Radiator Fan and Condenser Fan Drive Circuit
Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE < 3.8L Engine > .
Refer to INSPECTION PROCEDURE 3: RADIATOR FAN AND CONDENSER FAN DO NOT OPERATE < 3.8L Engine >. .
ENGINE COOLANT LEAK CHECK
| WARNING | When pressure testing the cooling system, slowly release cooling system pressure to avoid getting burned by hot coolant. |
| CAUTION | Be sure to completely clean away any moisture from the places checked. When the tester is taken out, be careful not to spill any coolant. Be careful when installing and removing the tester and when testing not to deform the filler neck of the radiator |
Scheme 67
- Check that the coolant level is up to the filler neck. Install a radiator tester and apply 160 kPa (23 psi) pressure, and then check for leakage from the radiator hose or connections
- If there is leakage, repair or replace the appropriate part
RADIATOR CAP PRESSURE CHECK
Note. Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.
Scheme 68
- Use a cap adapter to attach the cap to the tester
- Increase the pressure until the indicator of the gauge stops moving Minimum limit: 83 kPa (12 psi) Standard value: 93 - 123 kPa (14 - 18 psi)
- Replace the radiator cap if the reading does not remain at or above the limit
FAN CONTROL RELAY CONTINUITY CHECK
| BATTERY VOLTAGE | TERMINAL NO. TO BE CONNECTED TO TESTER | CONTINUITY TEST RESULTS |
|---|---|---|
| Not applied | 4 - 2 | Open circuit |
| Connect terminal No.3 and battery (-) terminal. Connect terminal No.1 and battery (+) terminal. | 4 - 2 | Less than 2 ohms |
ENGINE COOLANT CONCENTRATION TEST
Scheme 69
RADIATOR FAN RELAY CHECK < 2.4L ENGINE >
| BATTERY VOLTAGE | TERMINAL NO. TO BE CONNECTED TO TESTER | CONTINUITY TEST RESULTS |
|---|---|---|
| Not applied | 2 - 4 | Less than 2 ohms |
| 2 - 5 | Open circuit | |
| Connect terminal No.3 and battery (-) terminal. Connect terminal No.1 and battery (+) terminal. | 2 - 5 | Less than 2 ohms |
RADIATOR FAN RELAY CHECK
Scheme 70
Scheme 71
Scheme 72
- Remove the fan control module connector
- Turn the ignition switch to the "ON" position, and measure the voltage between the harness-side connector terminals Standard value: Battery positive voltage
- Connect the fan control module connector, and disconnect the condenser fan motor connector
- Ensure that the A/C switch is off, and start the engine and run it at idle
- Measure the voltage between the fan control module-side connector terminals Standard value: 1 volt or less WARNING: Stay clear of the fan when the fan starts running.
- Turn the A/C switch to the "ON" position
- Measure the voltage between the fan control module-side connector terminals while the fan is running. The voltage should repeat the values 1) and 2) below Standard value: 8.2 +/- 2.6 volts Battery positive voltage +/- 2.6 volts
- If the voltage does not repeatedly change as indicated, replace the radiator fan motor
Scheme 73
- Remove the cooling fan motor connector
- Check to see that the fan motor of the radiator turns when applying battery power between the connector terminals of the radiator fan motor. Also check to see that there is no abnormal sound coming from the cooling fan motor at this time
- If the cooling fan motor is defective, replace it. Refer to «RADIATOR»(ref-308268-S19347884802009020200000) .
Scheme 74
Scheme 75
<< A >> RADIATOR UPPER HOSE/RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.
Scheme 76
<< A >> RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.
Scheme 77
Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.
Scheme 78
<< A >> RADIATOR UPPER HOSE DISCONNECTION
After making mating marks on the radiator hose and hose clamp, disconnect the radiator hose.
Scheme 79
After making mating marks on the radiator hose and hose clamp, disconnect the radiator hose.
Scheme 80
Water Pipe and Hose Check
Check the water pipe and hose for cracks, damage and clogs. Replace them if necessary.
< 2.4L ENGINE >
| ITEM | SPECIFIED SEALANT |
|---|---|
| Cylinder block drain plug | 3M™ AAD Part No.8731 or equivalent |
| Thermostat case | 3M™ AAD Part No.8672, 3M™ AAD Part No.8679/8678 or equivalent |
| Water outlet fitting | |
| Thermostat case bolt | 3M™ AAD Part No. 8730, 8731 or equivalent |
SEALANTS SERVICE SPECIFICATION
< 3.8L ENGINE >
| ITEM | SPECIFIED SEALANT |
|---|---|
| Cylinder block drain plug | 3M™ AAD Part No.8731 or equivalent |
| Engine coolant temperature sensor |
SPECIFIED SEALANT SERVICE SPECIFICATION