DTC P0089:00 [SKYACTIV-D 1.5]

id0102q2008900

DTC P0089:00

High fuel pressure malfunction in common rail fuel pressure control system

DETECTION CONDITION

•  When the following conditions are met, the actual fuel pressure exceeds 217 MPa {2,213 kgf/cm², 31,473 psi} for a continuous 3 s:

MONITORING CONDITIONS

―  Battery voltage: 8 V or more

―  0.5 s have elapsed after the ignition was switched ON (engine off or on)

―  The following DTCs are not detected:

•  Fuel pressure sensor: P0191:00, P0192:00, P0193:00

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 engine torque or the upper limit of the engine speed.

•  PCM restricts engine-transaxle integration control. (ATX)

•  Inhibits engine-stop by operating the i-stop function.

POSSIBLE CAUSE

•  Fuel pressure sensor malfunction

•  Fuel filter clogged

•  Fuel pipe improper routing (improper connection)

•  Suction control valve malfunction

•  Supply pump malfunction

•  Fuel pressure relief valve malfunction

•  PCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC P0089:00	High fuel pressure malfunction in common rail fuel pressure control system
DETECTION CONDITION	• When the following conditions are met, the actual fuel pressure exceeds 217 MPa {2,213 kgf/cm², 31,473 psi} for a continuous 3 s: MONITORING CONDITIONS ― Battery voltage: 8 V or more ― 0.5 s have elapsed after the ignition was switched ON (engine off or on) ― The following DTCs are not detected: • Fuel pressure sensor: P0191:00, P0192:00, P0193:00 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 engine torque or the upper limit of the engine speed. • PCM restricts engine-transaxle integration control. (ATX) • Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE	• Fuel pressure sensor malfunction • Fuel filter clogged • Fuel pipe improper routing (improper connection) • Suction control valve malfunction • Supply pump malfunction • Fuel pressure relief valve malfunction • PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION Note • Recording can be facilitated using the screen capture function of the PC. • Record the FREEZE FRAME DATA/snapshot data on the repair order.	—	Go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	VERIFY DTCs FOR FUEL PRESSURE SENSOR • Switch the ignition off, then ON (engine off). • Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) • Is the PENDING CODE/DTC P0191:00, P0192:00 or P0193:00 also present?	Yes	Go to the applicable DTC inspection. (See DTC P0191:00 [SKYACTIV-D 1.5].) (See DTC P0192:00 [SKYACTIV-D 1.5].) (See DTC P0193:00 [SKYACTIV-D 1.5].)
3		No	Go to the next step.
4	INSPECT FUEL PRESSURE SENSOR • Inspect the fuel pressure sensor. (See FUEL PRESSURE SENSOR INSPECTION [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Replace the common rail, then go to Step 10. (See COMMON RAIL REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
4		No	Go to the next step.
5	INSPECT FUEL FILTER • Inspect the fuel filter for clogging. (See FUEL FILTER INSPECTION [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 10. (See FUEL FILTER REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) (See FUEL FILTER DISASSEMBLY/ASSEMBLY [SKYACTIV-D 1.5].)
5		No	Go to the next step.
6	INSPECT FUEL PIPE • Inspect the fuel pipe installation condition. (See FUEL SYSTEM LOCATION INDEX [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Install the fuel pipe properly, then go to Step 10.
6		No	Go to the next step.
7	INSPECT SUCTION CONTROL VALVE • Inspect the suction control valve. (See SUCTION CONTROL VALVE INSPECTION [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Replace the suction control valve, then go to Step 10. (See SUCTION CONTROL VALVE REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
7		No	Go to the next step.
8	INSPECT SUPPLY PUMP • Inspect the supply pump. (See SUPPLY PUMP INSPECTION [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Replace the supply pump, then go to Step 10. (See SUPPLY PUMP REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
8		No	Go to the next step.
9	INSPECT FUEL PRESSURE RELIEF VALVE • Inspect the fuel pressure relief valve. (See FUEL PRESSURE RELIEF VALVE INSPECTION [SKYACTIV-D 1.5].) • Is there any malfunction?	Yes	Replace the common rail, then go to the next step. (See COMMON RAIL REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
9		No	Go to the next step.
10	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [SKYACTIV-D 1.5].) • Drive the vehicle on a flat road surface 5 times under the following conditions. 1. Idle the engine for 20 s. 2. Shift to 2nd gear and rapidly accelerate the vehicle to 35 km/h {22 mph}and drive the vehicle at a constant speed for 25 s. 3. Stop the vehicle. 4. Switch the ignition to off and wait for 20 s or more. 5. Shift to 3rd gear and rapidly accelerate the vehicle to 50 km/h {32 mph}and drive the vehicle at a constant speed for 50 s. 6. Idle the engine for 20 s. • Perform the DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) • Is the same DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.5].) Go to the next step.
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [SKYACTIV-D 1.5].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-D 1.5].)
11		No	DTC troubleshooting completed.