Each memorized defect corresponds to a specific two-digit code. This code is indicated by longer or shorter bursts of the voltmeter needle. Longer ejections indicate the first digit of the code, and shorter ones indicate the second digit. There is a short pause between bursts. When using an LED probe, the LED flashes accordingly.
Attention: The fault memory is erased when the battery mass is disconnected or the control unit connector is removed for more than 10 seconds.
Connect a voltmeter to terminals 1 (plus, +) and 12 (weight, -) diagnostic connector. The diagnostic connector is located on the left in the footwell next to the fuse box.
Turn on the ignition.
The voltmeter needle should deviate briefly.
Record the number of longer deviations as the first digit of the code. Then write down the number of short-term deviations as the second bit of the code.
If the voltmeter needle deviates only once, without returning to zero, then there is a defect in the control unit processor.
In the absence of longer deviations, there are no stored failures.
Example: The arrow of the device deviated twice for a long time and three times for a short time, which gives a failure code 23. Failure 23 is stored in the absence of a voltage signal from the TDC sensor of cylinder 1 to the control unit.