DTC P0230: Fuel Pump Primary Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Select the following menu items: Powertrain / Engine and ECT / Active Test / Active the Fuel Pump Speed Control.
4. Check the operation of the relay while operating it using the tester.

   OK

   Operating noise can be heard from the relay.

NG → See step   2 

OK → See step   4 

1. Remove the FUEL PMP relay from the engine room junction block.
   Fig 1: Identifying Fuel Pump Relay Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Always	Approximately 111 Ω

3. Reinstall the FUEL PMP relay.

NG → REPLACE RELAY (FUEL PMP RELAY) 

OK: Go to next step 

1. Remove the FUEL PMP relay from the engine room relay block.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   FUEL PMP relay terminal 1 - D60-8 (FPR)	Always	Below 1 Ω
   FUEL PMP relay terminal 1 or D60-8 (FPR) - Body Ground	Always	10 kΩ or higher

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL PMP RELAY - ECM) 

OK → See step   4