Toyota Corolla Cross: Automatic High Beam Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the ON/OFF signal of the automatic high beam switch (turn signal switch).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
for HEV Model: Click here
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for Gasoline Model: Click here
- *1: w/ Smart Key System
PROCEDURE
|
1. |
READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Auto High Beam Main Switch |
Adaptive high beam switch signal |
OFF or ON |
OFF: Adaptive high beam switch not pressed ON: Adaptive high beam switch pressed |
- |
|
Tester Display |
|---|
|
Auto High Beam Main Switch |
OK:
Normal conditions listed above are displayed.
| OK | .gif)
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
.gif)
|
2. |
INSPECT AUTO HIGH BEAM SWITCH |
Click here
| NG |
|
REPLACE AUTO HIGH BEAM SWITCH |
|
|
3. |
INSPECT HARNESS AND CONNECTOR (AUTO HIGH BEAM SWITCH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) |
(a) Disconnect the I85 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I52-5 (+B) -I85-14 (AHBI) |
Always |
Below 1 Ω |
|
I52-5 (+B) - Body ground |
Always |
10 kΩ or higher |
|
I52-2 (E) - Body ground |
Always |
Below 1 Ω |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Automatic High Beam Switch Indicator does not Come ON
DESCRIPTION
When the automatic high beam system is on, the main body ECU
(multiplex network body ECU) illuminates the auto high beam switch indicator.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NO
Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization,
or registration) that must be performed after parts are replaced during forward
recognition cam
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DESCRIPTION Refer to DTC P046012. Click here
DTC No. Detection Item
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MIL Note
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