STEP 5. Connector check: C-115 blower motor connector
Q.
Is the check result normal?
Go to Step 6.
Repair the connector.
STEP 6. Check the blower motor.
Refer to .
Q.
Is the check result normal?
Go to Step 7.
Replace the blower motor.
STEP 7. Voltage measurement at C-115 blower motor connector.
(1)Disconnect the connector, and measure at the wiring harness side.
(2)Turn the ignition switch to the ON position.
(3)Voltage between terminal 1 and body earth. <LHD> OK: System voltage
(4)Voltage between terminal 2 and body earth. <RHD> OK: System voltage
Q.
Is the check result normal?
Go to Step 8.
INSPECTION PROCEDURE 14: Refer to "Blower motor power supply system" .
STEP 8. Connector check: C-121 power transistor connector
Q.
Is the check result normal?
Go to Step 9.
Repair the connector.
STEP 9. Resistance measurement at the C-121 power transistor connector.
(1)Disconnect the connector, and measure at the wiring harness side.
(2)Continuity between terminal 1 and body earth OK: Continuity exists (2 Ω or less)
Q.
Is the check result normal?
Go to Step 10.
Repair the wiring harness wires between power transistor connector terminal No.
1 and body earth.
STEP 10. Check the wiring harness between C-115 blower motor connector
terminal No.2 <LHD> or 1 <RHD> and C-121 power transistor connector terminal No.2.
Check the power transistor power supply line for open circuit.
Q.
Is the check result normal?
Go to Step 11.
Repair the wiring harness.
STEP 11. Connector check: C-111 A/C-ECU connector
Q.
Is the check result normal?
Go to Step 12.
Repair the connector.
STEP 12. Check the wiring harness between C-115 blower motor connector
terminal No.2 <LHD> or 1 <RHD> and C-111 A/C-ECU connector terminal No.1.
Check the blower motor power supply line for open circuit.
Q.
Is the check result normal?
Go to Step 13.
Repair the wiring harness.
STEP 13. Check the wiring harness between C-121 power transistor connector
terminal No.4 and C-111 A/C-ECU connector terminal No.2.
Check the power transistor power supply line for open circuit.
Q.
Is the check result normal?
Go to Step 14.
Repair the wiring harness.
STEP 14. Replace the power transistor and recheck the trouble symptom