Toyota Tundra (2015 year). Manual — part 872
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A25-6 (B) -
A25-5 (GND)
G - W-B
ECU power supply
Always
11 to 14 V
A25-7 (DL1) -
A25-5 (GND)
LG - W-B
A.D.D. actuator limit
switch input
Ignition switch ON
Transfer position 2WD (A.D.D.
actuator Free)
10.5 to 14 V
Ignition switch ON
Transfer position 4WD (A.D.D.
actuator Lock)
Below 1.5 V
A25-11 (LO) -
A25-5 (GND)
P - W-B
Transfer position switch
input
Ignition switch ON
Transfer position switch 2WD
10.5 to 14 V
Ignition switch ON
Transfer position switch 4H
Below 1.5 V
Ignition switch ON
Transfer position switch 4L
Below 1 V
A25-12 (2-4) -
A25-5 (GND)
B - W-B
Transfer position switch
input
Ignition switch ON
Transfer position switch 2WD
Below 1 V
Ignition switch ON
Transfer position switch 4H
Below 1.5 V
Ignition switch ON
Transfer position switch 4L
10.5 to 14 V
A25-16 (IG) -
A25-5 (GND)
V - W-B
IG power
Ignition switch ON
11 to 14 V
A25-18 (ADD) -
A25-5 (GND)
GR - W-B
A.D.D. detection switch
input
Ignition switch ON
Transfer position 2WD
10 to 14 V
Ignition switch ON
Transfer position 4WD
Below 1.5 V
A25-20 (DL2) -
A25-5 (GND)
R - W-B
A.D.D. actuator limit
switch input
Ignition switch ON
Transfer position 2WD (A.D.D.
actuator Free)
Below 1.5 V
Ignition switch ON
Transfer position 4WD (A.D.D.
actuator Lock)
10.5 to 14 V
A25-23 (CANH) -
A25-22 (CANL)
BE - W
CAN communication line
Ignition switch off
54 to 69 Ω
A26-1 (TM1) -
A25-5 (GND)
R - W-B
Transfer shift motor
output
Ignition switch ON
Shift lever in N
Transfer position switch turned
from 2WD to 4H (switching from
2WD to 4H)
Transfer position switch turned
from 4H to 4L (switching from 4H
to 4L)
10 to 14 V
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
TERMINAL NO.
(SYMBOL)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A26-2 (TM2) -
A25-5 (GND)
W - W-B
Transfer shift motor
output
Ignition switch ON
Shift lever in N
Transfer position switch turned
from 4L to 4H (switching from 4L
to 4H)
Transfer position switch turned
from 4H to 2WD (switching from
4H to 2WD)
10 to 14 V
A26-6 (SCC) -
A25-5 (GND)
L - W-B
Solenoid coil output
Ignition switch ON
Transfer position switch turned
from 2WD to 4H (switching from
2WD to 4H))
10 to 14 V
A26-12 (H4) -
A25-5 (GND)
BE - W-B
Transfer indicator switch
input
Ignition switch ON
Transfer position not in 4L
4 to 6 V
Ignition switch ON
Transfer position 4L
Below 1.5 V
A26-13 (L4) -
A25-5 (GND)
B - W-B
Transfer indicator switch
input
Ignition switch ON
Transfer position not in 4L
11 to 14 V
Ignition switch ON
Transfer position 4L
Below 1.5 V
A26-18 (TL1) -
A25-5 (GND)
V - W-B
Transfer shift actuator
limit switch input
Ignition switch ON
Not switching driving mode
4 to 6 V
Ignition switch ON
Switching driving mode
4 to 6 V ←→
Below 1.5 V
A26-20 (TL2) -
A25-5 (GND)
BR - W-B
Transfer shift actuator
limit switch input
Ignition switch ON
Not switching driving mode
4 to 6 V
Ignition switch ON
Switching driving mode
4 to 6 V ←→
Below 1.5 V
A26-22 (GTL) -
A25-5 (GND)
P - W-B
Transfer shift actuator
limit switch GND input
Ignition switch ON
Not switching driving mode
4 to 6 V
Ignition switch ON
Switching driving mode
Below 1.5 V
A26-24 (TL4) -
A25-5 (GND)
SB - W-B
Transfer shift actuator
limit switch input
Ignition switch ON
Not switching driving mode
4 to 6 V
Ignition switch ON
Switching driving mode
4 to 6 V ←→
Below 1.5 V
A26-26 (TL3) -
A25-5 (GND)
W - W-B
Transfer shift actuator
limit switch input
Ignition switch ON
Not switching driving mode
4 to 6 V
Ignition switch ON
Switching driving mode
4 to 6 V ←→
Below 1.5 V
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
Last Modified: 9-16-2014
6.6 D
Doc ID: RM000005KPL001X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: DIAGNOSIS SYSTEM; 2015 MY Tundra
[08/2014 - ]
DIAGNOSIS SYSTEM
1. DESCRIPTION
The 4 wheel drive control ECU records DTCs when the ECU detects a malfunction in the ECU itself or in system
circuits.
2. CHECK DLC3
(a) Inspect the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before proceeding.
(b) Check the DLC3
.
3. FUNCTION OF INDICATOR LIGHT
(a) When a problem occurs in the touch select 2-4 and high-low system, the 4HI and 4LO indicator lights on
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
Last Modified: 9-16-2014
6.6 D
Doc ID: RM000005KPM001X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: DTC CHECK / CLEAR; 2015 MY Tundra
[08/2014 - ]
DTC CHECK / CLEAR
1. CHECK DTC
(a) Check the DTCs.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis /
Four Wheel Drive / Trouble Codes.
.
2. CLEAR DTC
(a) Clear the DTCs.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Operate the Techstream to clear the DTCs. Enter the following menus: Chassis / Four Wheel Drive /
Trouble Codes.
(5) According to the display on the Techstream, select the trouble code data display with the clear button.
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
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