DTC P0089:00 [PCM (SKYACTIV-D 2.2)]


id0102j5008900

DTC P0089:00

High fuel pressure malfunction in common rail fuel pressure control system

DETECTION CONDITION
•  With the following conditions met, the actual fuel pressure exceeds 217 MPa {2,213 kgf/cm2, 31,473 psi} for a continuous 3 s.
―  Battery positive voltage: 8—16 V
―  0.5 s have elapsed after ignition is switched ON (engine off or on)
―  The following DTCs are not detected
•  Fuel pressure sensor: P01C6:00, P01C5:00, P018D:00, P018C:00, P10CD:00
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Limits the fuel pressure. (High pressure)
•  Limits the engine torque/limits the maximum engine speed.
•  Inhibits the automatic diesel particulate filter regeneration control.
•  Inhibits the manual diesel particulate filter regeneration control.
•  Inhibits engine-stop by i-stop control.
•  Inhibits the EGR control.
POSSIBLE CAUSE
•  Fuel pressure sensor (integrated with fuel injector No.2) connector or terminal malfunction
•  Fuel pressure sensor (integrated with fuel injector No.3) connector or terminal malfunction
•  Fuel filter clogging
•  Erroneous piping (poor connection) of fuel pipe
•  Suction control valve malfunction
•  Supply pump malfunction
•  Fuel pressure relief valve malfunction
•  PCM malfunction
SYSTEM WIRING DIAGRAM
Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the freeze frame data/snap shot data.
Go to the next step.
2
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is the fuel pressure sensor normal?
Yes
Go to the next step.
No
Replace the common rail, then go to Step 8.
3
INSPECT FUEL FILTER
•  Inspect the fuel filter for clogging.
•  Is the fuel filter normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location, then go to Step 8.
4
INSPECT FUEL PIPING
•  Inspect the fuel piping.
•  Is the fuel piping installation normal?
Yes
Go to the next step.
No
Install the fuel piping correctly, then go to Step 8.
5
INSPECT SUCTION CONTROL VALVE
•  Inspect the suction control valve.
•  Is the suction control valve normal?
Yes
Go to the next step.
No
Replace the suction control valve, then go to Step 8.
6
INSPECT SUPPLY PUMP
•  Inspect the supply pump.
•  Is the supply pump normal?
Yes
Go to the next step.
No
Replace the supply pump, then go to Step 8.
7
INSPECT FUEL PRESSURE RELIEF VALVE
•  Inspect the fuel pressure relief valve.
•  Is the fuel pressure relief valve normal?
Yes
Go to the next step.
No
Replace the common rail, then go to the next step.
8
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all disconnected connectors and hoses.
•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
•  Start the engine and warm it up.
•  Stop all electrical loads. (Such as A/C, headlights, blower fan, rear window defroster)
•  Drive the vehicle on flat roads under the following conditions 4 times repeatedly.
Warning
•  Observe legal speed limits when driving the vehicle and perform the procedure in a location where safety can be assured.
1.  Accelerate to 15 km/h and decelerate to 0 km/h.
2.  Wait for 20 s while idling.
3.  Accelerate to 30 km/h, and decelerate to 0 km/h after driving the vehicle while maintaining the speed for 20 s.
4.  Wait for 20 s while idling.
5.  Accelerate to 50 km/h, and decelerate to 0 km/h after driving the vehicle while maintaining the speed for 20 s.
6.  Wait for 20 s while idling.
•  Accelerate to 70 km/h and drive the vehicle while maintaining the speed for 60 s.
•  Decelerate to 50 km/h and drive the vehicle while maintaining the speed for 60 s.
•  Accelerate to 70 km/h and drive the vehicle while maintaining the speed for 60 s.
•  Accelerate to 100 km/h and drive the vehicle while maintaining the speed for 30 s.
•  Accelerate to 120 km/h and decelerate to 0 km/h.
•  Stop the engine.
•  Display the DTCs using the M-MDS.
•  Has DTC P0089:00 been recorded?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY OTHER DTCs
•  Has any other DTC or pending code been stored?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.