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ON-BOARD DIAGNOSTIC 07-02–7 07-02 DTC B1274, B1275 id070200800800 Diagnostic Procedure End Of Sie DTC B1274, B1275 Airflow mode actuator (potentiometer) system POSSIBLE CAUSE • Airflow mode actuator malfunction • Open circuit in wiring harness between climate control unit and airflow mode actuator • Short circuit in wiring harness between climate control unit (terminal P) and airflow mode actuator (terminal C) STEP INSPECTION ACTION 1 • Inspect the airflow mode actuator. (See 07-40-11 AIRFLOW MODE ACTUATOR INSPECTION.) • Is it normal? Yes Go to the next step. No Replace the airflow mode actuator. (See 07-40-10 2 • Disconnect the climate control unit connector and the airflow mode actuator connector. • Is there an open circuit in the wiring harness between the following terminals of the climate — P— C — C— A 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 Yes Repair the wiring harness. No The system is normal at present. (Clear the malfunction CLIMATE CONTROL UNIT CONNECTOR AIRFLOW MODE ACTUATOR CONNECTOR A M B C D E F G I L J K N O P Q R S T U V W X A B C D F * H 1871-1U-06B(07-02).fm 7 ページ 2006年3月16日 木曜日 午後4時22分 |