2007 Honda Pilot 2WD V6-3.5LFACTORY OEM SERVICE PROCEDURE

Main Relay (Computer/Fuel System): Testing and Inspection

Power Relay Test

Factory service manual diagram



Use this chart to identify the type of reJay, then do the test listed for it.

NOTE: For the turn signal/hazard relay input test, refer to Lighting and Horns.

Normally- open type A

Factory service manual diagram



Check for continuity between the terminals.
- There should be continuity between the No. 1 and No. 2 terminals when battery positive terminal is connected to the No. 4 terminal, and battery negative terminal is connected to the No. 3 terminal.
- There should be no continuity between the No. 1 and No. 2 terminals when power is disconnected.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.