Power Seat Power Easy Access System Function does not Operate
SEAT: FRONT POWER SEAT CONTROL SYSTEM: Power Seat Power Easy Access System Function does not Operate
- Power Seat Power Easy Access System Function does not Operate
DESCRIPTION
When the engine switch is off and the shift lever is in P, the power seat slides rearward when the seat belt tongue plate is disengaged from the front seat inner belt assembly LH (auto away function). Also, the power seat slides forward when the seat belt tongue plate is engaged with the front seat inner belt assembly LH with the engine switch on (ACC) or on (IG), or the shift lever in P.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.
PROCEDURE
1. CHECK FRONT POWER SEAT OPERATION
(a) Check that each function of the power seat operates normally by using the front power seat switch Operation Check.
OK:
Each function of power seat operates normally by using seat switches.
Result
B -- GO TO PROBLEM SYMPTOMS TABLE (Front Power Seat does not Operate with Front Power Seat Switch) Problem Symptoms Table
C -- GO TO PROBLEM SYMPTOMS TABLE (One or more Power Seat Motors do not Operate) Problem Symptoms Table
A -- Continue to next step.
2. READ VALUE USING TECHSTREAM (BUCKLE SWITCH)
(a) Using the Techstream, read the Data List Scan Tool Testing and Procedures.
Driver Seat
OK:
On Techstream screen, item changes between ON and OFF according to above chart.
NG -- INSPECT FRONT SEAT INNER BELT ASSEMBLY LH
OK -- Continue to next step.
3. CHECK FRONT POWER SEAT SWITCH LH
(a) Temporarily replace the front power seat switch LH with a new or normally functioning one Disassembly.
NEXT -- Continue to next step.
4. CHECK POWER SEAT POWER EASY ACCESS SYSTEM
(a) Check that the power seat power easy access system operates normally when engaging and disengaging the tongue plate of the seat belt with the shift lever in P Operation Check.
OK:
Power seat power easy access system is normal.
NG -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal
OK -- REPLACE FRONT POWER SEAT SWITCH LH Disassembly
5. INSPECT FRONT SEAT INNER BELT ASSEMBLY LH
(a) Remove the front seat inner belt assembly LH Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Removal
OK -- Continue to next step.
6. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - FRONT SEAT INNER BELT)
(a) Disconnect the b5 switch connector.
(b) Disconnect the b10 inner belt connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE FRONT POWER SEAT SWITCH LH Disassembly