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If one of the turn-signal lamps does not illuminate, the wiring harness connector(s) or
the bulb may be defective.
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- Defective turn-signal lamp bulb
- Malfunction of side turn-signal lamp assembly <Fender panel type>
- Malfunction of side turn-signal lamp assembly <Door mirror type>
- Damaged harness wires and connectors
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Q.
Which turn-signal lamp fails to illuminate correctly?
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YES (All of the turn-signal lamps illuminate normally) : The procedure is complete.
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NO (Only the front or rear turn-signal lamps does not illuminate normally) : Refer to ETACS diagnosis code chart.
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NO (Only the side turn-signal lamps does not illuminate normally) : Go to Step 2.
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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Measure the resistance between the defective lamp connector terminal and body earth.
- Measure the resistance between the side turn-signal lamp (LH) connector (earth
terminal) and the body earth <Fender panel type>.
- Measure the resistance between the side turn-signal lamp (RH) connector (earth terminal)
and the body earth <Fender panel type>.
- Measure the resistance between the door mirror assembly (LH) connector (earth terminal)
and the body earth <Door mirror type>.
- Measure the resistance between the door mirror assembly (RH) connector (earth terminal)
and the body earth <Door mirror type>.
OK: Continuity exists (2 Ω
or less)
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Q.
Is the check result normal?
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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 use Troubleshooting/inspection Service Points -
How to Cope with Intermittent
Malfunction ).
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Repair the connector(s) or wiring harness.
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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Check that the side turn-signal lamp flashes normally when the turn-signal switch is operated.
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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 use Troubleshooting/inspection Service Points -
How to Cope with Intermittent
Malfunction ).
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Replace the side turn-signal lamp assembly <Fender panel type>,
side turn-signal lamp assembly (Refer to GROUP 51 -
Door Mirror ) <Door
mirror type>.
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