Toyota Tundra (2015 year). Manual — part 2461
Last Modified: 9-16-2014
6.6 J
Doc ID: RM000002Y3H00AX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Front Power Seat does not Operate with
Front Power Seat Switch; 2015 MY Tundra [08/2014 - ]
Front Power Seat does not Operate with Front Power Seat Switch
DESCRIPTION
When a signal is input into the position control ECU and switch assembly, the ECU manages the signals received
from the power seat switches, and operates each motors. If the position control ECU and switch assembly receives
more than 2 motors operation signals, the motor is stopped. Manual operation is restarted after the position
control ECU and switch assembly receives 1 signal only.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1.
CHECK FRONT POWER SEAT OPERATION
.
Result
RESULT
PROCEED TO
All power seat functions does not operate
A
One or more power seat functions does not operate
B
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Fron...
A
B
Go to OTHER FLOW CHART (One or more Power Seat
Motors do not Operate)
2.
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH
ASSEMBLY - BATTERY AND BODY GROUND)
(a) Disconnect the Z9 and Z10 position control ECU and switch
assembly connectors.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z9-7 (+B1) - Body ground
Always
11 to 14 V
Z10-12 (SYSB) - Body ground
Always
11 to 14 V
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z9-2 (GND1) - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE POSITION CONTROL ECU AND SWITCH
ASSEMBLY
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Fron...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM0000019J8014X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): One or more Power Seat Motors do not
Operate; 2015 MY Tundra [08/2014 - ]
One or more Power Seat Motors do not Operate
DESCRIPTION
When a signal is input into the position control ECU and switch assembly, the ECU manages the signals received
from the power seat switches, and operates each motors. If the position control ECU and switch assembly receives
more than 2 motor operation signals, the motor is stopped. Manual operation is restarted after the position control
ECU and switch assembly receives 1 signal only.
WIRING DIAGRAM
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): One ...
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): One ...
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