trip test of engine control module (Basic setting; Display group 8; ignition switched on and selector lever in position "P" or "N").
|
| DTC code |
DTC text |
Corrective action |
| SAE |
V.A.G |
|
|
| P1912 |
18320 |
Brake booster pressure sensor G294, open circuit/short to positive |
|
| P1913 |
18321 |
Brake booster pressure sensor G294, open circuit/short to earth |
- Trace and repair open circuit or short
|
| P1914 |
18322 |
Brake booster pressure sensor G294, implausible signal |
|