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If the blower air volume is not changed by operating the blower switch, the blower switch may be defective.
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- Malfunction of the heater resister
- Malfunction of the blower switch
- Damaged wiring harness or connector
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Q.
Is the heater resister in good condition?
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Replace the heater resistor.
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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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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Continuity between terminal 4 and body earth OK: Continuity exists (2 Ω or less)
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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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Q.
Is the blower switch in good condition?
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Replace the heater control panel.
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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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Repair the connector(s) or wiring harness.
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