General Information

According to CARB regulations, every electronic power transmission system has an effect on exhaust gases. In other words, the exhaust worsens in the event of a fault.

Electronic transmission control is therefore part of the OBDII diagnosis system. Here too, exhaust-relevant faults are indicated by the Check Engine lamp (MIL), as with the ECM OBDII, Computers and Control Systems

Positive voltage is connected to the electronic control unit (pin 26) at all times so that detected and stored faults are not deleted when the ignition is switched off.

Stored faults can be deleted only with system tester 9288.

The "restricted driving program" is activated if terminal 15 (pin 55) should fail. However, the Tiptronic warning lamp does not light up.

Diagnosis cannot be started in the "restricted driving program" and if the diagnosis lines (K and L wires) are defective.

CAUTION: Never pull off or push on the control unit connectors with the ignition switched on.