Folding Motor Circuit
SEAT: REAR POWER SEAT CONTROL SYSTEM: Folding Motor Circuit
- Folding Motor Circuit
DESCRIPTION
The fold seat control ECU receives switch operation signals from the No. 1 and No. 2 fold seat switches and activates the power seat motors. At this time, the Hall IC detects the actuation of the seat cushion and sends a seat cushion actuation signal to the fold seat control ECU. The fold seat control ECU uses signals from the Hall IC to detect if an object is caught or if any other abnormal condition has occurred.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT SEAT LEG ASSEMBLY
(a) for LH Side:
(1) Remove the No. 3 seat leg assembly LH Disassembly.
(2) Check if the No. 3 seat leg moves smoothly when the battery is connected to the cushion motor connector terminals.
(b) for RH Side:
(1) Remove the No. 2 seat leg assembly Disassembly.
(2) Check if the No. 2 seat leg moves smoothly when the battery is connected to the cushion motor connector terminals.
OK:
Result
B -- CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 2 SEAT LEG)
C -- REPLACE NO. 3 SEAT LEG ASSEMBLY LH Disassembly
D -- REPLACE NO. 2 SEAT LEG ASSEMBLY Disassembly
A -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 3 SEAT LEG)
(a) Disconnect the d2 and d1 ECU connectors.
(b) Disconnect the d4 No. 3 seat leg connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK FOLD SEAT CONTROL ECU LH
(a) Remove the fold seat control ECU LH with its connectors still connected Removal.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPLACE NO. 3 SEAT LEG ASSEMBLY LH Disassembly
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Rear Power Seat Control System
4. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - NO. 2 SEAT LEG)
(a) Disconnect the c2 and c1 ECU connectors.
(b) Disconnect the c4 No. 2 seat leg connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK FOLD SEAT CONTROL ECU RH
(a) Remove the fold seat control ECU RH with its connectors still connected Removal.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPLACE NO. 2 SEAT LEG ASSEMBLY Disassembly
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Rear Power Seat Control System