DTC U3002:29 [TELEMATICS COMMUNICATION UNIT (TYPE-B)]

id1602a7017500

Outline

System malfunction location

Invalid data received from gateway unit (GWU)

Detection condition

•  The telematics communication unit cannot receive the configuration data (VIN) from gateway unit (GWU) for a continuous 2 times.

Fail-safe

•  Inhibits the emergency call.

Possible cause

•  DTCs are stored in the gateway unit (GWU).

•  Inappropriate telematics communication unit replacement procedure

•  Gateway unit (GWU) configuration data write error

•  Malfunction in CAN bus communication line

•  Telematics communication unit malfunction

•  Gateway unit (GWU) malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Invalid data received from gateway unit (GWU)
Detection condition	• The telematics communication unit cannot receive the configuration data (VIN) from gateway unit (GWU) for a continuous 2 times.
Fail-safe	• Inhibits the emergency call.
Possible cause	• DTCs are stored in the gateway unit (GWU). • Inappropriate telematics communication unit replacement procedure • Gateway unit (GWU) configuration data write error • Malfunction in CAN bus communication line • Telematics communication unit malfunction • Gateway unit (GWU) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

INSPECT GATEWAY UNIT (GWU) FOR MALFUNCTION

•  Perform the DTC inspection for the gateway unit (GWU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is a DTC related to gateway unit (GWU) communication error or internal malfunction displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(Refer to the [DTC TABLE [GATEWAY UNIT (GWU)]] in the workshop manual)

No

Go to the next step.

2

VERIFY TELEMATICS COMMUNICATION UNIT REPLACEMENT RECORD

•  Verify if the telematics communication unit has been replaced before performing this troubleshooting procedure.

•  Has the telematics communication unit been replaced?

Yes

After implementing the required servicing according to procedure when replacing a module, perform the repair completion verification.

(Refer to the [TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION] in the workshop manual)

No

Go to the next step.

3

VERIFY IF MALFUNCTION IS CAUSED BY GATEWAY UNIT (GWU) CONFIGURATION ERROR

•  Switch the ignition OFF and wait for 30 s or more.

•  Switch the ignition ON (engine off or on) and wait for 30 s or more.

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the telematics communication unit.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is the same Pending DTC present?

Yes

Go to the next step.

No

Go to repair completion verification.

4

VERIFY GATEWAY UNIT (GWU) CONFIGURATION RELATED DTCs

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the gateway unit (GWU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is a configuration related DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(Refer to the [DTC TABLE [GATEWAY UNIT (GWU)]] in the workshop manual)

No

Go to the next step.

5

INSPECT CAN COMMUNICATION LINE

•  Perform an inspection in accordance with the multiplex communication system diagnostic procedure.
(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)

•  Is the CAN communication line normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)

6

RESET CONFIGURATION DATA FOR GATEWAY UNIT (GWU)

•  Using the M-MDS, perform the gateway unit (GWU) configuration.
(Refer to the [CONFIGURATION] in the workshop manual)

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the CMDTC self-test.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is a configuration related DTC displayed?

Yes

If a configuration related DTC is displayed on other modules simultaneously

•  Replace the gateway unit (GWU) and perform the repair completion verification.
(Refer to the [GATEWAY UNIT (GWU) REMOVAL/INSTALLATION] in the workshop manual)

If a configuration related DTC is not displayed on other modules simultaneously

•  Replace the telematics communication unit and perform the repair completion verification.
(Refer to the [TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION] in the workshop manual)

No

Go to repair completion verification.

Repair completion verification

VERIFY IF OTHER DTC IS DISPLAYED

•  Perform the DTC inspection.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  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	INSPECT GATEWAY UNIT (GWU) FOR MALFUNCTION • Perform the DTC inspection for the gateway unit (GWU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is a DTC related to gateway unit (GWU) communication error or internal malfunction displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (Refer to the [DTC TABLE [GATEWAY UNIT (GWU)]] in the workshop manual)
1		No	Go to the next step.
2	VERIFY TELEMATICS COMMUNICATION UNIT REPLACEMENT RECORD • Verify if the telematics communication unit has been replaced before performing this troubleshooting procedure. • Has the telematics communication unit been replaced?	Yes	After implementing the required servicing according to procedure when replacing a module, perform the repair completion verification. (Refer to the [TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION] in the workshop manual)
2		No	Go to the next step.
3	VERIFY IF MALFUNCTION IS CAUSED BY GATEWAY UNIT (GWU) CONFIGURATION ERROR • Switch the ignition OFF and wait for 30 s or more. • Switch the ignition ON (engine off or on) and wait for 30 s or more. • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the telematics communication unit. (Refer to the [DTC INSPECTION] in the workshop manual) • Is the same Pending DTC present?	Yes	Go to the next step.
3		No	Go to repair completion verification.
4	VERIFY GATEWAY UNIT (GWU) CONFIGURATION RELATED DTCs • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the gateway unit (GWU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is a configuration related DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (Refer to the [DTC TABLE [GATEWAY UNIT (GWU)]] in the workshop manual)
4		No	Go to the next step.
5	INSPECT CAN COMMUNICATION LINE • Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual) • Is the CAN communication line normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification. (Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)
6	RESET CONFIGURATION DATA FOR GATEWAY UNIT (GWU) • Using the M-MDS, perform the gateway unit (GWU) configuration. (Refer to the [CONFIGURATION] in the workshop manual) • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the CMDTC self-test. (Refer to the [DTC INSPECTION] in the workshop manual) • Is a configuration related DTC displayed?	Yes	If a configuration related DTC is displayed on other modules simultaneously • Replace the gateway unit (GWU) and perform the repair completion verification. (Refer to the [GATEWAY UNIT (GWU) REMOVAL/INSTALLATION] in the workshop manual) If a configuration related DTC is not displayed on other modules simultaneously • Replace the telematics communication unit and perform the repair completion verification. (Refer to the [TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION] in the workshop manual)
6		No	Go to repair completion verification.
Repair completion verification	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (Refer to the [DTC INSPECTION] in the workshop manual) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification		No	DTC troubleshooting completed.