Toyota Venza: Clock Display Circuit

Toyota Venza Service Manual / Meter / Gauge / Display / Meter / Gauge System / Clock Display Circuit

DESCRIPTION

The accessory meter assembly uses this circuit to communicate with the combination meter assembly via the direct line. The accessory meter assembly uses this circuit to receive the drive monitor switch signals from the combination meter assembly via the direct line and multi-information display signal from each ECU through the combination meter assembly via the direct line.

HINT:

Each ECU outputs the DTCs when each system has a malfunction.

WIRING DIAGRAM

PROCEDURE

1.	SYSTEM CHECK

(a) Confirm the symptom.

Result	Proceed to
Clock display does not indicate cruise information display (The display only illuminates).	A
Multi-information display does not change when the drive monitor switch is operated.	B

GO TO STEP 5

2.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication DTC is output (See page ).

Result	Proceed to
CAN communication DTC is not output.	A
CAN communication DTC is output.	B

GO TO CAN COMMUNICATION SYSTEM

3.	CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the E2 and F2*1 or F5*2 connectors.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
F2-3 (HSI+)*1 - E2-4 (LCL+)	Always	Below 1 Ω
F2-4 (DATA)*1 - E2-5 (MDAT)	Always	Below 1 Ω
F2-16 (SYNC)*1 - E2-17 (SYNC)	Always	Below 1 Ω
F5-2 (HSI+)*2 - E2-4 (LCL+)	Always	Below 1 Ω
F5-12 (DATA)*2 - E2-5 (MDAT)	Always	Below 1 Ω
F5-6 (SYNC)*2 - E2-17 (SYNC)	Always	Below 1 Ω
E2-4 (LCL+) - Body ground	Always	10 kΩ or higher
E2-5 (MDAT) - Body ground	Always	10 kΩ or higher
E2-17 (SYNC) - Body ground	Always	10 kΩ or higher
F5-16 (SGND)*2 - Body ground	Always	Below 1 Ω
F2-12 (E) - Body ground	Always	Below 1 Ω

*1: w/o Multi-information Display
*2: w/ Multi-information Display

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.	INSPECT COMBINATION METER ASSEMBLY

(a) Reconnect the E2 connector.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
F2-3 (HSI+)*1 - Body ground	Ignition switch ON	Pulse generation
F2-4 (DATA)*1 - Body ground	Ignition switch ON	Pulse generation
F2-16 (SYNC)*1 - Body ground	Ignition switch ON	Pulse generation
F5-2 (HSI+)*2 - Body ground	Ignition switch ON	Pulse generation
F5-12 (DATA)*2 - Body ground	Ignition switch ON	Pulse generation
F5-6 (SYNC)*2 - Body ground	Ignition switch ON	Pulse generation

*1: w/o Multi-information Display
*2: w/ Multi-information Display

Text in Illustration

Front view of wire harness connector

(to Accessory Meter Assembly (w/o Multi-information Display))

Front view of wire harness connector

(to Accessory Meter Assembly (w/ Multi-information Display))

REPLACE ACCESSORY METER ASSEMBLY

REPLACE COMBINATION METER ASSEMBLY

5.	CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - DRIVE MONITOR SWITCH)

(a) Disconnect the E2 and D3 connectors.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
E2-6 (A/B) - D3-5 (INFO)	Always	Below 1 Ω
E2-6 (A/B)- Body ground	Always	10 kΩ or higher
E2-7 (RSET) - D3-6 (SEL)	Always	Below 1 Ω
E2-7 (RSET) - Body ground	Always	10 kΩ or higher
E2-18 (E) - D3-7 (STUP)	Always	Below 1 Ω
E2-18 (E)- Body ground	Always	10 kΩ or higher
D3-3 (E) - Body ground	Always	Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.	INSPECT DRIVE MONITOR SWITCH

(a) Disconnect the D3 connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (E) - 5 (INFO)	Ignition switch ON and INFO CLOCK1 or INFO2 switch pressed	Below 1 Ω
3 (E) - 5 (INFO)	Ignition switch ON and INFO CLOCK1 or INFO2 switch released	10 kΩ or higher
3 (E) - 6 (SEL)	Ignition switch ON and RESET H1 or SELECT RESET2 switch pressed	Below 1 Ω
3 (E) - 6 (SEL)	Ignition switch ON and RESET H1 or SELECT RESET2 switch released	10 kΩ or higher
3 (E) - 7 (STUP)	Ignition switch ON and US/M M1 or SETUP2 switch pressed	Below 1 Ω
3 (E) - 7 (STUP)	Ignition switch ON and US/M M1 or SETUP2 switch released	10 kΩ or higher

*1: w/o Multi-information Display
*2: w/ Multi-information Display

Text in Illustration

*1	Component without harness connected (Drive Monitor Switch)

REPLACE COMBINATION METER ASSEMBLY

REPLACE DRIVE MONITOR SWITCH

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