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Q.
Is the check result normal?
Go to Step 2.
Repair the connector.
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- Check the blower relay earth wires for open circuit.
Q.
Is the check result normal?
Go to Step 3.
Repair the wiring harness.
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Q.
Is the check result normal?
Go to Step 4.
Repair the connector.
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- Check the A/C-ECU input line for open circuit.
Q.
Is the check result normal?
Go to Step 5.
Repair the wiring harness.
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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Measure the resistance between terminal 2 and body earth. OK: Continuity (Less than 2Ω)
Q.
Is the check result normal?
Go to Step 7.
Go to Step 6.
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- Check the power transistor earth line for open circuit.
Q.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope
with Intermittent Malfunction ).
Repair the wiring harness.
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Check that the blower motor works normally.
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Q.
Is the check result normal?
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This diagnosis is complete.
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