Measure the voltage between 16 (pink (+)) and 32 (black (-)) contacts.
If the voltage is less than 3 V, then see item A), if not - item B).
A) Press the clutch pedal.
Measure the voltage between 16 (pink (+)) and 32 (black (-)) contacts.
If battery voltage is present, the clutch switch signal is normal.
If there is no voltage, then turn off the ignition.
Next, disconnect the 2-pin connector on the clutch switch.
Turn on the ignition.
Measure the voltage between 16 (pink (+)) and 32 (black (-)) contacts.
If there is no battery voltage, then replace the control unit and repeat the test procedure. If there is voltage, then press the clutch pedal.
Next, check for an electrical connection between the two pins on the clutch switch.
If there is an electrical connection, then the pink wire between the clutch switch and terminal 16 of the control unit should be repaired.
If there is no electrical connection, the clutch switch must be replaced.
B) Switch off the ignition.
Disconnect the 2-pin connector on the clutch switch.
Check for an electrical connection between the two pins on the clutch switch.
If there is an electrical connection, the clutch switch must be replaced.
If there is no electrical connection, the ignition must be switched on.
Next, measure the voltage between the pink terminal and ground.
If there is no voltage, then an open in the Pink wire between the clutch switch and terminal 16 of the control unit should be repaired.
If there is no battery voltage, repair the open in the Black wire between the clutch switch and point G10.