Toyota Tundra (2015 year). Manual — part 2455
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000003S3L031X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B2650; Slide Sensor Malfunction; 2015 MY
Tundra [08/2014 - ]
DTC
B2650
Slide Sensor Malfunction
DESCRIPTION
When the position control ECU and switch assembly does not receive a sensor signal despite forward or rearward
CODE
DTC DETECTION CONDITION
TROUBLE AREA
B2650
The forward and rearward lock detection position
assembly
Front seat cushion frame sub-assembly
LH (slide motor)
Harness or connector
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1.
PERFORM ACTIVE TEST USING TECHSTREAM (SEAT SLIDE OPERATION)
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
OK
(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
Seat Slide Operation
Seat sliding operation
Front / OFF / Rear
-
OK:
Motor operates normally.
NG
GO TO STEP 5
2.
CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (SLIDE MOTOR CIRCUIT)
(a) Disconnect the front seat cushion frame sub-assembly LH
(slide motor) connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
Z3-5 - Z3-6
Sliding switch on
4.8 to 5.1 V
Text in Illustration
*a
NG
GO TO STEP 4
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
OK
3.
CHECK FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH (SLIDE MOTOR)
(a) Reconnect the front seat cushion frame sub-assembly LH
(slide motor) connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
Z3-5 - Body ground
Sliding switch on
4.5 to 4.8 V
Text in Illustration
*a
Component with harness connected
(Front Seat Cushion Frame Sub-assembly LH [Slide Motor])
NG
REPLACE FRONT SEAT CUSHION FRAME
SUB-ASSEMBLY LH
OK
REPLACE POSITION CONTROL ECU AND SWITCH
ASSEMBLY
4.
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH
ASSEMBLY - FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH)
(a) Disconnect the Z10 position control ECU and switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z10-5 (SSRS) - Z3-5
Always
Below 1 Ω
Z10-1 (SGND) - Z3-6
Always
Below 1 Ω
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
OK
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z10-5 (SSRS) or Z3-5 - Body ground
Always
10 kΩ or higher
Z10-1 (SGND) or Z3-6 - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE POSITION CONTROL ECU AND SWITCH
ASSEMBLY
5.
INSPECT FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH (SLIDE MOTOR)
(a) Remove the front seat cushion frame sub-assembly LH (slide Motor)
.
(b) Inspect the front seat cushion frame sub-assembly LH (slide motor)
.
NG
REPLACE FRONT SEAT CUSHION FRAME
SUB-ASSEMBLY LH
6.
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH
ASSEMBLY - FRONT SEAT CUSHION FRAME SUB-ASSEMBLY LH)
(a) Disconnect the Z9 position control ECU and switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z9-3 (SLD+) - Z3-4
Always
Below 1 Ω
Z9-4 (SLD-) - Z3-3
Always
Below 1 Ω
Z9-3 (SLD+) or Z3-4 - Body ground
Always
10 kΩ or higher
Z9-4 (SLD-) or Z3-3 - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE POSITION CONTROL ECU AND SWITCH
ASSEMBLY
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
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