Operation CHARM: Car repair manuals for everyone.

05 - Inspection Procedure

Blower Fan and Motor do not Stop Operating.

DIAGNOSIS




STEP 1. Check the harness wires between the blower switch connector C-07, blower resistor connector C-22, and the blower fan motor connector C-21.

Q: Are the harness wires between the blower fan and motor switch connector C-07, blower resistor connector C-22, and the blower fan motor connector C-21 in good condition?

YES: Go to Step 2.

NO: Repair it. Then go to Step 4.







STEP 2. Check the blower relay continuity.

Q: Is there continuity at the blower relay?

YES: Go to Step 3.

NO: Replace. Then go to Step 4.







STEP 3. Check the blower switch continuity.

Q: Is there continuity at the blower switch?

YES: Go to Step 4.

NO: Replace. Then go to Step 4.

STEP 4. Check symptoms.

Q: Does the blower motor stop operating?

YES: This diagnosis is complete. (If no malfunctions are not found in all steps, an intermittent malfunction is suspected. Refer to How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction.)

NO: Go to Step 1.