DTC B1251, B1253, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED)

id070200805300

DTC B1251, B1253, B1947, B2014, B1282, B1283, B1274, B1275

Climate control unit (+5 V power supply or sensor ground) system

POSSIBLE CAUSE

• Open circuit in wiring harnesses between climate control unit and each temperature sensor, air mix actuator, or airflow mode actuator

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
• Disconnect the climate control unit connector and the evaporator temperature sensor connector.
• Is there an open circuit in the wiring harness between climate control unit terminal U and evaporator temperature sensor terminal A?
Yes
Repair the wiring harness.
No
The system is normal at present. (Clear the past malfunction from the memory.)