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

id0102t5156700

Outline

System malfunction location

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).

Fail-safe

•  PCM restricts engine torque./Limits the maximum engine speed.

•  Inhibits the DENOx/DESOx control.

•  Inhibits the diesel particulate filter regeneration control.

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

Possible cause

•  Out of fuel

•  Fuel gauge malfunction (integrated with instrument cluster)

•  Fuel gauge sender unit malfunction

•  PCM malfunction

System wiring diagram

•  Not applicable

Connector diagram

•  Not applicable

System malfunction location	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).
Fail-safe	• PCM restricts engine torque./Limits the maximum engine speed. • Inhibits the DENOx/DESOx control. • Inhibits the diesel particulate filter regeneration control. • Inhibits engine-stop by operating the i-stop function.
Possible cause	• Out of fuel • Fuel gauge malfunction (integrated with instrument cluster) • Fuel gauge sender unit malfunction • PCM malfunction
System wiring diagram	• Not applicable
Connector diagram	• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY

•  Verify related Service Bulletins, on-line repair information, or Service Information availability.

•  Is any related Information available?

Yes

Perform repair or diagnosis according to the available information.

•  If the vehicle is not repaired, go to the next step.

No

Go to the next step.

2

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

•  Record the freeze frame data/snapshot data.

Note

•  Recording can be facilitated using the screen capture function of the PC.

—

Go to the next step.

3

DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC)

•  Switch the ignition OFF.

•  Add 9 L {9.5 US qt, 8 Imp qt} or more of fuel.

•  Start the engine and warm it up.

•  Display the DTCs using the M-MDS.
(See DTC INSPECTION.)

•  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)].)

If other DTC or pending code is not displayed:

•  Malfunction due to lack of fuel

―  DTC troubleshooting completed.

4

DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL AGAIN

•  Switch the ignition OFF.

•  Add fuel until the fuel level reaches 9 L {9.5 US qt, 8 Imp qt} or more.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC.)

•  Switch the ignition OFF.

•  Add 9 L {9.5 US qt, 8 Imp qt} or more of fuel.

•  Start the engine and warm it up.

•  Display the DTCs using the M-MDS.
(See DTC INSPECTION.)

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

Yes

Perform the fuel gauge inspection.

(See INSTRUMENT CLUSTER INSPECTION [(E)].)

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)].)

If other DTC or pending code is not displayed:

•  Malfunction due to lack of fuel

―  DTC troubleshooting completed.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.

―  Switch the ignition OFF.

―  Start the engine and warm it up.

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY • Verify related Service Bulletins, on-line repair information, or Service Information availability. • Is any related Information available?	Yes	Perform repair or diagnosis according to the available information. • If the vehicle is not repaired, go to the next step.
1		No	Go to the next step.
2	RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION • Record the freeze frame data/snapshot data. Note • Recording can be facilitated using the screen capture function of the PC.	—	Go to the next step.
3	DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC) • Switch the ignition OFF. • Add 9 L {9.5 US qt, 8 Imp qt} or more of fuel. • Start the engine and warm it up. • Display the DTCs using the M-MDS. (See DTC INSPECTION.) • 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.
3		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)].) If other DTC or pending code is not displayed: • Malfunction due to lack of fuel ― DTC troubleshooting completed.
4	DETERMINE IF MALFUNCTION IS DUE TO OUT OF FUEL AGAIN • Switch the ignition OFF. • Add fuel until the fuel level reaches 9 L {9.5 US qt, 8 Imp qt} or more. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC.) • Switch the ignition OFF. • Add 9 L {9.5 US qt, 8 Imp qt} or more of fuel. • Start the engine and warm it up. • Display the DTCs using the M-MDS. (See DTC INSPECTION.) • Is DTC P115A:00, P0313:00, or P115B:00 displayed?	Yes	Perform the fuel gauge inspection. (See INSTRUMENT CLUSTER INSPECTION [(E)].) Repair or replace the malfunctioning location, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
4		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)].) If other DTC or pending code is not displayed: • Malfunction due to lack of fuel ― DTC troubleshooting completed.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Replicate the vehicle conditions at the time the DTC was detected using the following procedure. ― Switch the ignition OFF. ― Start the engine and warm it up. • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.