Toyota Camry (XV70): High Beam Headlight Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the high beam headlights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
- Check the operation of the low beam headlights. If the low beam headlights do not operate normally, refer to Problem Symptoms Table.
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- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*
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- *: w/ Smart Key System
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) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test|
Tester Display | Measurement Item |
Control Range | Diagnostic Note |
|---|---|---|---|
|
Head Light Hi | High beam headlights |
OFF or ON | - |
|
Tester Display |
|---|
|
Head Light Hi |
OK:
High beam headlights illuminate.
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
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|
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2. | INSPECT DIM RELAY |
(a) Inspect the DIM relay.
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| NG | |
REPLACE DIM RELAY |
|
|
3. | CHECK HARNESS AND CONNECTOR (POWER SOURCE - DIM RELAY) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
2 (DIM relay) - Body ground |
Always | 11 to 14 V |
|
5 (DIM relay) - Body ground |
Always | 11 to 14 V |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. | CHECK HARNESS AND CONNECTOR (DIM RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the K52 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 |
|---|---|---|
|
1 (DIM relay) - K52-13 (DIM) |
Always | Below 1 Ω |
|
1 (DIM relay) or K52-13 (DIM) - Body ground |
Always | 10 kΩ or higher |
| OK | |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Components
COMPONENTS ILLUSTRATION
*A for LH Side
*B for RH Side
*1 LUGGAGE COMPARTMENT DOOR STRIKER COVER
*2 LUGGAGE COMPARTMENT TRIM INNER COVER LH
*3 LUG
Removal
REMOVAL CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE SPARE WHEEL COVER ASSEMBLY
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION
*1 FRONT NO. 2 SPEAKER ASSEMBLY RH
*2 NAVIGATION ANTENNA ASSEMBLY
- Telephone Sub
*3 RADIO AND DISPLAY RECEIVER ASSEMBLY
*4 DCM (TELEMATICS TRANSCEIVER)
*5 NAVIGATION ECU (w/ Navigation System)
*6 DLC3 ILLUSTRA
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever DTCs are detected, the blind spot monitor sensor stores the current vehicle (sensor) state as freeze frame data.
CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG). (c) Turn the blind spot monitor sy
