DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED)

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DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED)

B3E070201038W05

DTC B1260, B1261, B1282, B1283, B1274, B1275 | Climate control unit (+5 V power supply) system
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POSSIBLE CAUSE | • Open or short circuit in wiring harnesses between climate control unit and solar radiation sensor, air mix actuator, or airflow mode actuator

Diagnostic Procedure

STEP | INSPECTION | ACTION
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1 | • Disconnect the climate control unit connector and the airflow mode actuator connector. • Is there an open circuit in the wiring harness between climate control unit terminal P and airflow mode actuator terminal B? | Yes | Repair the wiring harness.
No | Go to the next step.
2 | • Is there a short circuit to ground in the wiring harness between climate control unit terminal P and airflow mode actuator terminal B? | Yes | Repair the wiring harness.
No | Go to the next step.
3 | • Is there a short circuit to ground in the wiring harness between climate control unit terminal P and air mix actuator terminal A? | Yes | Repair the wiring harness.
No | Go to the next step.
4 | • Is there a short circuit to ground in the wiring harness between climate control unit terminal P and solar radiation sensor terminal A? | Yes | Repair the wiring harness.
No | The system is normal at present. (Clear the past malfunction from the memory.)