Toyota Venza: Inner Rear View Mirror Power Source Circuit

Toyota Venza Service Manual / Lighting (ext) / Lighting System / Inner Rear View Mirror Power Source Circuit

DESCRIPTION

This circuit detects the state of the ignition switch, and sends it to the inner rear view mirror assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (BATTERY - INNER REAR VIEW MIRROR ASSEMBLY)

(a) Disconnect the P12 inner rear view mirror assembly connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
P12-1 (IG) - Body ground	Ignition switch ON	11 to 14 V
P12-1 (IG) - Body ground	Ignition switch off	Below 1 V

Text in Illustration

*1	Front view of wire harness connector (to Inner Rear View Mirror Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	CHECK HARNESS AND CONNECTOR (INNER REAR VIEW MIRROR ASSEMBLY - BODY GROUND)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
P12-2 (E) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to Inner Rear View Mirror Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Speed Signal Circuit

DESCRIPTION The headlight leveling ECU assembly receives the vehicle speed signal from the combination meter assembly. HINT: A voltage of 12 V or 5 V is output from each ECU and then inpu ...

LVL Terminal Circuit

DESCRIPTION By connecting terminals LVL and CG of the DLC3, the headlight leveling ECU assembly initializes the height control sensor signal. WIRING DIAGRAM PROCEDURE ...

Other materials about Toyota Venza:

Inspection
INSPECTION PROCEDURE 1. INSPECT UNIVERSAL JOINT SPIDER ASSEMBLY (a) Check the spider bearing axial play by turning the flange while holding the shaft tightly. HINT: If necessary, replace the propeller with center bearing shaft assembly. ...

Installation
INSTALLATION PROCEDURE 1. INSTALL ATF TEMPERATURE SENSOR ASSEMBLY (a) Coat a new O-ring with ATF and install it to the ATF temperature sensor assembly. Text in Illustration *1 O-ring ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE TRANSFER AND TRANSAXLE SETTING STUD BOLT (a) Remove the 4 transfer and transaxle setting stud bolts. 2. REMOVE NO. 2 TRANSFER CASE PLUG (a) Remove the No. ...