Theft Deterrent Keyless Entry. Entry And Start System (For Start Function) Engine Does Not Start

The push-button start function uses a push-type engine switch, which the driver can operate by merely carrying the key. This system consists primarily of the power management control ECU, engine switch, ID code box, steering lock ECU, key, ACC relay, IG1 relay, IG2 relay and certification ECU. The power management control ECU controls the system. This function operates in cooperation with the entry and start system.

WIRING DIAGRAM

Refer to the SFI system*1, *2 or ECD system*3, *4, *5 (DTC P0617):
*1: for 1GR-FE (LandCruiser RM000000TA01K9X_05.html).
*2: for 2TR-FE (LandCruiser RM000000TA01KOX_05.html).
*3: for 1KD-FTV (LandCruiser RM000000TA01KAX_05.html).
*4: for 1GD-FTV (LandCruiser RM000000TA01LRX_05.html).
*5: for 1GD-FTV (w/ Urea SCR System) (LandCruiser RM000000TA01L6X_05.html).

Refer to DTC B2284 (LandCruiser RM000000XEW0HLX.html).

INSPECTION PROCEDURE

NOTICE:

When using the intelligent tester with the engine switch off to troubleshoot: Connect the intelligent tester to the vehicle and turn a courtesy light switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.
Before performing the inspection, check that there are no problems related to the CAN communication system and LIN communication system.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

After the certification ECU, steering lock actuator assembly (steering lock ECU) and/or ID code box is replaced, perform the registration procedures described in the Service Bulletin.

1.CHECK IF ENGINE STARTS (INITIALIZE STEERING LOCK)

Place the key on the seat. Move the shift lever to P*1 and depress the brake pedal*1 or clutch pedal*2.
*1: for Automatic Transmission
*2: for Manual Transmission

Check that the engine switch indicator is illuminated in green, push the engine switch, and check that the engine starts.

Open and close the driver side door with the engine switch off.

Check if the engine can be started.
OK:
Engine can be started.
HINT:
After the battery is discharged and then recharged, the engine may not start unless the steering lock is initialized using the above procedure.

Go to step 2

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)

2.READ VALUE USING INTELLIGENT TESTER (POWER SUPPLY OPEN) AND CHECK FOR DTC

Read the value using the intelligent tester (Power Supply Open).
1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the intelligent tester on.
4. Enter the following menus: Body / Entry&Start / Data List.
5. According to the display on the intelligent tester, read the Data List.
  
  Entry&Start
  Tester Display
  Measurement Item/Range
  Normal Condition
  Diagnostic Note
  Power Supply Open
  Power supply open / OK or NG (Past)
  OK: Power supply normal
  NG (Past): Power supply open occurred in past
  -

Check for DTCs.
1. Enter the following menus: Body / (desired system) / DTC.
2. Read the DTCs.
  Result
  Result
  Proceed to
  No DTC is output, power supply open has not occurred in past
  A
  DTCs other than B2782 are output
  B
  Power supply open has occurred in past and/or DTC B2782 is output
  C

GO TO DTC CHART (LandCruiser RM000000XIZ0K8X.html)

GO TO STEERING LOCK SYSTEM (B2782) (LandCruiser RM000001T1F071X.html)

A

3.CHECK ENGINE SWITCH CONDITION

Check if the power source mode changes.

When the key is inside the vehicle and the shift lever is in P*, push the engine switch and check that the power source mode changes.
*: for Automatic Transmission

Result
Result	Proceed to
OK: off → on (ACC) → on (IG) → off	A
Power source mode does not change to on (IG) or on (ACC).	B
Power source mode does not change to on (IG).	C
Power source mode does not change to on (ACC).	D

GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC) (LandCruiser RM000003U3G028X.html)

GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG) (LandCruiser RM000003U3H029X.html)

GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC) (LandCruiser RM000003U3I029X.html)

A

4.CHECK CRANKING FUNCTION

Check the engine cranking function.
1. for Automatic Transmission: When there is fuel in the fuel tank, the key is inside the vehicle and the shift lever is in P, check that depressing the brake pedal and pressing the engine switch cranks the engine.
2. for Manual Transmission: When there is fuel in the fuel tank and the key is inside the vehicle, check that depressing the clutch pedal and pressing the engine switch cranks the engine.
  OK:
  Engine cranks.
  Result
  Result
  Proceed to
  OK (for 1GR-FE and 2TR-FE)
  A
  OK (for 1KD-FTV and 1GD-FTV)
  B
  NG
  C
  HINT:
  1. for 1GR-FE:
    If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000PD915IX.html).
  2. for 2TR-FE:
    If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000VNB00DX.html).
  3. for 1KD-FTV:
    If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0A9X.html).
  4. for 1GD-FTV:
    If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ADX.html).
  5. for 1GD-FTV (w/ Urea SCR System):
    If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ACX.html).

