Power Main Relay

1998 Lexus SC 300SECTION Power Main Relay

Remove relay (located behind left side kick panel, in junction block). See Fig 1. Replace relay if it does not operate as follows:

  • No continuity should exist between terminals No. 3 and 5.
  • Apply battery voltage and ground between terminals No. 1 and 2. Continuity should exist between terminals No. 3 and 5.

Fig 1: Identifying Power Main Relay Terminals
G96F07650Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.