15. Emergency inspection procedure
Some quick inspection procedures are described below.
1. Operation input inspection.
The inspection should be performed with the cable to the connector S1 disconnected, the relay p.c.board connected, and the
power turned on.
Jump the S1s No. 10 pin and the pins No. 1 to No. 8 one by one. If the p.c.board responds, the p.c.board is operating normally.
In this case, inspect the SW.
2. Headrest connector inspection.
The inspection should be performed with the cable to the connector S2 disconnected, the relay p.c.board connected, and the
power turned on.
Jump the S2s No. 6 pin and the pins No. 1 to No. 4 one by one. If the p.c.board responds, the p.c.board is operating normally.
In this case, inspect the SW.
3. Inspection of the relay p.c.board.
The inspection should be performed using the harness connector, with the cable to the S10 connector disconnected.
Jump the S10s cable connector No. 10 and pins No. 1 to No. 9 using wire and solder paste and check the relay sound, motor, and
solenoid valve operation. The jump to the No.1 pin should be checked momentarily because the pin corresponds to the motor.
4. Always check the potentiometer voltage. Check the voltage over the entire stroke range for smooth variation.
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