5-2855. Turn the engine start switch to ON, andthen measure the input voltage betweenthe terminals e and g.6. Turn the engine start switch to OFF.7. Install the main relay, and then install therelay cover and fuse cover.8. Install the intake manifold (STBD). See“Installing the intake manifold” (6-18).Checking the engine ECM circuit1. Remove the engine ECM cover.2. Remove the engine ECM, and then dis-connect the engine ECM couplers a, b,and c.3. Check the wiring harness for continuity.4. Measure the input voltage at the engineECM coupler a.5. Remove the intake manifold (STBD).See “Removing the intake manifold” (6-17).6. Remove the fuse holder 1, and then dis-connect the fuse holder couplers d ande.Main relay input voltage:Terminal e–Terminal g12.0 V (battery voltage)egabcWiring harness continuity:b Terminal 46–Groundc Terminal 68–Groundc Terminal 69–Groundc Terminal 76–GroundEngine ECM input voltage:a Terminal 7–Ground12.0 V (battery voltage)4669 6876bca7Checking the electrical component / Engine control system and component