Toyota Tundra (2015 year). Manual - part 873
Last Modified: 9-16-2014
6.6 U
Doc ID: RM0000030AH00IX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: FAIL-SAFE CHART; 2015 MY Tundra
[08/2014 - ]
FAIL-SAFE CHART
TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM
DTC
NO.
FAIL-SAFE OPERATION
FAIL-SAFE DEACTIVATION CONDITION
U0100
Prohibits switching to 4L or switching
from 4L for all shift positions
CAN communication signal from ECM is received
U0122
Prohibits all switching except from 4H
to 2WD
CAN communication signal from skid control ECU is received
U0416
Prohibits all switching except from 4H
to 2WD
Wheel speed sensor malfunction signals from skid control ECU
return to normal
P0560
Maintains current 4WD mode
B terminal voltage becomes 9.5 V or higher (for 1 second)
P17A0 Prohibits switching from 2WD to 4H
Recovers from open circuit in the A.D.D. shift motor drive
circuit (for 1 second)
P17A1 Prohibits switching from 2WD to 4H
Recovers from short to ground in the A.D.D. shift motor drive
circuit (for 1 second)
P17A2 Prohibits switching from 2WD to 4H
Recovers from short to B+ in the A.D.D. shift motor (for 1
second)
P17A4 Prohibits switching from 2WD to 4H
A.D.D. actuator limit switch (2 lines) signal returns to normal
(for 1 second)
P17A5
Prohibits switching from 2WD to 4H
while the vehicle is being drive
Recovers from open circuit in the solenoid coil drive circuit and
the ignition switch turned from off to ON
P17A6
Prohibits switching from 2WD to 4H
while the vehicle is being driven
Recovers from short to ground in the solenoid coil drive circuit
and the ignition switch is turned from off to ON
P17A7
Prohibits switching from 2WD to 4H
while the vehicle is being driven
Recovers from short to B+ in the solenoid coil drive circuit and
the ignition switch is turned from off to ON
P17A8
Prohibits all switching (maintains the
current position)
Recovers from open circuit in the transfer shift motor drive
circuit and the ignition switch is turned from off to ON
P17A9
Prohibits all switching (maintains the
current position)
Recovers from short to ground in the transfer shift motor drive
circuit and the ignition switch is turned from off to ON
P17AA
Prohibits all switching (maintains the
current position)
Recovers from short to B+ in the transfer shift motor drive
circuit and the ignition switch is turned from off to ON
P17AB
Prohibits all switching (maintains the
current position)
Recovers from short to ground in the transfer shift actuator
limit switch and the ignition
P17AC
Prohibits all switching (maintains the
current position)
Transfer shift actuator limit switch signal is returns to normal
and the ignition switch is turned from off to ON
P2772
Prohibits all switching (maintains the
current position)
4WD HIGH and LOW position signals return to normal (for 1
second)
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...