Montero Sport LS 2WD V6-3.0L SOHC (1998)
Ignition Switch: Symptom Related Diagnostic Procedures
Introduction to Ignition Switch Diagnosis
A tone alarm-ECU or ETACS-ECU is mounted in all vehicles. This tone alarm-ECU or ETACS-ECU controls the ignition key reminder and ignition key
hole illumination light timer.
The ignition key reminder tone alarm alerts the driver that the ignition key has not been removed. If any of the following symptoms occur, there is a
malfunction:
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The tone alarm does not stop sounding when the ignition key is turned to the ON position.
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The tone alarm does not stop sounding when the ignition key is removed.
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The tone alarm does not sound when the ignition key is inserted (turned to the "OFF" position) and the driver's door is opened.
The ignition key hole illumination light timer illuminates the ignition switch for certain conditions. If any of the following symptoms occur, there is a
malfunction:
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The ignition key hole illumination light does not go off.
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The ignition key hole illumination light does not illuminate when the driver's's door is opened.
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The ignition key hole illumination light does not go out when the ignition key is turned to the "ON" position.
Ignition Switch Diagnostic Troubleshooting Strategy
Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted all of the possible ways to find an
ignition switch fault.
1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the INSPECTION CHART FOR TROUBLE SYMPTOMS.
4. Verify malfunction is eliminated.
