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OBD - Onboard diagnostics |
| Bosch (Knorr) ABS/ASR EU 12 6S/6K |
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| Read out fault memory |
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| Prerequisites: |
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- Vehicle at standstill
- Turn system selector switch to ABS position (see electrical key)
- Drive switch off and on again = Reset (drive switch to step 2, drive position)
- For vehicles with ASR press the brake pedal once. This turns the yellow ASR info lights off.
- Wait at least two seconds.
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| Fault output via red ABS warning light: |
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- Hold down check key (red) for at least two seconds.
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| Notes: |
- The fault output, in the form of a flash code, begins one second after the check key is released. Each fault is output in two blocks which are separated from one another by a pause (approx. 1.5 seconds). Flashing pauses for approximately 4.5 seconds before the next fault is output.
- If a number of faults is stored, then these will be output in the reverse order in which they occurred, (the most recent fault is output first).
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| An example of the flashing sequence structure (red ABS warning light): |
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| 0 |
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ABS warning light off |
| 1 |
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ABS warning light on |
| 2 |
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Hold down the check key for at least 2 seconds |
| 3 |
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ABS light off for one second (pause until the first block) |
| 4 |
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first number of the first fault (block 1) |
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| 5 |
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1.5 seconds pause |
| 6 |
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second number of the first fault (block 2) |
| 7 |
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4.5 seconds pause |
| 8 |
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next error (if applicable) |
| This example shows a fault code 4-2 for the first fault output. |
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| Clear fault memory |
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- Attention: Remove all test and measurement devices!
- With the drive switch off, press the check key and hold it down.
- Switch on the drive switch (step 2, drive position),
- release the check key after at least two seconds.
- Leave the drive switch switched on for at least five seconds.
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