Dtc C1268 Transfer L4 Position Switch Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK TERMINAL VOLTAGE (EXI4 TERMINAL)

RECONFIRM DTC

CHECK HARNESS AND CONNECTOR (EXI4 CIRCUIT)

INSPECT LL POSITION SWITCH

CHECK TERMINAL VOLTAGE (LL POSITION SWITCH POWER SOURCE CIRCUIT)

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - ECM)

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - TRANSMISSION CONTROL ECU)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. After replacing the brake actuator assembly, perform calibration (Toyota Fortuner RM000000XHR06WX.html).
   
2. Before disconnecting the connector, make sure that there are no problems with the connection.
   
3. After disconnecting the connector, make sure that the connector case and terminals are not deformed or corroded.
   

1. Connect the skid control ECU (brake actuator assembly) connector.
   

2. Set the vehicle to the HL or H state using the transfer shift lever.
   

3. Disconnect the skid control ECU (brake actuator assembly) connector.
   

4. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   S25-9 (EXI4) - Body ground	Ignition switch ON Transfer shift position HL or H	11 to 14 V

5. Connect the skid control ECU (brake actuator assembly) connector.
   

6. Set the vehicle to the LL state using the transfer shift lever.
   

7. Disconnect the skid control ECU (brake actuator assembly) connector.
   

8. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   S25-9 (EXI4) - Body ground	Ignition switch ON Transfer shift position LL	Below 1.5 V

   Text in Illustration

   *a	Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly])

1. Clear the DTC (Toyota Fortuner RM000000XHV0C7X.html).
   

2. Turn the ignition switch off.
   

3. Check if the same DTC is output.
   

   Result

   Result	Proceed to
   DTC is output	A
   DTC is not output	B

1. Turn the ignition switch off.
   

2. Disconnect the skid control ECU (brake actuator assembly) connector.
   

3. for 1GR-FE:
   Disconnect the E17 ECM connector.
   for 1KD-FTV (Automatic Transmission):
   Disconnect the T38 transmission control ECU connector.
   

4. Disconnect the LL position switch (No. 1 transfer indicator switch) connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   S25-9 (EXI4) - T5-1	Always	Below 1 Ω
   S25-9 (EXI4) - Body ground	Always	10 kΩ or higher
   T5-2 - Body ground	Always	Below 1 Ω

1. Turn the ignition switch off.
   

2. Remove the LL position switch (No. 1 transfer indicator switch) (Toyota Fortuner RM000001HGX001X.html).
   

3. Inspect the LL position switch (No. 1 transfer indicator switch) (Toyota Fortuner RM000001TFE000X.html).
   

1. Turn the ignition switch off.
   

2. Disconnect the LL position switch (No. 1 transfer indicator switch) connector.
   

3. Disconnect the skid control ECU (brake actuator assembly) connector.
   

4. for 1GR-FE:
   Connect the ECM connector.
   for 1KD-FTV (Automatic Transmission):
   Connect the transmission control ECU connector.
   

5. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   1 - 2	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to LL Position Switch [No. 1 Transfer Indicator Switch])

   Result

   Result		Proceed to
   OK		A
   NG	for 1GR-FE	B
   	for 1KD-FTV (Automatic Transmission)	C
   	for 1KD-FTV (Manual Transmission)	D

1. Turn the ignition switch off.
   

2. Disconnect the skid control ECU (brake actuator assembly) connector.
   

3. Disconnect the E17 ECM connector.
   

4. Disconnect the LL position switch (No. 1 transfer indicator switch) connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   S25-9 (EXI4) - E17-13 (L4)	Always	Below 1 Ω
   S25-9 (EXI4) - Body ground	Always	10 kΩ or higher

1. Turn the ignition switch off.
   

2. Disconnect the skid control ECU (brake actuator assembly) connector.
   

3. Disconnect the T38 transmission control ECU connector.
   

4. Disconnect the LL position switch (No. 1 transfer indicator switch) connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   S25-9 (EXI4) - T38-15 (L4)	Always	Below 1 Ω
   S25-9 (EXI4) - Body ground	Always	10 kΩ or higher