Can Communication System (For Rhd) - Ecm Communication Stop Mode

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - NETWORKING

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 ItemSymptomTrouble Area
ECM Communication Stop ModeEither condition is met:
"ECM (Engine)" is not displayed on the "Bus Check" screen.
"ECM Communication Stop Mode" in "DTC Communication Table" applies.
Power source or inside of ECM
ECM

WIRING DIAGRAM

Can Communication System (For Rhd) - Ecm Communication Stop Mode. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Can Communication System (For Rhd) - Ecm Communication Stop Mode. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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)

Disconnect the A52 and C46 ECU connectors.

Can Communication System (For Rhd) - Ecm Communication Stop Mode. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Text in Illustration
*Aexcept 1VD-FTV*Bfor 1VD-FTV
*aFront view of wire harness connector
(to ECM)		--

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

  • Standard Resistance:
  • except 1VD-FTV
    Tester ConnectionConditionSpecified Condition
    C46-81 (E1) - Body groundAlwaysBelow 1 Ω
    C46-42 (E02) - Body groundAlwaysBelow 1 Ω
    C46-43 (E01) - Body groundAlwaysBelow 1 Ω
    C46-82 (ME01) - Body groundAlwaysBelow 1 Ω
for 1VD-FTV
Tester ConnectionConditionSpecified Condition
A52-32 (EC) - Body groundAlwaysBelow 1 Ω
C46-81 (E1) - Body groundAlwaysBelow 1 Ω
C46-21 (E02) - Body groundAlwaysBelow 1 Ω
C46-22 (E01) - Body groundAlwaysBelow 1 Ω

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

  • Standard Voltage:
  • except 1VD-FTV
    Tester ConnectionConditionSpecified Condition
    A52-1 (BATT) - Body groundAlways11 to 14 V
    A52-2 (+B2) - Body groundBattery positive (+) voltage applied to terminal A52-34 (MREL) 11 to 14 V
    A52-3 (+B) - Body groundBattery positive (+) voltage applied to terminal A52-34 (MREL) 11 to 14 V
for 1VD-FTV
Tester ConnectionConditionSpecified Condition
A52-20 (BATT) - Body groundAlways11 to 14 V
A52-44 (MREL) - Body groundIgnition switch ON11 to 14 V
A52-2 (+B) - Body groundBattery positive (+) voltage applied to terminal A52-44 (MREL) 11 to 14 V
Result
ResultProceed to
OK (for 1GR-FE)A
OK (for 1UR-FE)B
OK (for 1VD-FTV)C
NGD
B
REPLACE ECM ()
C
REPLACE ECM ()
D
REPAIR OR REPLACE HARNESS OR CONNECTOR
A
REPLACE ECM ()