Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (ECM - BATTERY AND BODY GROUND)

CAN COMMUNICATION SYSTEM (for RHD with Entry and Start System) - ECM Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
ECM Communication Stop Mode
Either condition is met:
  1. "ECM (Engine)" is not displayed on "Bus Check".
  2. "ECM Communication Stop Mode" in "DTC Combination Table" applies.
  1. Power source or inside ECM
  2. ECM

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (ECM - BATTERY AND BODY GROUND)


  1. for 1GR-FE:



    1. Disconnect the ECM connectors.


      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


      Text in Illustration
      *a
      		Front view of wire harness connector
      (to ECM)
      		-
      		-

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      C36-12 (E1) - Body ground
      		Always
      		Below 1 Ω
      C36-23 (E01) - Body ground
      		Always
      		Below 1 Ω
      C37-14 (E02) - Body ground
      		Always
      		Below 1 Ω
      C36-29 (ME01) - Body ground
      		Always
      		Below 1 Ω
      G55-3 (EC) - Body ground
      		Always
      		Below 1 Ω

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      G55-24 (BATT) - Body ground
      		Always
      		11 to 14 V
      G55-22 (+B2) - Body ground
      		Battery positive (+) voltage applied to terminal G56-36 (MREL)
      		11 to 14 V
      G55-23 (+B) - Body ground
      		Battery positive (+) voltage applied to terminal G56-36 (MREL)
      		11 to 14 V


  1. for 1KD-FTV:



    1. Disconnect the ECM connectors.


      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


      Text in Illustration
      *a
      		Front view of wire harness connector
      (to ECM)
      		-
      		-

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      C93-1 (E1) - Body ground
      		Always
      		Below 1 Ω
      C93-12 (E01) - Body ground
      		Always
      		Below 1 Ω
      C93-13 (E02) - Body ground
      		Always
      		Below 1 Ω
      C93-8 (ME01) - Body ground
      		Always
      		Below 1 Ω
      G57-11 (EC) - Body ground
      		Always
      		Below 1 Ω

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      G57-23 (BATT) - Body ground
      		Always
      		11 to 14 V
      G57-17 (+B2) - Body ground
      		Battery positive (+) voltage applied to terminal G58-11 (MREL)
      		11 to 14 V
      G57-24 (+B) - Body ground
      		Battery positive (+) voltage applied to terminal G58-11 (MREL)
      		11 to 14 V


  1. for 1GD-FTV:



    1. Disconnect the ECM connectors.


      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Networking.Lin Communication System.Can Communication System (For Rhd With Entry And Start System) Ecm Communication Stop Mode


      Text in Illustration
      *a
      		Front view of wire harness connector
      (to ECM)
      		-
      		-

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      C152-1 (E1) - Body ground
      		Always
      		Below 1 Ω
      C151-3 (E01) - Body ground
      		Always
      		Below 1 Ω
      C152-4 (E02) - Body ground
      		Always
      		Below 1 Ω
      C152-3 (ME01) - Body ground
      		Always
      		Below 1 Ω
      G185-8 (EC) - Body ground
      		Always
      		Below 1 Ω

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      G185-1 (BATT) - Body ground
      		Always
      		11 to 14 V
      G185-2 (+B) - Body ground
      		Battery positive (+) voltage applied to terminal G184-14 (MREL)
      		11 to 14 V
      G185-3 (+B2) - Body ground
      		Battery positive (+) voltage applied to terminal G184-14 (MREL)
      		11 to 14 V
      G185-4 (+B3) - Body ground
      		Battery positive (+) voltage applied to terminal G184-14 (MREL)
      		11 to 14 V
Result
Result
Proceed to
OK (for 1GR-FE)
A
OK (for 1KD-FTV)
B
OK (for 1GD-FTV)
C
NG
D


B
REPLACE ECM (LandCruiser RM0000013Z002CX.html)

C
REPLACE ECM (LandCruiser RM0000013Z002DX.html)

D
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE ECM (LandCruiser RM00000329203TX.html)