Inspection Procedure

1. Connect Techstream to the DLC3.
2. Turn the ignition switch to the ON position and turn Techstream ON.
3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
4. Check the operation of the relay while operating it using Techstream.

   OK: Operating noise can be heard from the relay. 

OK: CHECK FOR INTERMITTENT PROBLEMS 

NG: Go to Next Step 

1. Remove the FUEL PUMP relay from the engine room junction block.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITIONS
   
   

   Tester Connection	Specified Condition
   3 - 4	Below 1 Ω
   3 - 5	10 kΩ or higher
   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 Fuel Pump Relay Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reinstall the FUEL PUMP relay.

NG: REPLACE RELAY (FUEL PUMP RELAY) 

OK: Go to Next Step 

1. Remove the FUEL PUMP relay from the engine room junction block.
Fig 2: Identifying Fuel Pump Relay And Engine Room Junction Block
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the E11 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITIONS
   
   

   Tester Connection	Specified Condition
   FUEL PUMP relay terminal 1 - FPR (E11-30)	Below 1 Ω
   FUEL PUMP relay terminal 1 or FPR (E11-30) - Body Ground	10 kΩ or higher

4. Reconnect the ECM connector.
5. Reinstall the FUEL PUMP relay.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL PUMP RELAY - ECM) 

OK: REPLACE ECM  (See REMOVAL )