Rear Power Seat Does Not Operate With Rear Power Seat Switch

SEAT: REAR POWER SEAT CONTROL SYSTEM: Rear Power Seat does not Operate with Rear Power Seat Switch

Rear Power Seat does not Operate with Rear Power Seat Switch

DESCRIPTION

Rear power seat switch signals are sent to the position control ECU through the LIN line. The position control ECU then operates each motor.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK REAR POWER SEAT MODULE SWITCH (RIGHT / LEFT SELECTION SWITCH)
(a) When the rear power seat switch's right / left selection switch is operated, check that the indicator illuminates.
OK:
Indicator illuminates.
NG -- REPLACE REAR POWER SEAT MODULE SWITCH
OK -- Continue to next step.

2. CHECK REAR POWER SEAT CONTROL FUNCTION
(a) Operate the rear power seat switch and check that each power seat function operates normally.

Result





C -- REPLACE REAR POWER SEAT MODULE SWITCH
B -- READ VALUE USING TECHSTREAM (REAR POWER SEAT MODULE SWITCH)
A -- Continue to next step.

3. INSPECT FUSE (RL SEAT, RR SEAT)
(a) Inspect the fuse on the side that is not operating.
(1) Remove the RL SEAT fuse*1 from the luggage room junction block, or the RR SEAT fuse*2 from the passenger side junction block.
HINT:
*1: for Rear LH side
*2: for Rear RH side

(2) Measure the resistance of the fuses.
Standard resistance:






NG -- REPLACE FUSE
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU - BATTERY)




(a) Inspect the ECU on the side that is not operating.
(1) Disconnect the f24*1 or f4*2 ECU connectors.
(2) Measure the voltage according to the values in the table below.
Standard voltage:










NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POSITION CONTROL ECU
5. READ VALUE USING TECHSTREAM (REAR POWER SEAT MODULE SWITCH)
(a) Check the Data List for proper functioning of the rear power seat module switch.

Rear Console Switch





HINT: *: W/ Ottoman

OK:
On screen, each item changes between ON and OFF according to above chart.
NG -- REPLACE REAR POWER SEAT MODULE SWITCH
OK -- REPLACE POSITION CONTROL ECU