DTC U0298:00 [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)]

id0102i6910500

Details On DTCs

DTC U0298:00

CAN communication: communication error to DC-DC converter (i-ELOOP)

DETECTION CONDITION

•  PCM detects a communication error between the PCM and DC-DC converter (i-ELOOP).

Diagnostic support note

•  This is a continuous monitor (other).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA is not available.

•  Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

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

VEHICLE STATUS WHEN DTCs ARE OUTPUT

•  Flashes i-stop warning light (amber).

•  Illuminates charging system warning light.

•  The charging system warning indication is displayed on the multi-information display. (With multi-information display)

POSSIBLE CAUSE

•  Communication line malfunction between DC-DC converter (i-ELOOP) and PCM

•  DC-DC converter (i-ELOOP) malfunction

•  PCM malfunction

SYSTEM WIRING DIAGRAM

•  Not applicable

DTC U0298:00	CAN communication: communication error to DC-DC converter (i-ELOOP)
DETECTION CONDITION	• PCM detects a communication error between the PCM and DC-DC converter (i-ELOOP). Diagnostic support note • This is a continuous monitor (other). • The check engine light does not illuminate. • FREEZE FRAME DATA is not available. • Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	• Inhibits engine-stop by operating the i-stop function.
VEHICLE STATUS WHEN DTCs ARE OUTPUT	• Flashes i-stop warning light (amber). • Illuminates charging system warning light. • The charging system warning indication is displayed on the multi-information display. (With multi-information display)
POSSIBLE CAUSE	• Communication line malfunction between DC-DC converter (i-ELOOP) and PCM • DC-DC converter (i-ELOOP) malfunction • PCM malfunction
SYSTEM WIRING DIAGRAM	• Not applicable

Repeatability Verification Procedure

1. Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)

2. Start the engine.

Diagnostic Procedure

STEP

INSPECTION

RESULTS

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 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.

No

Go to the next step.

3

INSPECT ACCORDING TO THE DIAGNOSTIC PROCEDURE IN ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]

•  Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM].
(See FOREWORD [L.H.D.].)

(See FOREWORD [R.H.D.].)

—

Go to the next step.

4

VERIFY DTC TROUBLESHOOTING COMPLETED

•  Always reconnect all disconnected connectors.

•  Clear the DTC from the PCM memory using the M-MDS.
(See CLEARING DTC [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)

•  Implement the repeatability verification procedure.
(See Repeatability Verification Procedure.)

•  Perform the DTC Reading Procedure.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)

•  Is the same Pending DTC present?

Yes

Repeat the inspection from Step 1.

No

Go to the next step.

5

VERIFY AFTER REPAIR PROCEDURE

•  Perform the “AFTER REPAIR PROCEDURE”.
(See AFTER REPAIR PROCEDURE [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)

No

DTC troubleshooting completed.

STEP	INSPECTION	RESULTS	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 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	INSPECT ACCORDING TO THE DIAGNOSTIC PROCEDURE IN ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM] • Inspect according to the diagnostic procedure in ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM]. (See FOREWORD [L.H.D.].) (See FOREWORD [R.H.D.].)	—	Go to the next step.
4	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].) • Implement the repeatability verification procedure. (See Repeatability Verification Procedure.) • Perform the DTC Reading Procedure. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].) • Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1.
4		No	Go to the next step.
5	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0)].)
5		No	DTC troubleshooting completed.