[55A] HEATER, AIR CONDITIONER AND VENTILATION - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 5: Blower Air Amount cannot be Changed. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE 5: Blower Air Amount cannot be Changed.
COMMENTS ON TROUBLE SYMPTOM If the blower air amount can not be changed when the blower switch is operated, the blower switch may be defective.
TROUBLESHOOTING HINTS Malfunction of the resistor Damaged the wiring harness or connectors Malfunction of the blower switch
| DIAGNOSIS
| Step 1. Check that the blower motor operates when the blower switch is moved to the "4 (HI)" position. Turn the ignition switch to the "ON" position. Turn the blower switch to the "4 (HI) " position. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to Inspection procedure 4 "Blower fan and motor does not turn ."
| Step 2. Check the blower switch continuity. Refer to . Q: Is the check result normal? YES: Go to Step 3. NO: Replace the blower switch.
| Step 3. Check the resistor resistance value. Refer to . Q: Is the check result normal? YES: Go to Step 4. NO: Replace the resistor.
| Step 4. Connector check: C-08 blower switch connector and C-11 resistor connector Q: Is the check result normal? YES: Go to Step 5. NO: Repair or replace the connector.
| Step 5. Check the wiring harness between C-08 blower switch connector (terminals 1, 4 and 5) and C-11 resistor connector (terminals 4, 1 and 3). Q: Is the check result normal? YES: Go to Step 6. NO: Repair the wiring harness.
| Step 6. Connector check: C-11 resistor connector and C-12 blower motor connector Q: Is the check result normal? YES: Go to Step 7. NO: Repair or replace the connector.
| Step 7. Check the wiring harness between C-12 blower motor connector (terminal 1) and C-11 resistor connector (terminal 2). Q: Is the check result normal? YES: No action to be taken. NO: Repair the wiring harness.

[55A] HEATER, AIR CONDITIONER AND VENTILATION - - TROUBLESHOOTING - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 5: Blower Air Amount cannot be Changed. | PRINT PAGE / INDEX / PRIOR / NEXT

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