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U–56 ON-BOARD DIAGNOSTIC * : Shown on the information display according to step. End Of Sie DTC 02 A6E857001038W02 Diagnostic Procedure End Of Sie DTC 06 A6E857001038W03 3 Airflow mode 3 • Blower motor speed — 3rd • Air mix actuator operation — 50% • Air intake actuator operation — FRESH • A/C compressor operation — ON 4 Air intake actuator 4 • Blower motor speed — 3rd • Air mix actuator operation — 0% • Airflow mode actuator operation — VENT A/C compressor Step Operating device Operating conditions Moni tor * Other device conditions DTC 02 Solar radiation sensor system inspection POSSIBLE CAUSE • Solar radiation sensor malfunction • Climate control unit malfunction • Open or short circuit between solar radiation sensor and climate control unit STEP INSPECTION ACTION 1 • Inspect solar radiation sensor. • Is it okay? Yes Go to next step. No Replace solar radiation sensor. 2 • Disconnect climate control unit connector (24-pin) and solar radiation sensor • Is there continuity between following terminals of climate control unit connector Yes Go to next step. No Repair wiring harness. 3 • Is there short circuit to ground between terminal 1S of climate control unit connector Yes Repair wiring harness. No Replace climate control unit. DTC 06 Cabin temperature sensor system inspection POSSIBLE CAUSE • Cabin temperature sensor malfunction • Climate control unit malfunction • Open or short circuit between cabin temperature sensor and climate control unit |