Toyota Tundra (2015 year). Manual — part 2465
OK
OK
NG
Go to CAN COMMUNICATION SYSTEM
2.
CHECK FRONT POWER SEAT OPERATION
.
OK:
Go to PROBLEM SYMPTOMS TABLE
3.
READ VALUE USING TECHSTREAM (SEAT MEMORY 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 / Driver Seat / Data List.
(e) Read the Data List according to the display on the Techstream.
Driver Seat
TESTER
DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC
NOTE
SET Switch
Seat memory switch SET signal / ON or
OFF
ON: Seat memory switch SET
on
OFF: Seat memory switch SET
off
-
M1 Switch
Seat memory switch M1 signal / ON or
OFF
ON: Seat memory switch M1 on
OFF: Seat memory switch M1
off
-
M2 Switch
Seat memory switch M2 signal / ON or
OFF
ON: Seat memory switch M2 on
OFF: Seat memory switch M2
off
-
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Pow...
OK
OK
NEXT
OK:
ON or OFF is displayed on the Techstream according to the table above.
NG
GO TO STEP 9
4.
PERFORM ACTIVE TEST USING TECHSTREAM (BUZZER)
(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 / Driver Seat / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Driver Seat
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Buzzer
Buzzer operation
ON / OFF
-
OK:
Buzzer sounds normally.
NG
REPLACE POSITION CONTROL ECU AND SWITCH
ASSEMBLY
5.
REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY
(a) Temporarily replace the outer mirror ECU assembly with a new or normally functioning one
.
6.
CHECK SEAT POSITION MEMORY FUNCTION
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Pow...
NEXT
.
NOTICE:
The seat position will not be recorded if the SET switch and 2 seat memory switches are pressed
simultaneously.
If a memorizing operation has failed, release all switches. The seat memory function does not operate
unless the switches are released.
OK:
Seat position memory function operates normally.
NG
GO TO STEP 7
OK
END (OUTER MIRROR CONTROL ECU ASSEMBLY
WAS DEFECTIVE)
7.
REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY
(a) Temporarily replace the position control ECU and switch assembly with a new or normally
functioning one
.
8.
CHECK SEAT POSITION MEMORY FUNCTION
.
NOTICE:
The seat position will not be recorded if the SET switch and 2 seat memory switches are pressed
simultaneously.
If a memorizing operation has failed, release all switches. The seat memory function does not operate
unless the switches are released.
OK:
Seat position memory function operates normally.
NG
REPLACE MAIN BODY ECU (DRIVER SIDE
JUNCTION BLOCK ASSEMBLY)
OK
END (POSITION CONTROL ECU AND SWITCH
ASSEMBLY WAS DEFECTIVE)
9.
INSPECT SEAT MEMORY SWITCH
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Pow...
OK
(a) Remove the seat memory switch
.
(b) Inspect the seat memory switch
.
NG
REPLACE SEAT MEMORY SWITCH
10.
CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY -
SEAT MEMORY SWITCH)
(a) Disconnect the N8 outer mirror control ECU assembly connector.
(b) Disconnect the N6 seat memory switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
N8-9 (MM) - N6-1 (MRY)
Always
Below 1 Ω
N8-8 (M1) - N6-2 (M1)
Always
Below 1 Ω
N8-7 (M2) - N6-3 (M2)
Always
Below 1 Ω
N8-10 (MSWE) - N6-4 (E)
Always
Below 1 Ω
N8-9 (MM) or N6-1 (MRY) - Body ground
Always
10 kΩ or higher
N8-8 (M1) or N6-2 (M1) - Body ground
Always
10 kΩ or higher
N8-7 (M2) or N6-3 (M2) - Body ground
Always
10 kΩ or higher
N8-10 (MSWE) or N6-4 (E) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Pow...
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