Seat Motor Position Potentiometers

4.
a. Examine wiring harness, checking continuity between SCM Connector A2 and motor unit connector pins as follows:

SCM Motor potentiometer Unit Pin
Pin 1 All units +ve 5
Pin 2 All units -ve 6
Pin 3 Headrest position 3
Pin 4 Squab position 3
Pin 5 Seat fore/aft position 3
Pin 6 Seat rear raise/lower position 3
Pin 7 Seat front raise/lower position 3

Seat Motor Potentiometers, Fig.1:

b. Check resistance of each motor position potentiometer pins 5 and 6; a value of approximately 10 K Ohm should be indicated.
c. Check resistance between motor position potentiometer pin 2 and both pins 5 and 6. Values in the region of 100 Ohm-9.9 K Ohm should be recorded, dependent upon motor position.