Toyota Tundra (2015 year). Manual — part 2459
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000003VVT02TX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B2658; Short in Sensor with Motor Power
Supply Circuit; 2015 MY Tundra [08/2014 - ]
DTC
B2658
Short in Sensor with Motor Power Supply Circuit
DESCRIPTION
This DTC is stored when a power seat motor operates (a position control sensor is being supplied with power) and
the power supply voltage does not rise to the specified value.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
B2658
A problem with the voltage supplied to the position
control sensor.
Position control ECU and switch
assembly
Front seat cushion frame
sub-assembly LH
Front seatback frame sub-assembly
LH
Harness or connector
WIRING DIAGRAM
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK FOR DTC
(a) Clear the DTCs
.
(b) Check for DTCs
.
OK:
DTC B2658 is not output.
NG
GO TO STEP 2
OK
USE SIMULATION METHOD TO CHECK
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
OK
2.
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) Disconnect the Z3 front seat cushion frame sub-assembly LH (slide motor) connector.
(c) 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
Z10-5 (SSRS) - Z10-1 (SGND)
Always
10 kΩ or higher
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
3.
CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (SLIDE MOTOR CIRCUIT)
(a) Reconnect the Z10 position control ECU and switch
assembly 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
OK
OK
(to Front Seat Cushion Frame Sub-assembly LH [Slide Motor])
NG
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) Disconnect the Z4 front seat cushion frame sub-assembly LH (lifter motor) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
Z10-4 (SSRL) - Z4-4
Always
Below 1 Ω
Z10-1 (SGND) - Z4-3
Always
Below 1 Ω
Z10-4 (SSRL) - Z10-1 (SGND)
Always
10 kΩ or higher
Z10-4 (SSRL) or Z4-4 - Body ground
Always
10 kΩ or higher
Z10-1 (SGND) or Z4-3 - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
5.
CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY (LIFTER MOTOR CIRCUIT)
SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): B265...
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