Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
Fuel Pressure: Testing and Inspection
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION AND FUEL LEAKS
a. Connect a intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Data
Link Connector 3 (DLC3).
b. Turn the ignition switch ON, and push the intelligent tester main switch ON.
NOTE: Do not start the engine.
c. Enter the following menus: DIAGNOSIS/ENHANCED OBD II/ACTIVE TEST/FUEL PUMP/SPD
d. Please refer to the intelligent tester operator's manual for further details.
e. Check that the pulsation damper screw rises when the fuel pump operates. If operation is not as specified, check the fusible link, fuses, EFI
main relay, fuel pump, ECM and wiring connections.
f.
Turn the ignition switch off.
g. Disconnect the intelligent tester and CAN VIM from the DLC3.
2. CHECK FUEL SYSTEM PRESSURE
a. Check the battery positive voltage is 12 V or more.
b. Disconnect the negative (-) terminal cable from the battery.
c. Remove the front fuel pipe from the LH delivery pipe.