Circuit Opening Relay: Inspection

WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE RELAY BOX COVER
INSPECT CIRCUIT OPENING RELAY

Fig 2: Inspecting Circuit Opening Relay
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Inspect the relay continuity.
  1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
    If there is no continuity, replace the relay.
  2. Check that there is no continuity between terminals 3 and 5.
  If there is continuity, replace the relay.
2. Inspect the relay operation.
  
  Fig 3: Inspecting Relay Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Apply battery positive voltage across terminals 1 and 2.
  2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
If there is no continuity, replace the relay.
REINSTALL CIRCUIT OPENING RELAY
REINSTALL RELAY BOX COVER