XJ-6 (X300) L6-4.0L (AJ16) (1996)
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.
5.
Seat lumbar pump
a. Check pneumatic circuit is intact and free from obstructions or blockages. Check lumbar pad is not damaged or punctured.
b. Examine harness wiring, checking continuity between connector pins as follows:
Switch pack
Pump Unit
SCM
Pin 1
Pin 2
Pin 9 (connector A1)
Pin 11
Pin 3
Pin 3
Pin 1
c. Test pump resistance between unit pins 1 and 2; a value of approximately 2 Ohm should be recorded. Check operation of pressure switch
by attempting to continually inflate the lumbar pad. On achieving maximum pad pressure the pressure switch should operate and switch off
the pump supply.
d. Test solenoid valve resistance between unit pins 3 and 2; a value of approximately 2 Ohm should be recorded.