Toyota Sienna Service Manual: Gateway ECU Communication Stop Mode

Toyota Sienna Service Manual / Can communication / Can communication system / Fail-safe chart / Gateway ECU Communication Stop Mode

DESCRIPTION

Detection Item	Symptom	Trouble Area
Gateway ECU Communication Stop Mode	"Gateway" is not displayed on the "Communication Bus Check" screen of the intelligent tester Applies to "Gateway ECU Communication Stop Mode" in the "DTC COMBINATION TABLE"	Power source circuit of gateway ECU Gateway ECU branch wire or connector Network Gateway ECU

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Turn the ignition switch off before measuring the resistances of CAN bus main wires and CAN bus branch wires.
After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.

HINT: Operating the ignition switch, any switches, or any doors triggers related ECU and sensor communication with the CAN. This communication will cause the resistance value to change.

1 CHECK OPEN IN CAN BUS WIRE (ECU MAIN BUS WIRE)

CHECK OPEN IN CAN BUS WIRE (ECU MAIN BUS WIRE)

Turn the ignition switch off.
Disconnect the network gateway ECU connector.
Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK WIRE HARNESS (IG, BATT, GND)

CHECK WIRE HARNESS (IG, BATT, GND)

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

Standard resistance

Standard resistance

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

Standard voltage

Standard voltage

REPLACE NETWORK GATEWAY ECU

Distance Control ECU Communication Stop Mode

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Steering Angle Sensor Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Steering Angle Sensor Communication Stop Mode "Steering angle sensor" is not displayed on ...

Other materials:

Installation
1. INSTALL THROTTLE BODY Install a new throttle body gasket to the intake air surge tank. Install the throttle body with the 4 bolts. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) Connect the 2 water by-pass hoses. Connect the throttle body connector and clamp. 2. ...

Transfer
SST RECOMMENDED TOOLS EQUIPMENT LUBRICANT SSM ...

Data list / active test
HINT: By accessing the DATA LIST displayed on the intelligent tester, you can perform such functions as reading the values of switches and sensors without removing any parts. Reading the DATA LIST as the first step in troubleshooting is one method to shorten labor time. 1. DATA LIST FOR CENTER ...