Toyota Tundra (2015 year). Manual — part 1004
(a) Disconnect the A26 4 wheel drive control ECU connector.
(b) Disconnect the D67 transfer shift actuator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
A26-1 (TM1) - D67-1 (TM1)
Always
Below 1 Ω
A26-2 (TM2) - D67-2 (TM2)
Always
Below 1 Ω
A26-1 (TM1) or D67-1 (TM1) - Body ground
Always
10 kΩ or higher
A26-2 (TM2) or D67-2 (TM2) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000005KPV001X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: P17AA; Transfer Shift Motor Control
Circuit High; 2015 MY Tundra [08/2014 - ]
DTC
P17AA
Transfer Shift Motor Control Circuit High
DESCRIPTION
This DTC is detected when a short to B+ is detected in the transfer shift motor drive circuit.
DTC
CODE
DTC DETECTION CONDITION
DIAGNOSIS CONDITION
1.
MALFUNCTION STATUS
2.
MALFUNCTION TIME
3.
OTHER
4.
TROUBLE AREA
P17AA
Ignition switch ON (when transfer shift motor is not
operating)
1.
Short to B+ in the transfer shift motor drive circuit
2.
1 second or more
3.
1 trip detection logic
4.
Wire harness and
connector
4 wheel drive control ECU
Transfer shift actuator
assembly
WIRING DIAGRAM
Refer to DTCs P17A8 and P17A9
.
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK TRANSFER SHIFT ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR)
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
(a) Disconnect the 4 wheel drive control ECU connector.
(b) Measure the voltage according to the value(s) in the table
below.
Standard Voltage:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
A26-1 (TM1) or A26-2 (TM2) -
Body ground
Ignition switch
ON
Below 1 V
Text in Illustration
*a
NG
GO TO STEP 2
OK
REPLACE 4 WHEEL DRIVE CONTROL ECU
2.
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER
SHIFT ACTUATOR ASSEMBLY - BODY GROUND)
(a) Disconnect the A26 4 wheel drive control ECU connector.
(b) Disconnect the D67 transfer shift actuator assembly connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
A26-1 (TM1) or D67-1 (TM1) - Body ground
Ignition switch ON
Below 1 V
A26-2 (TM2) or D67-2 (TM2) - Body ground
Ignition switch ON
Below 1 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000005KPT001X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: P17AB; Transfer Shift Motor Position
Circuit; 2015 MY Tundra [08/2014 - ]
DTC
P17AB
Transfer Shift Motor Position Circuit
DESCRIPTION
This DTC is detected when a short to ground is detected in the limit switch circuit, which detects the position of
the transfer shift motor.
DTC
CODE
DTC DETECTION CONDITION
DIAGNOSIS CONDITION
1.
MALFUNCTION STATUS
2.
MALFUNCTION TIME
3.
OTHER
4.
TROUBLE AREA
P17AB
Immediately after turning the ignition switch to ON and
driving mode is being switched
1.
Short to ground in either the TL1, TL2, TL3, TL4 or GTL
terminal circuit
2.
0.02 seconds or more
3.
1 trip detection logic
4.
Wire harness and
connector
4 wheel drive control
ECU
Transfer shift actuator
assembly
WIRING DIAGRAM
INSPECTION PROCEDURE
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
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