DTC P0088-00: Fuel Rail / System Pressure - Too High [10/2022 - 11/2023]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P0088-00 is output	A
   DTC P0088-00 and other DTCs are output	B

   HINT: 

   If any DTCs other than P0088-00 are output, troubleshoot those DTCs first.

Result: 

B 

GO TO DTC CHART  . Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023]

Result: 

A 

See step  2

1. Put the engine in Inspection Mode (Maintenance Mode).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Inspection Mode

2. Start the engine.
3. According to the display on the GTS, read the Data List while racing the engine.

   Powertrain > Engine > Data List 

   Tester Display
   Fuel Pressure (High)

   OK

   Fuel pressure fluctuates.

   Result

   Proceed to
   OK
   NG

   HINT: 

   Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

   Refer to INITIALIZATION [10/2021 - ]

Result: 

NG 

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) 

Refer to REMOVAL [10/2022 - 11/2023]

Result: 

OK 

See step  3

Refer to REMOVAL [10/2022 - 11/2023]

HINT: 

Perform "Inspection After Repair" after replacing the fuel pump assembly (for high pressure side).

Refer to INITIALIZATION [10/2021 - ]

Result

Result: 

NEXT 

See step  4

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P0088-00 is output	B

Result: 

A 

END 

Result: 

B 

REPLACE ECM 

Refer to REMOVAL [10/2022 - 11/2023]