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- Measure engine-ECU terminal voltage.
- Engine: Idling
- Voltage between terminal BFAN and body earth.
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OK:
System voltage (when blower speed selection dial is "3 (MH)" position) 1 V or less (when blower switch is except "3 (MH)" position)
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Q.
Is the check result normal?
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Check A/C system (Refer to GROUP 55A - Troubleshooting - Check
Chart for Trouble Symptoms.
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- Check output line for short circuit.
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Q.
Is the check result normal?
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Repair or replace the connector, or repair the damaged harness wire.
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Q.
Does the trouble symptom persist?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions).
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