18. Disconnect power seat control unit connector A (40P).
19. Disconnect the rear up-down position sensor 4P connector.
20. Check for continuity between power seat control unit connector A (40P) terminals No. 15 and No. 29 and rear up-down position sensor 4P
connector terminals No. 1 and No. 3 respectively.
Is there continuity?
YES -
Go to step 21.
NO -
Repair an open in the wire.?
21. Disconnect the 4P connector from the slide position sensor and the front up-down position sensor, then disconnect the driver's seat wire
harness 8P [14P] connector.
[ ]: With seat ventilation
22. Check for continuity between body ground and rear up-down position sensor 4P connector terminal No. 1.
Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Go to step 23.
23. Reconnect power seat control unit connector A (40P).
24. Turn the ignition switch to ON (II).
25. Measure the voltage between power seat control unit connector A (40P) terminals No. 15 and No. 29.
