Inspection Procedure
- CHECK CAN BUS LINE FOR DISCONNECTION (NETWORK GATEWAY ECU SUB BUS LINE)
- Turn the engine switch off.
- Disconnect the network gateway ECU (K66).
- Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Value K66-17 (CA1H) - K66-18 (CA1L) Engine switch off 54 to 69 Ω
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NG: REPAIR OR REPLACE NETWORK GATEWAY ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
OK: Go to next step
- CHECK WIRE HARNESS (BATT, ACC, IG, GND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Value K66-24 (GND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard voltage
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Condition Specified Value K66-10 (BATT) - Body ground Always 10 to 14 V K66-2 (ACC) - Body ground Engine switch on (IG) 10 to 14 V K66-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE NETWORK GATEWAY ECU
- Measure the resistance according to the value(s) in the table below.