GO TO ECD SYSTEM

Go to step 5

GO TO SFI SYSTEM

5.INSPECT PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH

for Automatic Transmission:
1. Disconnect the C159 park/neutral position switch connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  4 (B) - 5 (L)
  Shift lever in P or N
  Below 1 Ω
  Shift lever not in P or N
  10 kΩ or higher
  Text in Illustration
  *a
  Component without harness connected
  (Park/Neutral Position Switch)

Text in Illustration
*a	Component without harness connected (Park/Neutral Position Switch)

for Manual Transmission:
1. Disconnect the A40*1, A41*2 or r1*3 clutch start switch connector.
  HINT:
  1. *1: for LHD (except 2TR-FE)
  2. *2: for LHD (for 2TR-FE)
  3. *3: for RHD
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  1 - 2
  Pushed in
  (Clutch pedal depressed)
  Below 1 Ω
  Released
  (Clutch pedal released)
  10 kΩ or higher
  Text in Illustration
  *a
  Component without harness connected
  (Clutch Start Switch Assembly)

Text in Illustration
*a	Component without harness connected (Clutch Start Switch Assembly)

Go to step 19

OK

6.INSPECT ST RELAY

for 1GR-FE and 2TR-FE:
1. Remove the ST relay from the engine room relay block.
2. Measure the resistance according value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  3 - 5
  Battery voltage not applied to terminals 1 and 2
  10 kΩ or higher
  Battery voltage applied to terminals 1 and 2
  Below 1 Ω

for 1KD-FTV and 1GD-FTV:
1. Remove the ST relay from the engine room relay block.
2. Measure the resistance according value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  3 - 5
  Battery voltage not applied to terminals 1 and 2
  10 kΩ or higher
  Battery voltage applied to terminals 1 and 2
  Below 1 Ω

Go to step 19

OK

7.CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Entry And Start System (For Start Function) Engine Does Not Start

Disconnect the G50 power management control ECU connector.

for Automatic Transmission:
Move the shift lever to P or N.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G50-3 (STAR) - Body ground
20°C (68°F)
93.8 to 136.3 Ω
Text in Illustration
*a
Rear view of wire harness connector
(to Power Management Control ECU)

Go to step 19

OK

8.READ VALUE USING INTELLIGENT TESTER (STOP LIGHT SWITCH OR CLUTCH START SWITCH)

for Automatic Transmission:
1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the intelligent tester on.
4. Enter the following menus: Body / Power Source Control / Data List.
5. According to the display on the intelligent tester, read the Data List.
  
  Power Source Control
  Tester Display
  Measurement Item/Range
  Normal Condition
  Diagnostic Note
  Stop Light Switch1
  Stop light switch 1 / ON or OFF
  ON: Brake pedal depressed
  OFF: Brake pedal released
  -
  OK:
  ON (brake pedal depressed) or OFF (brake pedal released) appears on the screen according to the condition of the brake pedal.

for Manual Transmission:

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Power Source Control / Data List.

According to the display on the intelligent tester, read the Data List.

Power Source Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Neutral SW/ Clutch SW	Status of the clutch start switch/ ON or OFF	ON: Clutch pedal depressed OFF: Clutch pedal released	-

OK:: ON (clutch pedal depressed) or OFF (clutch pedal released) appears on the screen according to the condition of the clutch pedal.

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

Go to step 15

REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

A

9.READ VALUE USING INTELLIGENT TESTER (STEERING UNLOCK SWITCH)

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG).

Turn the intelligent tester on.

Enter the following menus: Body / Power Source Control / Data List.

According to the display on the intelligent tester, read the Data List.

Power Source Control
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Steering Unlock Switch
Steering unlock switch / ON or OFF
ON: Steering lock released
OFF: Steering lock locked
-
OK:
ON (steering lock released) or OFF (steering lock locked) appears on the screen according to the steering lock condition.

