DTC P115B:00 [PCM (SKYACTIV-D 2.2)]

id0102j5156700

DTC P115B:00

Lack of remaining fuel (fuel injection pause)

DETECTION CONDITION

•  “Injection amount cumulative value after lowering point E”, which is calculated by the PCM, exceeds the threshold value (larger than P0313:00).

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA/Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

•  Restricts the upper limit value of the APP sensor output.

•  Inhibits the automatic diesel particulate filter regeneration control.

•  Inhibits the manual diesel particulate filter regeneration control.

•  Inhibits engine-stop by i-stop control.

POSSIBLE CAUSE

•  Out of fuel

•  Fuel gauge malfunction (integrated with instrument cluster)

•  Fuel gauge sender unit malfunction

•  PCM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

DTC P115B:00	Lack of remaining fuel (fuel injection pause)
DETECTION CONDITION	• “Injection amount cumulative value after lowering point E”, which is calculated by the PCM, exceeds the threshold value (larger than P0313:00). Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA/Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Restricts the upper limit value of the APP sensor output. • Inhibits the automatic diesel particulate filter regeneration control. • Inhibits the manual diesel particulate filter regeneration control. • Inhibits engine-stop by i-stop control.
POSSIBLE CAUSE	• Out of fuel • Fuel gauge malfunction (integrated with instrument cluster) • Fuel gauge sender unit malfunction • PCM malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)])

•  Switch the ignition OFF.

•  Add 9 L or more of fuel.

•  Start the engine and warm it up.

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Is DTC P115A:00, P0313:00, or P115B:00 displayed?

Note

•  If the added fuel is low, the PCM continues to record DTC P115A:00, P0313:00, or P115B:00.

Yes

Go to the next step.

No

If other DTC or pending code is displayed:

•  Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

If other DTC or pending code is not displayed:

•  Malfunction due to lack of fuel

―  DTC troubleshooting completed.

2

DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL AGAIN

•  Switch the ignition OFF.

•  Add fuel until the fuel level reaches 9 L or more.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)].)

•  Switch the ignition OFF.

•  Add 9 L or more of fuel.

•  Start the engine and warm it up.

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Is DTC P115A:00, P0313:00, or P115B:00 displayed?

Yes

Perform the fuel gauge inspection.

(See INSTRUMENT CLUSTER INSPECTION.)

Repair or replace the malfunctioning location, then go to the next step.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

No

If other DTC or pending code is displayed:

•  Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

If other DTC or pending code is not displayed:

•  Malfunction due to lack of fuel

―  DTC troubleshooting completed.

3

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)].)

•  Switch the ignition OFF.

•  Start the engine and warm it up.

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Has DTC P115B:00 been recorded?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

No

Go to the next step.

4

VERIFY OTHER DTCs

•  Has any other DTC or pending code been stored?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)]) • Switch the ignition OFF. • Add 9 L or more of fuel. • Start the engine and warm it up. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Is DTC P115A:00, P0313:00, or P115B:00 displayed? Note • If the added fuel is low, the PCM continues to record DTC P115A:00, P0313:00, or P115B:00.	Yes	Go to the next step.
1		No	If other DTC or pending code is displayed: • Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].) If other DTC or pending code is not displayed: • Malfunction due to lack of fuel ― DTC troubleshooting completed.
2	DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL AGAIN • Switch the ignition OFF. • Add fuel until the fuel level reaches 9 L or more. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Switch the ignition OFF. • Add 9 L or more of fuel. • Start the engine and warm it up. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Is DTC P115A:00, P0313:00, or P115B:00 displayed?	Yes	Perform the fuel gauge inspection. (See INSTRUMENT CLUSTER INSPECTION.) Repair or replace the malfunctioning location, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
2		No	If other DTC or pending code is displayed: • Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].) If other DTC or pending code is not displayed: • Malfunction due to lack of fuel ― DTC troubleshooting completed.
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Switch the ignition OFF. • Start the engine and warm it up. • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P115B:00 been recorded?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
3		No	Go to the next step.
4	VERIFY OTHER DTCs • Has any other DTC or pending code been stored?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
4		No	DTC troubleshooting completed.