Is there continuity?
YES -
Repair a short to ground in the wire.?
NO -
Go to step 14.
14. Reconnect power seat control unit connector A (40P).
15. Turn the ignition switch to ON (II).
16. Measure the voltage between driver's seat wire harness 8P [14P] connector terminals No. 3 [No. 4] (+) and No. 2 [No. 3] (-).
[ ]: With seat ventilation
Without seat ventilation
With seat ventilation
Is there about 5 V?
YES -
Check for an open/short in the wire of the driver's seat subharness. If the harness is OK, replace the recline motor/position sensor.?
NO -
If there is no voltage, replace the power seat control unit. If there is battery voltage, repair a short in the wire (sensor line).?
17. Turn the ignition switch to LOCK (0).
18. Disconnect power seat control unit connector A (40P).
19. Disconnect the driver's seat wire harness 8P [14P] connector.
[ ]: With seat ventilation
20. Check for continuity between power seat control unit connector A (40P) terminals No. 15 and No. 29 and driver's seat wire harness 8P [14P]
connector terminals No. 2 [No. 3] and No. 8 [No. 12] respectively.
[ ]: With seat ventilation