Toyota Tundra (2015 year). Manual — part 1002
OK
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT
ACTUATOR ASSEMBLY)
(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
A26-6 (SCC) - D67-3 (SCC)
Always
Below 1 Ω
A26-6 (SCC) or D67-3 (SCC) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
2.
INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (SCC TERMINAL)
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
(a) Disconnect the D67 transfer shift actuator assembly
connector.
(b) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
DTC P17A5 is output
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
3 (SCC) - Body ground
Always
Below 5 Ω
DTC P17A6 is output
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
3 (SCC) - Body ground
Always
1 Ω or higher
Text in Illustration
*a
Component without harness connected
(Transfer Shift Actuator Assembly)
NG
GO TO STEP 3
OK
REPLACE 4 WHEEL DRIVE CONTROL ECU
3.
INSPECT SOLENOID COIL SUB-ASSEMBLY
(a) Disconnect the A solenoid coil sub-assembly connector.
(b) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
DTC P17A5 is output
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
2 - Body ground
Always
Below 5 Ω
DTC P17A6 is output
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
2 - Body ground
Always
1 Ω or higher
Text in Illustration
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
*a
Component without harness connected
(Solenoid Coil Sub-assembly)
NG
REPLACE SOLENOID COIL SUB-ASSEMBLY
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: RM000005KPS001X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: P17A7; Transfer Synchronization
Actuator Circuit High; 2015 MY Tundra [08/2014 - ]
DTC
P17A7
Transfer Synchronization Actuator Circuit High
DESCRIPTION
This DTC is detected when a short to B+ is detected in the solenoid coil drive circuit.
DTC
CODE
DTC DETECTION CONDITION
DIAGNOSIS CONDITION
1.
MALFUNCTION STATUS
2.
MALFUNCTION TIME
3.
OTHER
4.
TROUBLE AREA
P17A7
Ignition switch ON (when not switching between
2WD and 4H)
1.
Short to B+ in the solenoid coil drive circuit
2.
1 second or more
3.
1 trip detection logic
4.
Wire harness and
connector
4 wheel drive control ECU
Solenoid coil sub-assembly
Transfer shift actuator
assembly
WIRING DIAGRAM
Refer to DTCs P17A5 and P17A6
.
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK SOLENOID COIL SUB-ASSEMBLY
WF1AM TRANSFER: TOUCH SELECT 2-4 AND HIGH-LOW SYS...
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