Diagnosis
| Diagnosis |
The motronic control module's possibility of communication with the diagnostic tool goes via pin 55 (K-lead) and pin 13 (L-lead).
The communication signal on the K-lead is bi-directional and sends both input and output signals.
With the ignition in the drive position the voltage on pin 55 is approx. 8 Volts and Batt+ when the diagnostic tool is connected.
On pin 13 the voltage is 0 volts regardless of whether the ignition is ON or OFF (the diagnostic tool grounds pin 13 when the L- lead is used for activating the system functions).
The diagnostic socket is positioned under the dashboard on the driver's side.
| Flash codes |
For activating the flash codes the connection (L-lead) is used between the control module pin 13 and the diagnostic socket.
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