Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch ON and turn the intelligent tester ON.
3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP SP CTL.
4. Check the operation of the relay while operating it using the intelligent tester.

   OK: Operating noise can be heard from the relay. 

OK: CHECK INTERMITTENT PROBLEMS 

NG: Go TO NEXT STEP. 

1. Remove the F/PMP relay from the engine room No. 1 relay block. (See Fig 2)
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
   
   

   Tester Connection	Specified Condition
   3 - 4	Below 1 Ω
   3 - 5	10 kΩ or more
   3 - 4	10 kΩ or more (when battery voltage is applied to terminals 1 and 2)
   3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

   Fig 1: Identifying Relay Test Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FUEL PUMP RELAY (Marking: F/PMP) 

OK: Go TO NEXT STEP. 

1. Remove the F/PMP relay from the engine room No. 1 relay block.
2. Disconnect the B30 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   CONNECTOR TERMINALS RESISTANCE REFERENCE AND CONDITION
   
   

   Tester Connection	Specified Condition
   F/PMP relay terminal 1- B30-59 (FPR)	Below 1 Ω
   F/PMP relay terminal 1 or B30-59 (FPR) - Body ground	10 kΩ or higher

   Fig 2: Identifying B30 ECM Connector Terminals & F/PMP Relay Location

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE ECM