Gateway ECU Communication Stop Mode: Procedure
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CAN BUS WIRE (NETWORK GATEWAY ECU SUB BUS LINE DISCONNECTION)
- Turn the ignition switch off.
- Disconnect the network gateway ECU connector (E23).
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Condition Specified Condition E23-17 (CA1H) - E23-18 (CA1L) Ignition switch off 54 to 69 Ω
NG → REPAIR OR REPLACE NETWORK GATEWAY ECU SUB BUS LINE OR CONNECTOR
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 Condition Specified Condition E23-24 (GND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard voltage
Tester Connection Condition Specified Condition E23-10 (BATT) - Body ground Always 10 to 14 V E23-2 (ACC) - Body ground Ignition switch on (ACC) 10 to 14 V E23-1 (IG) - Body ground Ignition switch on (IG) 10 to 14 V
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → REPLACE NETWORK GATEWAY ECU
- Measure the resistance according to the value(s) in the table below.