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If any of the headlamps does not
illuminate, the wiring harness connector(s), the bulb
or the fuse may be defective or burned out.
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- Malfunction of the headlamp bulbs
- Damaged harness wires and connectors
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![](../../../img/54/AC313372AB00ENG.png)
![](../../../img/54/AC313370AB00ENG.png)
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Q.
Is the check result normal?
Go to Step
2.
Repair
the defective connector.
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Check the bulb of the lamp which
does not illuminate.
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Q.
Is the check result normal?
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Replace the bulb of
the lamp which does not illuminate.
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![](../../../img/54/AC313372AB00ENG.png)
![](../../../img/54/AC313370AB00ENG.png)
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(1)Disconnect the connector, and
measure at the wiring harness side.
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![](../../../img/54/AC310506AZ00ENG.png)
![](../../../img/54/AC310506DC00ENG.png)
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(2)Check the resistance between the
lamp connector and body earth.
- Resistance between A-35 headlamp (HI: RH) connector
terminal No.2 and body earth
- Resistance between A-21 headlamp (HI: LH) connector
terminal No.2 and body earth
- Resistance between A-53 discharge-ECU (RH) connector
terminal No.1 and body earth
- Resistance between A-44 discharge-ECU (LH) connector
terminal No.1 and body earth
OK: 2 Ω or less
Q.
Is the check result normal?
Go to Step
6.
Go to Step
4.
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![](../../../img/54/AC313371AE00ENG.png)
![](../../../img/54/AC313369AB00ENG.png)
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Q.
Is the check result normal?
Go to Step
5.
Repair
the defective connector.
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![](../../../img/54/AC313372AC00ENG.png)
![](../../../img/54/AC313370AC00ENG.png)
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- Check the earth wires for open circuit.
Q.
Is the check result normal?
Go to Step
8.
Repair
the wiring harness.
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![](../../../img/54/AC313588AB00ENG.png)
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Q.
Is the check result normal?
Go to Step
7.
Repair
the defective connector.
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![](../../../img/54/AC313588AB00ENG.png)
![](../../../img/54/AC313372AB00ENG.png)
![](../../../img/54/AC313370AB00ENG.png)
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- Check the output lines for open circuit.
Q.
Is the check result normal?
Go to Step
8.
Repair
the wiring harness.
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(1)Replace the socket of the defective
headlamp.
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(2)Check that the headlamps operate
normally.
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Q.
Is the check result normal?
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The trouble can be
an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction ).
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Replace the headlamp
assembly.
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