Fold Seat Switch Circuit

SEAT: REAR POWER SEAT CONTROL SYSTEM: Fold Seat Switch Circuit
- Fold Seat Switch Circuit

DESCRIPTION

When the fold seat switch is operated, a switch operation signal is sent to the fold seat control ECU. The ECU receives switch operation signals from each switch and activates the No. 1 power seat motor and No. 2 power seat motor.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOLD SEAT CONTROL ECU (FOLD SEAT SWITCH SIGNAL)

(a) Check the No. 1 fold seat switch signal.

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





Standard Voltage:

LH Side





RH Side





(b) Check No. 2 fold seat switch signal.

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





Standard Voltage:

LH Side





RH Side





Result





C -- READ VALUE USING TECHSTREAM (REAR DOOR COURTESY SWITCH)

B -- READ VALUE USING TECHSTREAM (BACK DOOR COURTESY SWITCH)

A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2. READ VALUE USING TECHSTREAM (BACK DOOR COURTESY SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream ON.

(d) Enter the following menus: Body Electrical / Back Door P/W / Data List.

(e) According to the display on the Techstream, read the Data List.

Back Door P/W





OK:

When back door courtesy switch operation is performed, the results are the same as above.

NG -- GO TO BACK DOOR COURTESY SWITCH CIRCUIT Luggage Room Light Circuit
OK -- Continue to next step.

3. INSPECT NO. 1 FOLD SEAT SWITCH

(a) Remove the No. 1 fold seat switch Removal.





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

Standard Resistance:

LH Side





RH Side





NG -- REPLACE NO. 1 FOLD SEAT SWITCH Removal
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 1 FOLD SEAT SWITCH)

(a) Disconnect the O34 or P20 ECU connector.





(b) Disconnect the O27 or O28 switch connector.

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

Standard Resistance:

LH Side





RH Side





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (BACK DOOR ECU - NO. 1 FOLD SEAT SWITCH)

5. READ VALUE USING TECHSTREAM (REAR DOOR COURTESY SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream ON.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) According to the display on the Techstream, read the Data List.

Main Body





OK:

When rear door courtesy light switch operation is performed, the results are the same as above.

NG -- GO TO REAR DOOR COURTESY SWITCH CIRCUIT Door Courtesy Switch Circuit
OK -- Continue to next step.

6. INSPECT NO. 2 FOLD SEAT SWITCH

(a) Remove the No. 2 fold seat switch Removal.





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

Standard Resistance:

LH Side





RH Side





NG -- REPLACE NO. 2 FOLD SEAT SWITCH Removal
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 2 FOLD SEAT SWITCH)

(a) Disconnect the O34 or P20 ECU connector.

(b) Disconnect the O26 or P12 switch connector.





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

Standard Resistance:

LH Side





RH Side





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 2 FOLD SEAT SWITCH - REAR DOOR COURTESY LIGHT SWITCH)