Toyota Venza: Daytime Running Light Relay Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) controls the daytime running lights.
WIRING DIAGRAM
1. for Halogen Headlight
2. for HID Headlight
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 |
|---|---|---|---|
|
Daytime Running Light |
Daytime running light relay |
ON/OFF |
- |
OK:
Relay operates. (Daytime running lights illuminate.)
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (for Halogen Headlight) |
B |
|
NG (for HID Headlight) |
C |
| A | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| C | |
GO TO STEP 5 |
|
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|
2. |
CHECK HEADLIGHT |
(a) Check the operation of the high beam headlights.
OK:
High beam headlights operate normally.
| NG | |
GO TO PROBLEM SYMPTOMS TABLE |
|
|
3. |
INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) |
|
(a) Remove the power distributor (engine room junction block assembly)
from the engine room relay block (See page
|
|
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).
(b) Connect a positive (+) lead from the battery to terminal 1A-1.
(c) Connect a negative (-) lead from the battery to terminal 1F-16.
(d) Check for pulses according to the value(s) in the table below.
Standard:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1D-3 - Battery negative |
Always |
Pulse generation |
|
1D-4 - Battery negative |
Always |
Pulse generation |
|
*1 |
Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) |
| NG | |
REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) |
|
|
4. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - MAIN BODY ECU) |
|
(a) Disconnect the 1F power distributor (engine room junction block assembly) connector. |
|
(b) Disconnect the D51 main body ECU (driver side junction block assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1F-16 - D51-10 (DRL) |
Always |
Below 1 Ω |
|
D51-10 (DRL) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) |
|
*2 |
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 |
|
5. |
INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) |
|
(a) Remove the power distributor (engine room junction block assembly)
from the engine room relay block (See page
|
|
(b) Connect a positive (+) lead from the battery to terminal 1A-1.
(c) Connect a negative (-) lead from the battery to terminal 1F-15.
(d) Check for pulses according to the value(s) in the table below.
Standard:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1D-3 - Battery negative |
Always |
Pulse generation |
|
1D-4 - Battery negative |
Always |
Pulse generation |
|
*1 |
Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) |
| NG | |
REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) |
|
|
6. |
CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - MAIN BODY ECU) |
|
(a) Disconnect the 1F power distributor (engine room junction block assembly) connector. |
|
(b) Disconnect the D51 main body ECU (driver side junction block assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1F-15 - D51-10 (DRL) |
Always |
Below 1 Ω |
|
D51-10 (DRL) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) |
|
*2 |
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 |
Headlight Solenoid Circuit
DESCRIPTION
for HID Headlight:
When the main body ECU receives a high beam turn on signal, the main
body ECU activates the bi-function by controlling the BI-XENON relay. The
bi-func ...
Headlight (HI-BEAM) Circuit
DESCRIPTION
for Halogen Headlight:
The main body ECU (driver side junction block assembly) controls the
high beam headlights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE ...
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Display does not Dim when Light Control Switch is Turned ON
PROCEDURE
1.
CHECK IMAGE QUALITY SETTING
(a) Turn the light control switch to the tail or head position.
(b) Check that the daytime screen setting on the display adjustment screen is
set to on.
Result
...
Terminals Of Ecu
TERMINALS OF ECU
1. REAR TELEVISION CAMERA ASSEMBLY
(a) Disconnect the R21 rear television camera assembly connector.
(b) Measure the voltage on the wire harness side connector according to the value(s)
in the table below.
Terminal No. (Symb ...
AV Signal Stoppage (Low Battery Voltage) (B158F)
DESCRIPTION
This DTC is stored when a video or audio signal is interrupted due to battery
voltage input to the radio and display receiver assembly dropping temporarily.
DTC No.
DTC Detection Condition
Trouble Area
...
0.1721