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Glow Plug Relays

Connect ohmmeter leads to connector terminals E and g (near tab). See Fig 1 and Fig 2 . There should be continuity. Connect leads to terminals B and G. There should be no continuity. Apply battery voltage to terminals E and g. Continuity should now exist between terminals B and G. If continuity is not as specified, replace relay.

Fig 1: Checking No. 1 Glow Plug Relay
G35049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Checking No. 2 Glow Plug Relay
G35048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002