Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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AC(diag)-33 Diagnostic Procedure for Sensors HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) C: EVAPORATOR SENSOR WIRING DIAGRAM: Air conditioning system, auto A/C model <Ref. to WI-77, AUTO A/C MODEL, WIRING DIAGRAM, Air Con- Step Check Yes No 1 CHECK EVAPORATOR SENSOR. Is the evaporator sensor nor- Replace the evap- 2 CHECK INPUT SIGNAL FOR EVAPORATOR Connector & terminal (B88) No. 2 (+) — No. 1 (–): Is the voltage approx. 5 V? 3 CHECK AUTO A/C CONTROL MODULE Connector & terminal (i88) No. 18 (+) — (i88) No. 14 (–): Is the voltage approx. 5 V? 4 CHECK HARNESS CONNECTOR BETWEEN Connector & terminal (B88) No. 2 — (i88) No. 18: Is the resistance less than 1 Ω? Go to step Repair the open i1 5 6 7 8 2 1 9 4 3 10 24 22 23 25 27 26 28 11 12 13 14 15 16 17 18 19 20 21 9 10 1 2 i1 B36 i88 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 B88 2 1 B88 14 1 8 i88 AC-02431 AUTO A/C CONTROL MODULE EVAPORATOR SENSOR |