Go to step 17

OK

10.CHECK STEERING LOCK

Turn the engine switch from off to on (ACC) and check that the steering lock moves to the released position.
OK:
Lock moves to released position.

GO TO STEERING LOCK SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000001T1306UX.html)

OK

11.READ VALUE USING INTELLIGENT TESTER (ENGINE START REQUEST)

Connect the intelligent tester to the DLC3.

Turn the intelligent tester on.
HINT:
When using the intelligent tester with the engine switch off, turn any of the door courtesy light switches on and off repeatedly at intervals of 1.5 seconds or less until communication between the tester and vehicle starts.

Enter the following menus: Body / Entry&Start / Data List.

According to the display on the intelligent tester, read the Data List.

Turn the engine switch on (IG).

Entry&Start
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Engine Start Request
Start request signal response / OK or NG
OK: Received
NG: Not received
-
OK:
OK appears on the screen.

REPLACE CERTIFICATION ECU

OK

12.READ VALUE USING INTELLIGENT TESTER (L CODE CHECK)

Connect the intelligent tester to the DLC3.

Turn the intelligent tester on.
HINT:
When using the intelligent tester with the engine switch off, turn any of the door courtesy light switches on and off repeatedly at intervals of 1.5 seconds or less until communication between the tester and vehicle starts.

Enter the following menus: Body / Entry&Start / Data List.

According to the display on the intelligent tester, read the Data List.

Turn the engine switch on (IG).

Entry&Start
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
L Code Check	L code certification result / OK or NG	OK: L code certification result normal NG: L code certification result abnormal	-

OK:: OK (L code certification result normal) appears on the screen.

GO TO ENGINE IMMOBILISER SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000000QY40G3X.html)

OK

13.READ VALUE USING INTELLIGENT TESTER (S CODE CHECK)

Connect the intelligent tester to the DLC3.

Turn the intelligent tester on.
HINT:
When using the intelligent tester with the engine switch off, turn any of the door courtesy light switches on and off repeatedly at intervals of 1.5 seconds or less until communication between the tester and vehicle starts.

Enter the following menus: Body / Entry&Start / Data List.

According to the display on the intelligent tester, read the Data List.

Turn the engine switch on (IG).

Entry&Start
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
S Code Check	S code certification result / OK or NG	OK: S code certification result normal NG: S code certification result abnormal	-

OK:: OK (S code certification result normal) appears on the screen.

GO TO ENGINE IMMOBILISER SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (LandCruiser RM000000QY40G3X.html)

OK

14.READ VALUE USING INTELLIGENT TESTER (STARTER REQUEST SIGNAL)

Connect the intelligent tester to the DLC3.

Turn the intelligent tester on.
HINT:
When using the intelligent tester with the engine switch off, turn any of the door courtesy light switches on and off repeatedly at intervals of 1.5 seconds or less until communication between the tester and vehicle starts.

Enter the following menus: Body / Power Source Control / Data List.

According to the display on the intelligent tester, read the Data List.

Turn the engine switch on (IG).

Power Source Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Starter Request Signal	Starter request signal monitor / ON or OFF	ON: ST relay on OFF: ST relay off	for Automatic Transmission: The engine switch is pressed and held with the shift lever in P or N. for Manual Transmission: The engine switch is pressed and held.

NOTICE:

Check that the engine switch indicator is illuminated in green and push the engine switch.

OK:: The Data List item changes from OFF to ON when the engine switch is pushed.

Result
Result	Proceed to
OK (for 1GR-FE and 2TR-FE)	A
OK (for 1KD-FTV and 1GD-FTV)	B
NG	C

HINT:

for 1GR-FE:
If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000PD915IX.html).
for 2TR-FE:
If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000VNB00DX.html).
for 1KD-FTV:
If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0A9X.html).
for 1GD-FTV:
If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ADX.html).
for 1GD-FTV (w/ Urea SCR System):
If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ACX.html).

GO TO ECD SYSTEM

REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

GO TO SFI SYSTEM

15.INSPECT STOP LIGHT SWITCH ASSEMBLY

Inspect the stop light switch assembly (LandCruiser RM000003QJR00YX_01_0001.html).

REPLACE STOP LIGHT SWITCH ASSEMBLY (LandCruiser RM000003MWQ02KX.html)

OK

16.CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STOP LIGHT SWITCH ASSEMBLY)

Disconnect the G50 power management control ECU connector.

