DTC B1251, B1253, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED)[MZ-CD 1.6 (Y6)]
id0702a1805200
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DTC B1251, B1253, B1274, B1275, B1282, B1283 |
Climate control unit (+5 V power supply or sensor ground) system |
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POSSIBLE CAUSE
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• Open circuit in wiring harnesses between climate control unit and each temperature sensor, air mix actuator, or airflow mode actuator
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Diagnostic Procedure
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STEP |
INSPECTION |
ACTION |
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1
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• Disconnect the climate control unit connector and the cabin temperature sensor connector.
• Is there an open circuit in the wiring harness between climate control unit terminal U and cabin temperature sensor terminal B?
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Yes
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Repair the wiring harness.
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No
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The system is normal at present. (Clear the past malfunction from the memory.)
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