DESCRIPTION
This DTC is output when an open circuit in the transfer shift motor drive circuit is detected.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P17A8 |
Transfer Shift Motor Control Circuit Circuit Open |
|
|
WIRING DIAGRAM
Refer to DTC P17A9 (See page ).
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY) |
(a) Disconnect the F12 4 wheel drive control ECU connector.
(b) Disconnect the T4 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 |
---|---|---|
F12-8 (TM1) - T4-2 (TM1) |
Always |
Below 1 Ω |
F12-7 (TM2) - T4-1 (TM2) |
Always |
Below 1 Ω |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
INSPECT TRANSFER SHIFT ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR) |
(a) Disconnect the T4 transfer shift actuator assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2 (TM1) - 1 (TM2) |
Always |
1.5 to 10 Ω |
*a |
Component without harness connected (Transfer Shift Actuator Assembly) |
OK | ![]() |
REPLACE 4 WHEEL DRIVE CONTROL ECU |
NG | ![]() |
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY |
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PROCEDURE
1.
CHECK VEHICLE SIGNAL (OPERATION CHECK)
(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal
in Operation Check (See page ).
(b) Check that the display changes between ON and OFF according to the light
control ...
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DESCRIPTION
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DTC No.
DTC Detection Condition
Trouble Area
B1551
When one of the conditions below is met:
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