Cooling Fan System: Inspection

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RELAY (FAN NO. 1, FAN NO. 3)
1. Check the resistance of the relay.
  
  Fig 1: Checking Resistance Of Relay (FAN NO. 1, FAN NO. 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 2: Relay Resistance Chart (FAN NO. 1, FAN NO. 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the relay.
INSPECT RELAY (FAN NO. 2)
1. Check the resistance of the relay.
  
  Fig 3: Checking Resistance Of Relay (FAN NO. 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 4: Relay Resistance Chart (FAN NO. 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the relay.

INSPECT ECT SWITCH (NO. 1)

Check the resistance.

Fig 5: Checking ECT Switch (No. 1) Resistance

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

RESISTANCE CHECK

Temperature	Specified Condition
Above 98° C (208° F)	Below 1 Ω
Below 88°C (190°F)	10 kΩ or higher

If the result is not as specified, replace the switch.

NOTE: When checking the ECT switch in the water, the terminals should be kept dry. After the check, dry the switch.

INSPECT ECT SWITCH (NO. 2)

Check the resistance.

Fig 6: Checking ECT Switch (No. 2) Resistance

Standard:

RESISTANCE CHECK

Temperature	Specified Condition
Above 93°C (199°F)	Below 1 Ω
Below 83°C (181°F)	10 kΩ or higher

If the result is not as specified, replace the switch

NOTE: When checking should be ECT switch in the water, the terminals dry. After the check, dry the switch.