DTC P0088: Fuel Rail / System Pressure - Too High: Procedure

1. Connect Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the tester on.
3. Clear DTCs.
4. Start the engine.
5. Enter the following menus: Powertrain / Engine / Trouble Codes.
6. Read the DTCs using Techstream.

   Result

   Display (DTC output)	Proceed to
   P0088	A
   P0088 and other DTCs	B

   HINT: 

   If any codes other than P0088 are output, perform troubleshooting for those DTCs first.

B → GO TO DTC CHART 

A: Go to next step 

1. Connect Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the tester on.
3. Start the engine.
4. Turn the tester on.
5. Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure / Fuel Press.
6. Check that the fuel pressure fluctuates when the target fuel pressure changes.

   HINT: 

   The Control the Target Fuel Pressure operation lowers the target fuel pressure by 12.5% or increase the target fuel pressure 24.8%.

   OK

   Fuel pressure fluctuates.

NG → REPLACE FUEL PRESSURE SENSOR 

OK: Go to next step 

NEXT: Go to next step 

1. Connect Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the tester on.
3. Clear DTCs.
4. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
5. Enter the following menus: Powertrain / Engine / Trouble Codes.
6. Read the DTCs using Techstream.

   Result

   Display (DTC output)	Proceed to
   P0088	A
   No output	B

B → END 

A → See step   5