Front Power Seat Control System (W/ Seat Position Memory System) - Front Power Seat Does Not Operate With Front Power Seat Switch

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - SEAT

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (FR P/SEAT LH, FR P/SEAT RH, ECU-B2)

CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH - BATTERY AND BODY GROUND)

FRONT POWER SEAT CONTROL SYSTEM (w/ Seat Position Memory System) - Front Power Seat does not Operate with Front Power Seat Switch

DESCRIPTION

When a signal is input into the position control ECU, the ECU manages the signals received from the front power seat switch LH, and operates each motor. When 2 or more signals are input, the motors only operate when the signals are from the slide switch and reclining switch.


WIRING DIAGRAM

Front Power Seat Control System (W/ Seat Position Memory System) - Front Power Seat Does Not Operate With Front Power Seat Switch. SEAT. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

1.INSPECT FUSE (FR P/SEAT LH, FR P/SEAT RH, ECU-B2)

Remove the FR P/SEAT LH*1, FR P/SEAT RH*2 and ECU-B2 fuses from the main body ECU.

  • HINT:
  • *1: for LHD
  • *2: for RHD

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • for LHD
    Tester ConnectionConditionSpecified Condition
    FR P/SEAT LH fuseAlwaysBelow 1 Ω
    ECU-B2 fuseAlwaysBelow 1 Ω
  • for RHD
    Tester ConnectionConditionSpecified Condition
    FR P/SEAT RH fuseAlwaysBelow 1 Ω
    ECU-B2 fuseAlwaysBelow 1 Ω
NG
REPLACE FUSE
OK
2.CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH - BATTERY AND BODY GROUND)
Front Power Seat Control System (W/ Seat Position Memory System) - Front Power Seat Does Not Operate With Front Power Seat Switch. SEAT. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the c14*1, c15*1 or c26*2, c27*2 switch connectors.

  • HINT:
  • *1: for LHD
  • *2: for RHD

Measure the voltage according to the value(s) in the table below.

  • Standard Voltage:
  • for LHD
    Tester ConnectionConditionSpecified Condition
    c14-5 (+B) - Body groundAlways11 to 14 V
    c15-8 (SYSB) - Body groundAlways11 to 14 V
  • for RHD
    Tester ConnectionConditionSpecified Condition
    c26-5 (+B) - Body groundAlways11 to 14 V
    c27-8 (SYSB) - Body groundAlways11 to 14 V

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • for LHD
    Tester ConnectionConditionSpecified Condition
    c14-1 (GND) - Body groundAlwaysBelow 1 Ω
  • for RHD
    Tester ConnectionConditionSpecified Condition
    c26-1 (GND) - Body groundAlwaysBelow 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE POSITION CONTROL ECU AND SWITCH ()