Toyota Venza: Combination Meter ECU Communication Stop Mode

Toyota Venza Service Manual / Networking / Can Communication System / Combination Meter ECU Communication Stop Mode

DESCRIPTION

Detection Item	Symptom	Trouble Area
Combination Meter ECU Communication Stop Mode	"Combination Meter" is not displayed on "CAN Bus Check" screen of the Techstream. Applies to Combination Meter ECU Communication Stop Mode in DTC Combination Table.	Power source circuit of combination meter Combination meter main wire or connector Combination meter

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Turn the ignition switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires.
Turn the ignition switch off before inspecting CAN bus wires for a ground short.
After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not operating.
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 other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.

PROCEDURE

1.	CHECK CAN BUS WIRE FOR DISCONNECTION (COMBINATION METER MAIN WIRE)

(a) Turn the ignition switch off.

(b) Disconnect the connector of the combination meter.

Text in Illustration

*1	Front view of wire harness connector (to Combination Meter)

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
E1-1 (CANH) - E1-9 (CANL)	ignition switch off	108 to 132 Ω

REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (COMBINATION METER MAIN WIRE)

2.	CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
E2-13 (IG+) - Body ground	Ignition switch ON	11 to 14 V
E2-14 (B) - Body ground	Always	11 to 14 V

Text in Illustration

*1	Front view of wire harness connector (to Combination Meter)

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

3.	CHECK HARNESS AND CONNECTOR (GROUND TERMINAL)

(a) Turn the ignition switch off.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
E2-24 (ES) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to Combination Meter)

REPLACE COMBINATION METER

REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)

Certification ECU Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Certification ECU Communication Stop Mode "Smart Access/Smart Key/Wireless ...

Center Airbag Sensor Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Center Airbag Sensor Communication Stop Mode "SRS Airbag" is not disp ...

Other materials about Toyota Venza:

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems ne ...

Wireless Door Lock Buzzer
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL WIRELESS DOOR LOCK BUZZER (a) Engage the clamp and install the wireless door lock buzzer. (b) Connect the ...

Removal
REMOVAL PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ). 3. REMOVE FR ...