Fuel Pump Circuit Troubleshooting

  1. Measure the voltage between PGM-FI main relay 2 4P connector terminal No. 2 and body ground.
Is there battery voltage?
YES -
Go to Step 20 .
NO -
Except KN, KQ models: Go to Step 15 .
KN, KQ models:
  • Replace the No. 9 FUEL PUMP (20 A) fuse in the driver's under-dash fuse/relay box.■
  • Replace the driver's under-dash fuse/relay box. ■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the inertia switch 3P connector.