Toyota Venza manuals

Toyota Venza: Taillight Relay Circuit

DESCRIPTION

The main body ECU (driver side junction block assembly) controls the operation of the TAIL relay.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Active Test.

(e) Check that the relay operates.

Main Body

Tester Display

Test Part

Control Range

Diagnostic Note

Taillight Relay

Taillight relay

ON/OFF

-

OK:

Taillight relay operates. (Taillights illuminate.)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

2.

INSPECT TAILLIGHT RELAY (TAIL)

(a) Remove the taillight relay from the main body ECU (driver side junction block assembly).


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 - 5

Voltage is not applied between terminals 1 and 2

10 kΩ or higher

Apply the battery voltage between terminals 1 and 2

Below 1 Ω

3 - 4

Voltage is not applied between terminals 1 and 2

Below 1 Ω

Apply the battery voltage between terminals 1 and 2

10 kΩ or higher


NG

REPLACE TAILLIGHT RELAY


OK

3.

CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

(a) Disconnect the 2A main body ECU (driver side junction block assembly) connector.


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

Standard Voltage:

Tester Connection

Condition

Specified Condition

2A-1 - Body ground

Always

11 to 14 V

Text in Illustration

*1

Front view of wire harness connector

(to Main Body ECU (Driver Side Junction Block Assembly))


OK

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Parking Brake Switch Circuit
DESCRIPTION The main body ECU (driver side junction block assembly) detects the condition of the parking brake switch. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHS ...

Headlight Beam Level Control Actuator Circuit
DESCRIPTION The headlight leveling ECU assembly actuates the headlight leveling motor according to vehicle conditions. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHS ...

Other materials about Toyota Venza:

Mechanical System Tests
MECHANICAL SYSTEM TESTS 1. STALL SPEED TEST HINT: This test is to check the overall performance of the engine and transaxle. CAUTION: Driving test should be done on a paved surface (a surface that is not slippery). To ensure safety, perfor ...

Removal
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing (See page ). If the front seat side airbag assembly was deployed, replace the front seat side airbag assembly, front seat frame assembly wit ...

Removal
REMOVAL PROCEDURE 1. REMOVE REAR SEAT HEADREST ASSEMBLY 2. REMOVE REAR SEAT INNER TRACK BRACKET COVER 3. REMOVE REAR SEAT OUTER TRACK BRACKET COVER 4. DISCONNECT REAR SEAT NO. 2 RECLINING CONTROL CABLE SUB-ASSEMBLY 5. REMOVE REAR SEAT ASSEMBL ...

© 2016-2019 Copyright www.tovenza.com

0.2572