Toyota Venza: Headlight Signal Circuit
DESCRIPTION
The headlight leveling ECU assembly detects the low beam headlights status.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
First check that the low beam headlights operate normally.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - ECU) |
|
(a) Disconnect the A40 headlight leveling ECU assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A40-3 (B2) - Body ground |
Light control switch in head position |
11 to 14 V |
|
*1 |
Front view of wire harness connector (to Headlight Leveling ECU assembly) |
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Front Fog Light Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) controls the fog light
relay.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this ...
Light Control Switch Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) receives the following
switch information:
Light control switch position off, tail, head or AUTO
Dimmer switch positi ...
Other materials about Toyota Venza:
Removal
REMOVAL
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before servicing (See page
).
NOTICE:
Be sure to read "Precaution" thorou ...
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE LH
(a) Disengage the 3 clips, 7 claws and guide, and remove the front door
scuff plate LH.
2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is stored during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
Main Body
DTC Code
Detection Ite ...
0.1725