Can Communication System (For Rhd) Ecm Communication Stop Mode

Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
Networking. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

CAN COMMUNICATION SYSTEM (for RHD) - 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 the "Bus Check" screen.
  2. "ECM Communication Stop Mode" in "DTC Communication Table" applies.
  1. Power source or inside of ECM
  2. ECM

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Ecm Communication Stop Mode


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) 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. Disconnect the A52 and C46 ECU connectors.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Ecm Communication Stop Mode


    Text in Illustration
    *A
    		except 1VD-FTV
    		*B
    		for 1VD-FTV
    *a
    		Front view of wire harness connector
    (to ECM)
    		-
    		-

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

    Standard Resistance:
    except 1VD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    C46-81 (E1) - Body ground
    		Always
    		Below 1 Ω
    C46-42 (E02) - Body ground
    		Always
    		Below 1 Ω
    C46-43 (E01) - Body ground
    		Always
    		Below 1 Ω
    C46-82 (ME01) - Body ground
    		Always
    		Below 1 Ω
    for 1VD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    A52-32 (EC) - Body ground
    		Always
    		Below 1 Ω
    C46-81 (E1) - Body ground
    		Always
    		Below 1 Ω
    C46-21 (E02) - Body ground
    		Always
    		Below 1 Ω
    C46-22 (E01) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    except 1VD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    A52-1 (BATT) - Body ground
    		Always
    		11 to 14 V
    A52-2 (+B2) - Body ground
    		Battery positive (+) voltage applied to terminal A52-34 (MREL)
    		11 to 14 V
    A52-3 (+B) - Body ground
    		Battery positive (+) voltage applied to terminal A52-34 (MREL)
    		11 to 14 V
    for 1VD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    A52-20 (BATT) - Body ground
    		Always
    		11 to 14 V
    A52-44 (MREL) - Body ground
    		Ignition switch ON
    		11 to 14 V
    A52-2 (+B) - Body ground
    		Battery positive (+) voltage applied to terminal A52-44 (MREL)
    		11 to 14 V
Result
Result
Proceed to
OK (for 1GR-FE)
A
OK (for 1UR-FE)
B
OK (for 1VD-FTV)
C
NG
D


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)

D
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE ECM (Click here)