On Board Diagnostic (OBD), Functional Description

On Board Diagnostic (OBD), Functional Description

It is an independent system and has the On Board Diagnostic (OBD) address word 36 "Seat adjustment driver's side".

The seat adjustment control module -J136- is located under the driver's seat and is connected to the convenience system via the CAN data bus.

It is equipped with a DTC memory. The On Board Diagnostic (OBD) connection is located under the driver's knee bar to left of the steering wheel.

The control module detects malfunctions in the system and stores them in a permanent memory.
To commence troubleshooting, initiate self-diagnosis and retrieve the stored information with the V.A.G 1551 scan tool.

V.A.G 1552 System tester may also be used.
The malfunction information displayed is used to refer to a DTC table with notes on the possible causes for directed repair measures.

Malfunctions which can be attributed to a temporary open circuit in the wiring or a loose contact, will also be stored. These malfunctions will be displayed as sporadic DTCs "SP".

The individual operating functions are described.