DTC U2300:51 [GATEWAY UNIT (GWU) (TYPE-B)]

id0902zc792000

Outline

System malfunction location

Gateway unit (GWU) configuration error

Detection condition

•  The gateway unit (GWU) configuration error (no configuration) detected.

Fail-safe

Not applicable

Possible cause

•  Gateway unit (GWU) configuration error

•  Gateway unit (GWU) malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Gateway unit (GWU) configuration error
Detection condition	• The gateway unit (GWU) configuration error (no configuration) detected.
Fail-safe	Not applicable
Possible cause	• Gateway unit (GWU) configuration error • Gateway unit (GWU) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY GATEWAY UNIT (GWU) REPLACEMENT RECORD

•  Verify if the gateway unit (GWU) has been replaced before performing this troubleshooting procedure.

•  Has the gateway unit (GWU) been replaced?

Yes

After performing the procedure required for the gateway unit (GWU) replacement again, perform the repair completion verification according to the [GATEWAY UNIT (GWU) REMOVAL/INSTALLATION].

(See GATEWAY UNIT (GWU) REMOVAL/INSTALLATION [TYPE-B].)

No

Go to the next step.

2

RESET CONFIGURATION DATA FOR GATEWAY UNIT (GWU)

•  Using the M-MDS, perform the gateway unit (GWU) configuration.
(See CONFIGURATION.)

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

•  Perform the DTC inspection for the gateway unit (GWU).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Perform the gateway unit (GWU) configuration again and perform the repair completion verification.

(See CONFIGURATION.)

No

Go to repair completion verification 2.

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.)

•  Perform the DTC inspection for the gateway unit (GWU).
(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 [TYPE-B (L.H.D.)].)

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [TYPE-B (R.H.D.)].)

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

•  If the malfunction recurs, replace the gateway unit (GWU), then go to the next step.
(See GATEWAY UNIT (GWU) REMOVAL/INSTALLATION [TYPE-B].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs ARE DISPLAYED

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

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY GATEWAY UNIT (GWU) REPLACEMENT RECORD • Verify if the gateway unit (GWU) has been replaced before performing this troubleshooting procedure. • Has the gateway unit (GWU) been replaced?	Yes	After performing the procedure required for the gateway unit (GWU) replacement again, perform the repair completion verification according to the [GATEWAY UNIT (GWU) REMOVAL/INSTALLATION]. (See GATEWAY UNIT (GWU) REMOVAL/INSTALLATION [TYPE-B].)
1		No	Go to the next step.
2	RESET CONFIGURATION DATA FOR GATEWAY UNIT (GWU) • Using the M-MDS, perform the gateway unit (GWU) configuration. (See CONFIGURATION.) • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the gateway unit (GWU). (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Perform the gateway unit (GWU) configuration again and perform the repair completion verification. (See CONFIGURATION.)
2		No	Go to repair completion verification 2.
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.) • Perform the DTC inspection for the gateway unit (GWU). (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 [TYPE-B (L.H.D.)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [TYPE-B (R.H.D.)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the gateway unit (GWU), then go to the next step. (See GATEWAY UNIT (GWU) REMOVAL/INSTALLATION [TYPE-B].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs ARE DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.