DTC P0088-00: Fuel Rail / System Pressure - Too High [12/2023 - ]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

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

   HINT: 

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

Result: 

A 

GO TO DTC CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ] 

Result: 

B 

See step  2

Pre-procedure1

• Put the engine in Inspection Mode (2WD for measuring Exhaust Gas).

  Powertrain > Hybrid Control > Utility 

  Tester Display
  Inspection Mode

• Start the engine.

• 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

Post-procedure1

• None.

Result: 

NG 

REPLACE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)). Refer to  REMOVAL [12/2023 - ] 

Result: 

OK 

See step  3

HINT: 

Refer to REMOVAL [12/2023 - ]

Result

Result: 

NEXT 

See step  4

Pre-procedure1

• None.

• Clear the DTCs.

  Powertrain > Engine > Clear DTCs 

  Result

  Proceed to
  NEXT

Post-procedure1

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

Result: 

NEXT 

See step  5

Pre-procedure1

• Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

• Read the DTCs.

  Powertrain > Engine > Trouble Codes 

  Result

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

Post-procedure1

• None.

Result: 

A 

REPLACE ECM. Refer to  REMOVAL [12/2023 - ] 

Result: 

B 

END