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HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–129 Chart C: Fan Does Not Rotate In Any Mode Other Than MAX HI Chart D: Fan Does Not Stop Step Action Value(s) Yes No 1 Is the power transistor performance normal? (Refer to — Go to Step 2 Replace the power transistor 2 Is there continuity between the harness side — Go to Step 4 Go to Step 3 3 Repair an open circuit between terminal. — Go to Step 2 — 4 Is there continuity between the harness side — Go to Step 6 Go to Step 5 5 Repair an open circuit between terminal No.B35–3 — Go to Step 4 — 6 Is there continuity between the harness side — Go to Step 8 Go to Step 7 7 Repair an open circuit between terminal No.B35–2 — Go to Step 6 — 8 Replace the auto air conditioner control unit. — Verify repair — Step Action Value(s) Yes No 1 1. Disconnect the max high relay, the power transistor connector B–35 and the auto A/C 2. Turn on the ignition switch. Does the blower motor stop? — Go to Step 3 Go to Step 2 2 Repair a short circuit between connector No.B5–1 and — Verify repair — 3 Is the max high relay normal? (Refer to the later — Go to Step 4 Replace the relay 4 Reinstall the max high relay. — Go to Step 6 Go to Step 5 5 Repair a short circuit between connector No.B25–3 — Go to Step 4 — 6 Is the power transistor normal? (Refer to the later — Go to Step 7 Replace the power transistor 7 Reinstall the power transistor. — Replace the auto A/C control unit — |