The system shows fault codes using flash codes. Fault codes are read out in the diagnostics socket by bridging 2 pins and connecting these in series with a 3rd using a test light.
To enable read-out of fault codes:
- Connect the positive (+) side of the test light to pin 1.
- Connect the negative (-) side of the test light to pin 4.
- Turn on the ignition (+15).
- Bridge pin 4 and 7 for at least 2 seconds.
- remove the bridging.
- Count flash pulses from the test light.
The first block gives information about the system configuration.
The second block gives information about where the fault is.
Block 1 | Block 2 |
Flash pulses | Configuration | Flash pulses | Fault |
2 | 2S/2M | 1 | ABS OK |
2 | Speed sensor DFA | ||
3 | Speed sensor DFB | ||
8 | Solenoid valve MVA | ||
9 | Solenoid valve MVB | ||
11 | Output ground valve A/B (GVR) Input ground control unit (GNDL) | ||
12 | Power supply | ||
13 | universal output | ||
14 | Internal error control unit |
After the fault has been solved, erase the fault codes using the following procedure:
- Ignition off.
- Bridge pin 4 and 7.
- Turn on the ignition (+15).
- Wait for at least 2 seconds.
- remove the bridging.
- If the test light turns on, the fault code has been erased.
- Read out the fault codes again to check if there are more fault codes in the system.