Inspection Procedure

HINT:

Read freeze frame data using hand-held tester. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.

1. Check fuel pump relay (See  FUEL PUMP RELAY  ). 

   NG: Replace fuel pump relay. 

   OK: Go to next step. 

2. Check fuel pump resister (See  INSPECTION  ). 

   NG: Replace fuel pump resister (See  FUEL PUMP RESISTOR  ). 

   OK: Go to next step. 

3. Check for open and short in harness and connector between terminal FPR ECM and fuel pump relay (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 

   NG: Repair or replace harness or connector. 

   OK: Replace ECM (See  ENGINE CONTROL MODULE (ECM)  ).