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Check if diagnosis code is set in the
ETACS-ECU.
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Q.
Is the diagnosis code set?
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Diagnose the ETACS-ECU. Refer to GROUP
54A, Diagnosis .
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Q.
Is the check result normal?
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(1)Remove the relay, and measure at the relay box
side.
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(2)Measure the voltage between the horn relay connector
(power supply terminal) and
the body earth. OK: System voltage
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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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|
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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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![](../../../img/54/AC607630AB00ENG.png)
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Connect the battery as shown, and verify that
the horn sounds.
Q.
Is the check result normal?
Go to Step 8.
Replace the horn
(HI) or (LO). Then go to Step 8.
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Q.
Does the theft-alarm system work normally?
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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 ETACS-ECU (Refer to ).
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