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If the air conditioner outlet temperature cannot be adjusted, the air mixing damper control
motor or the heater controller assembly (A/C-ECU) may be faulty.
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- Malfunction of the air mix damper control motor
- Malfunction of the heater controller assembly (A/C-ECU)
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Check that the compressor operates under the following conditions.
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- Engine operation
- Air volume control dial: Maximum
- Air conditioner switch: ON
- Temperature control dial: MAX COOL
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Q.
Is the check result normal?
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Refer to INSPECTION PROCEDURE 6: "The A/C compressor does not work .
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Check that the diagnosis code related to the air conditioner is not set.
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Q.
Is the diagnosis code set?
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Carry out the diagnosis code procedures. Refer to .
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NO <Single-zone AUTO A/C> : Go to Step 3.
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NO <Dual-zone AUTO A/C> : Go to Step 5.
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Carry out the actuator test. (Refer to ).
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Item No.17: As air mix damper motor
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Q.
Is the check result normal?
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This diagnosis is complete.
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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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Carry out the actuator test. (Refer to ).
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Item No.16: Dr air mix damper motor
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Q.
Is the check result normal?
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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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Carry out the actuator test. (Refer to ).
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Item No.17: As air mix damper motor
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Q.
Is the check result normal?
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This diagnosis is complete.
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Q.
Is the check result normal?
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Repair the wiring harness.
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Check that A/C outlet air temperature can be adjusted.
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Q.
Is the check result normal?
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This diagnosis is complete.
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Replace the heater controller assembly (A/C-ECU).
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