Section 249 (HVAC - General Servicing): Relay: Inspection

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Remove relay
1. Remove the heater relay. See Fig 1.
2. Remove the rear heater relay.
3. Remove the condenser fan relay.
4. Remove the magnetic clutch relay.
Fig 1: Locating Heater, Rear Heater, Condenser Fan, & Magnetic Clutch Relays
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect relays
1. Inspect heater and rear heater relay continuity. See Fig 2 and Fig 3 .
  
  Fig 2: Heater & Rear Heater Relay Specification Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If continuity is not as specified, replace the relay.
  
  Fig 3: Testing Heater & Rear Heater Relay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect magnetic clutch and condenser fan for relay continuity. See Fig 4 and Fig 5 .
Fig 4: Magnetic Clutch & Condenser Fan Relay Specification Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If continuity is not as specified, replace the relay.

Fig 5: Testing Magnetic Clutch & Condenser Fan Relay
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002