INSPECTION
PROCEDURE 2: Cool air does not come
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If the blower air temperature can not be cool when turning A/C switch ON and
lowering the preset temperature, inadequate refrigerant quantity, sensors, harness or connectors
may be suspected.
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Damaged wiring harness or connectors
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STEP 1. Check the blower operation
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Check that air blows through the air outlets.
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(1)Turn the ignition switch to the ON position.
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(2)Blower knob: Other than OFF
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(3)Check that the air comes out of the blower.
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Q.
Is the check result normal?
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Go to Step 2.
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Refer to Inspection Procedure 3 "The blower does not work ".
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STEP 2. Check the A/C compressor operation
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Check that the compressor operates under the following conditions.
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- Engine operation
- Air conditioner switch: ON
- Blower knob: Maximum air volume
- Temperature control dial: 18°C (MAX COOL)
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The compressor does not work when the blower intake temperature is 0°C or less.
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Q.
Is the check result normal?
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Go to Step 3.
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Refer to Inspection Procedure 6 "The A/C compressor does not work ",
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STEP 3. M.U.T.-III CAN bus diagnostics
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Use the M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Go to Step 4.
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Repair the CAN bus lines. (Refer to GROUP 54C -
Troubleshooting ).
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STEP 4. M.U.T.-III diagnosis code
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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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Go to Step 5.
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STEP 5. Refrigerant level check
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Check that the refrigerant level is adequate. Refer to .
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
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Charge or remove the refrigerant level. Refer to .
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