Dtc P0617 Starter Relay Circuit High

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK IF VEHICLE IS EQUIPPED WITH ENTRY AND START SYSTEM

READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - POWER MANAGEMENT CONTROL ECU)

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ST RELAY)

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ECM)

INSPECT CLUTCH PEDAL SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - POWER MANAGEMENT CONTROL ECU)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

INSPECT IGNITION SWITCH

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - IGNITION SWITCH)

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ST RELAY)

CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ECM)

INSPECT CLUTCH PEDAL SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - IGNITION SWITCH)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

REPLACE ECM

REPLACE CLUTCH PEDAL SWITCH ASSEMBLY

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

REPLACE IGNITION SWITCH

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER DTC OUTPUT RECURS

DTC P0617 Starter Relay Circuit High

DESCRIPTION

While the engine is being cranked, positive battery voltage is applied to terminal STA of the ECM.
If the ECM detects the starter control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and stores the DTC.
This monitor runs when the vehicle has been driven at 20 km/h (12.5 mph) or more for more than 20 seconds.

P0617

DTC Detection Drive Pattern	DTC Detection Condition	Trouble Area
Drive the vehicle for 25 seconds or more at a speed of 20 km/h (12.5 mph) or more and an engine speed of 1000 rpm or more	Conditions (a), (b) and (c) are met for 20 seconds (1 trip detection logic): (a) Vehicle speed is more than 20 km/h (12.5 mph). (b) Engine speed is more than 1000 rpm. (c) STA signal is on.	Starter relay circuit Ignition switch assembly Clutch pedal switch assembly*1 Park/neutral position switch assembly*2

*1: for Manual Transmission
*2: for Automatic Transmission

Related Data List

DTC No.	Data List
P0617	Starter Signal

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

After replacing the ECM, the new ECM needs registration (LandCruiser RM0000012XK0ARX.html) and initialization (LandCruiser RM000000TIN08CX.html).

HINT:

1. The following troubleshooting process is based on the premise that the engine can crank normally. If the engine does not crank, proceed to Problem Symptoms Table (LandCruiser RM0000012WF0ABX.html).
   
2. If this DTC is output, inspect the starter.
   

1.CHECK IF VEHICLE IS EQUIPPED WITH ENTRY AND START SYSTEM

1. Check if the vehicle is equipped with the entry and start system.
   
   

   Result

   Result	Proceed to
   w/ Entry and Start System	A
   w/o Entry and Start System	B

B	Go to step 11

A

2.READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.
   

4. Read the value displayed on the tester when the ignition switch is turned to ON.
   

   OK:

   Switch Condition	Starter Signal
   Ignition switch ON	OFF

Result

Result	Proceed to
NG (for Manual Transmission)	A
NG (for Automatic Transmission)	B
OK	C

B	Go to step 7
C	Go to step 26

A

3.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - POWER MANAGEMENT CONTROL ECU)

1. Disconnect the clutch pedal switch assembly connector.
   

2. Disconnect the power management control ECU connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   A40-2 or G50-3 (STAR) - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   r1-2 or G50-3 (STAR) - Body ground	Always	10 kΩ or higher

4. Reconnect the clutch pedal switch assembly connector.
   

5. Reconnect the power management control ECU connector.
   

NG	Go to step 25

OK

4.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ST RELAY)

1. Remove the ST relay from the engine room relay block.
   

2. Disconnect the clutch pedal switch assembly connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or A40-1 - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or r1-1 - Body ground	Always	10 kΩ or higher

4. Reinstall the ST relay.
   

5. Reconnect the clutch pedal switch assembly connector.
   

NG	Go to step 25

OK

5.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ECM)

1. Disconnect the ECM connector.
   

2. Disconnect the clutch pedal switch assembly connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   G57-6 (STA) or A40-1 - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   G57-6 (STA) or r1-1 - Body ground	Always	10 kΩ or higher

4. Reconnect the ECM connector.
   

5. Reconnect the clutch pedal switch assembly connector.
   

NG	Go to step 25

OK

6.INSPECT CLUTCH PEDAL SWITCH ASSEMBLY

1. Inspect the clutch pedal switch assembly (LandCruiser RM0000032S300DX_01_0001.html).
   

OK	Go to step 21
NG	Go to step 22

7.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - POWER MANAGEMENT CONTROL ECU)

1. Disconnect the park/neutral position switch connector.
   

2. Disconnect the power management control ECU connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   C40-4 or G50-3 (STAR) - Body ground	Always	10 kΩ or higher

4. Reconnect the park/neutral position switch connector.
   

5. Reconnect the power management control ECU connector.
   

NG	Go to step 25

OK

8.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY)

1. Remove the ST relay from the engine room relay block.
   

2. Disconnect the park/neutral position switch connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or C159-5 - Body ground	Always	10 kΩ or higher

4. Reinstall the ST relay.
   

5. Reconnect the park/neutral position switch connector.
   

NG	Go to step 25

OK

9.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)

1. Disconnect the ECM connector.
   

2. Disconnect the park/neutral position switch connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   C159-5 or G57-6 (STA) - Body ground	Always	10 kΩ or higher

4. Reconnect the ECM connector.
   

5. Reconnect the park/neutral position switch connector.
   

NG	Go to step 25

OK

10.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

1. Inspect the park/neutral position switch assembly (LandCruiser RM000002BKX04GX.html).
   

OK	Go to step 21
NG	Go to step 23

11.READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to ON and turn the tester on.
   

3. Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.
   

4. Read the value displayed on the tester when the ignition switch is turned to ON.
   

   OK:

   Switch Condition	Starter Signal
   Ignition switch ON	OFF

OK	Go to step 26
NG	Go to step 12

12.INSPECT IGNITION SWITCH

1. Inspect the ignition switch assembly (LandCruiser RM00000474M00FX.html).
   

Result

Result	Proceed to
OK (for Manual Transmission)	A
OK (for Automatic Transmission)	B
NG	C

B	Go to step 17
C	Go to step 24

A

13.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - IGNITION SWITCH)

1. Disconnect the clutch pedal switch assembly connector.
   

2. Disconnect the ignition switch assembly connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   A40-2 or G2-1 (ST1) - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   r1-2 or G2-1 (ST1) - Body ground	Always	10 kΩ or higher

4. Reconnect the clutch pedal switch assembly connector.
   

5. Reconnect the ignition switch assembly connector.
   

NG	Go to step 25

OK

14.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ST RELAY)

1. Remove the ST relay from the engine room relay block.
   

2. Disconnect the clutch pedal switch assembly connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or A40-1 - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or r1-1 - Body ground	Always	10 kΩ or higher

4. Reinstall the ST relay.
   

5. Reconnect the clutch pedal switch assembly connector.
   

NG	Go to step 25

OK

15.CHECK HARNESS AND CONNECTOR (CLUTCH PEDAL SWITCH ASSEMBLY - ECM)

1. Disconnect the ECM connector.
   

2. Disconnect the clutch pedal switch assembly connector.
   

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

   Standard Resistance:

   for LHD

   Tester Connection	Condition	Specified Condition
   G57-6 (STA) or A40-1 - Body ground	Always	10 kΩ or higher

   for RHD

   Tester Connection	Condition	Specified Condition
   G57-6 (STA) or r1-1 - Body ground	Always	10 kΩ or higher

4. Reconnect the ECM connector.
   

5. Reconnect the clutch pedal switch assembly connector.
   

NG	Go to step 25

OK

16.INSPECT CLUTCH PEDAL SWITCH ASSEMBLY

1. Inspect the clutch pedal switch assembly (LandCruiser RM0000032S300DX_01_0001.html).
   

OK	Go to step 21
NG	Go to step 22

17.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - IGNITION SWITCH)

1. Disconnect the park/neutral position switch connector.
   

2. Disconnect the ignition switch assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   C159-4 or G2-1 (ST1) - Body ground	Always	10 kΩ or higher

4. Reconnect the park/neutral position switch connector.
   

5. Reconnect the ignition switch assembly connector.
   

NG	Go to step 25

OK

18.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY)

1. Remove the ST relay from the engine room relay block.
   

2. Disconnect the park/neutral position switch connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   ST relay terminal 2 or C159-5 - Body ground	Always	10 kΩ or higher

4. Reinstall the ST relay.
   

5. Reconnect the park/neutral position switch connector.
   

NG	Go to step 25

OK

19.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)

1. Disconnect the ECM connector.
   

2. Disconnect the park/neutral position switch connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   C159-5 or G57-6 (STA) - Body ground	Always	10 kΩ or higher

4. Reconnect the ECM connector.
   

5. Reconnect the park/neutral position switch connector.
   

NG	Go to step 25

OK

20.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

1. Inspect the park/neutral position switch assembly (LandCruiser RM000002BKX04GX.html).
   

NG	Go to step 23

OK

21.REPLACE ECM

1. Replace the ECM (LandCruiser RM0000013Z002CX.html).
   

NEXT	Go to step 26

22.REPLACE CLUTCH PEDAL SWITCH ASSEMBLY

1. Replace the clutch pedal switch assembly (LandCruiser RM00000176C00OX.html).
   

NEXT	Go to step 26

23.REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

1. Replace the park/neutral position switch assembly (LandCruiser RM0000010NC089X.html).
   

NEXT	Go to step 26

24.REPLACE IGNITION SWITCH

1. Replace the ignition switch assembly (LandCruiser RM000000YK103MX.html).
   

NEXT	Go to step 26

25.REPAIR OR REPLACE HARNESS OR CONNECTOR

1. Repair or replace the harness or connector.
   

NEXT

26.CONFIRM WHETHER DTC OUTPUT RECURS

1. Connect the intelligent tester to the DLC3.
   

2. Clear the DTCs (LandCruiser RM000000PDK1DJX.html).
   

3. Turn the ignition switch off.
   

4. Turn the ignition switch to ON.
   

5. Drive the vehicle for 25 seconds or more at a speed of 20 km/h (12.5 mph) or more and an engine speed of 1000 rpm or more.
   

6. Confirm that the DTC is not output again.
   

NEXT
END