Dtc P17A9 Transfer Shift Motor Control Circuit Low

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Jf2A Transfer 4Wd Awd. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR OR LOCK SHIFT MOTOR)

CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL LOCK SHIFT ACTUATOR - BODY GROUND)

DTC P17A9 Transfer Shift Motor Control Circuit Low


DESCRIPTION

This DTC is output when a short to ground in the high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* drive circuit is detected.
  1. *: w/ Rear Differential Lock

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P17A9
  1. While the ignition switch is turned to ON or directly after the ignition switch is turned to ON (high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* not operating)
  2. Short to ground in the high-low transfer shift motor, center differential lock shift motor and differential lock shift motor* drive circuit
  3. 0.5 seconds or more (if directly after ignition switch is turned ON, 0.05 seconds or more)
  4. 1 trip detection logic
  1. Wire harness and connector
  2. 4 wheel drive control ECU
  3. Transfer shift actuator assembly
  4. Differential lock shift actuator*
  1. *: w/ Rear Differential Lock

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System. Dtc P17A9 Transfer Shift Motor Control Circuit Low


INSPECTION PROCEDURE

1.CHECK ACTUATOR ASSEMBLY (TRANSFER SHIFT MOTOR OR LOCK SHIFT MOTOR)

  1. Disconnect the A28 4 wheel drive control ECU connector.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Jf2A Transfer 4Wd Awd.Transfer System. Dtc P17A9 Transfer Shift Motor Control Circuit Low

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Transfer Shift Actuator Assembly (High-low Transfer Shift Motor) Side
    Tester Connection
    		Condition
    		Specified Condition
    A28-2 (HM1) or A28-6 (HM2) - Body ground
    		Always
    		10 kΩ or higher
    Transfer Shift Actuator Assembly (Center Differential Lock Shift Motor) Side
    Tester Connection
    		Condition
    		Specified Condition
    A28-8 (TM1) or A28-7 (TM2) - Body ground
    		Always
    		10 kΩ or higher
    Differential Lock Shift Actuator (Differential Lock Shift Motor) Side (w/ Rear Differential Lock)
    Tester Connection
    		Condition
    		Specified Condition
    A28-3 (M1) or A28-9 (M2) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *A
    		w/ Rear Differential Lock
    *a
    		Front view of wire harness connector
    (to 4 Wheel Drive Control ECU)

    Result:

    Result
    		Proceed to
    OK
    		for LHD
    		A
    for RHD
    		B
    NG (transfer shift actuator assembly (high-low transfer shift motor) side)
    		C
    NG (transfer shift actuator assembly (center differential lock shift motor) side)
    		D
    NG (differential lock shift actuator (differential lock shift motor) side (w/ Rear Differential Lock))
    		E


B
REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

C
Go to step 2

D
Go to step 3

E
Go to step 4
A

REPLACE 4 WHEEL DRIVE CONTROL ECU (Click here)

2.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND)

  1. Disconnect the A28 4 wheel drive control ECU connector.

  1. Disconnect the C38 transfer shift actuator assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A28-2 (HM1) or C38-1 (HM1) - Body ground
    		Always
    		10 kΩ or higher
    A28-6 (HM2) or C38-2 (HM2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY (Click here)

3.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND TRANSFER SHIFT ACTUATOR ASSEMBLY - BODY GROUND)

  1. Disconnect the A28 4 wheel drive control ECU connector.

  1. Disconnect the C37 transfer shift actuator assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A28-8 (TM1) or C37-1 (TM1) - Body ground
    		Always
    		10 kΩ or higher
    A28-7 (TM2) or C37-2 (TM1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY (Click here)

4.CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU AND DIFFERENTIAL LOCK SHIFT ACTUATOR - BODY GROUND)

  1. Disconnect the A28 4 wheel drive control ECU connector.

  1. Disconnect the f1 differential lock shift actuator connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A28-3 (M1) or f1-3 - Body ground
    		Always
    		10 kΩ or higher
    A28-9 (M2) or f1-2 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE DIFFERENTIAL LOCK SHIFT ACTUATOR (Click here)