CAN COMMUNICATION SYSTEM (for LHD) - ECM Communication Stop Mode

DESCRIPTION

Detection Item	Symptom	Trouble Area
ECM Communication Stop Mode	Either 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

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

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 A38 and C45 ECM connectors.

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

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

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

for 1VD-FTV
Tester Connection Condition Specified Condition
C45-81 (E1) - Body ground Always Below 1 Ω
C45-21 (E02) - Body ground Always Below 1 Ω
C45-22 (E01) - Body ground Always Below 1 Ω

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

except 1VD-FTV
Tester Connection	Condition	Specified Condition
A38-1 (BATT) - Body ground	Always	11 to 14 V
A38-2 (+B2) - Body ground	Battery positive (+) voltage applied to terminal A38-34 (MREL)	11 to 14 V
A38-3 (+B) - Body ground	Battery positive (+) voltage applied to terminal A38-34 (MREL)	11 to 14 V

for 1VD-FTV
Tester Connection Condition Specified Condition
A38-20 (BATT) - Body ground Always 11 to 14 V
A38-2 (+B) - Body ground Battery positive (+) voltage applied to terminal A38-44 (MREL) 11 to 14 V

B

REPLACE ECM ()

C

REPLACE ECM ()

D

REPLACE ECM ()

E

REPAIR OR REPLACE HARNESS OR CONNECTOR

A

REPLACE ECM ()