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U–68 TROUBLESHOOTING End Of Sie NO.4 AIR INTAKE MODE DOES NOT CHANGE A6E858001038W06 • When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent Diagnostic procedure 3 INSPECT BLOWER UNIT • Inspect fan in blower unit. — Is fan free of interference from blower unit case? — Is fan free of foreign material and obstructions? • Is fan okay? Yes Go to next step. No Remove obstruction, repair or replace fan and blower unit 4 INSPECT BLOWER UNIT INTAKE VENT • Is blower unit intake vent clogged? Yes Remove obstruction, then go to next step. No Inspect if there are any obstructions in passage between 5 VERIFY THAT MALFUNCTION SYMPTOM • Does air blow out? Yes Troubleshooting completed. No Recheck malfunction symptoms, then repeat from Step 1 if STEP INSPECTION ACTION 4 Air intake mode does not change. DESCRIPTION • Air intake mode does not change when switching REC/FRESH mode. POSSIBLE CAUSE • Malfunction in air intake actuator (Steps 1—6) • Malfunction in air intake door (Step 7) STEP INSPECTION ACTION 1* INSPECT TO SEE WHETHER MALFUNCTION • Turn ignition switch to ON position. • Test voltages at the following terminals of climate control unit. signal) — Terminal 2I (12-pin, RECIRCULATE motor drive signal) U–47 Full-auto Air Conditioner • Are voltages okay? Yes Go to next step. No Go to Step 3. 2* INSPECT TO SEE WHETHER MALFUNCTION • Test voltages at the following terminals of air intake actuator. signal) • Are voltages as shown below? — Terminal D: approximately 0.5 V during RECIRCULATE and approximately 10 V — Terminal F: approximately 10 V during RECIRCULATE and approximately 0.5 V Yes Replace air intake actuator, then go to Step 8. No Repair wiring harness between climate control unit and air |