Disconnect the A85 stop light switch assembly connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G50-11 (STP1) - A85-2 (L)
Always
Below 1 Ω
G50-11 (STP1) or A85-2 (L) - Body ground
Always
10 kΩ or higher

Reconnect the A85 stop light switch assembly connector.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Condition
Specified Condition
G50-11 (STP1) - Body ground
Brake pedal not depressed
Below 1 V
Brake pedal depressed
([Voltage at terminal AM21 or AM22] minus 2.0 V) or higher
Text in Illustration
*a
Rear view of wire harness connector
(to Power Management Control ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

17.CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)

Disconnect the G51 power management control ECU connector.

Disconnect the G35 steering lock ECU connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G51-3 (SLP) - G35-4 (SLP1)
Always
Below 1 Ω
G51-3 (SLP) or G35-4 (SLP1) - Body ground
Always
10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

18.INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G35-4 (SLP1) - Body ground
Steering lock locked
10 kΩ or higher
G35-4 (SLP1) - Body ground
Steering lock released
Below 1 Ω
Text in Illustration
*a
Component with harness connected
(Steering Lock ECU)

Result
Result		Proceed to
OK		A
NG	for Manual Tilt and Manual Telescopic Steering Column	B
	for Power Tilt and Power Telescopic Steering Column	C

REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (LandCruiser RM0000039SI030X.html)

REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (LandCruiser RM0000039SI031X.html)

REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

19.REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE ST RELAY, PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH

Replace the ST relay, park/neutral position switch or clutch start switch with a new or normally functioning part, or repair or replace any damaged wire harness or connector.

NEXT

20.READ VALUE USING INTELLIGENT TESTER (STARTER REQUEST SIGNAL)

Connect the intelligent tester to the DLC3.

Turn the intelligent tester on.
HINT:
When using the intelligent tester with the engine switch off, turn any of the door courtesy light switches on and off repeatedly at intervals of 1.5 seconds or less until communication between the tester and vehicle starts.

Enter the following menus: Body / Power Source Control / Data List.

According to the display on the intelligent tester, read the Data List.

Turn the engine switch on (IG).

Power Source Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Starter Request Signal	Starter request signal monitor / ON or OFF	ON: ST relay on OFF: ST relay off	for Automatic Transmission: The engine switch is pressed and held with the shift lever in P or N. for Manual Transmission: The engine switch is pressed and held.

NOTICE:

Check that the engine switch indicator is illuminated in green and push the engine switch.

OK:: The Data List item changes from OFF to ON when the engine switch is pushed.

REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

OK

21.CHECK IF ENGINE STARTS

Place the key on the seat. Move the shift lever to P*1 and depress the brake pedal*1 or clutch pedal*2.
1. *1: for Automatic Transmission
2. *2: for Manual Transmission

Check that the engine switch indicator is illuminated in green, push the engine switch and check that the engine starts.

Open and close the driver side door with the engine switch off.

Check if the engine can be started.
OK:
Engine can be started.
Result
Result
Proceed to
OK
A
NG (for 1GR-FE and 2TR-FE)
B
NG (for 1KD-FTV and 1GD-FTV)
C
HINT:
1. After the battery is discharged and then recharged, the engine may not start unless the steering lock is initialized using the above procedure.
2. for 1GR-FE:
  If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000PD915IX.html).
3. for 2TR-FE:
  If it is necessary to refer to the SFI system, refer to the following procedure (LandCruiser RM000000VNB00DX.html).
4. for 1KD-FTV:
  If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0A9X.html).
5. for 1GD-FTV:
  If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ADX.html).
6. for 1GD-FTV (w/ Urea SCR System):
  If it is necessary to refer to the ECD system, refer to the following procedure (LandCruiser RM0000012WB0ACX.html).

GO TO SFI SYSTEM

GO TO ECD SYSTEM

END

Result	Proceed to
No DTC is output, power supply open has not occurred in past	A
DTCs other than B2782 are output	B
Power supply open has occurred in past and/or DTC B2782 is output	C

Tester Connection	Condition	Specified Condition
4 (B) - 5 (L)	Shift lever in P or N	Below 1 Ω
4 (B) - 5 (L)	Shift lever not in P or N	10 kΩ or higher

Result	Proceed to
OK	A
NG (for 1GR-FE and 2TR-FE)	B
NG (for 1KD-FTV and 1GD-FTV)	C