DTC Troubleshooting: U0047-00 (PGM-FI System, With Multipurpose Camera Unit)

1.

Problem verification:

Problem verification

?1.	Turn the vehicle to the ON mode.

?2.	Clear the DTC with the HDS.

?3.	Turn the vehicle to the OFF (LOCK) mode.

?4.	Turn the vehicle to the ON mode, and wait 6 seconds.

?5.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

The failure is duplicated. Go to step 2.


	NO

Intermittent failure, the system is OK at this time. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?

2.

Shorted unit check (EPS control unit):

Shorted unit check (EPS control unit)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

EPS control unit connector B (6P)

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

Go to step 3.


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original EPS control unit.?

3.

Shorted unit check (steering angle sensor):

Shorted unit check (steering angle sensor)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Steering angle sensor 4P connector

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

Go to step 4.


	NO

Substitute a known-good steering angle sensor, then recheck. If DTC U0047-00 goes away and the steering angle sensor was substituted, replace the original steering angle sensor.?

4.

Shorted unit check (VSA modulator-control unit):

Shorted unit check (VSA modulator-control unit)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

VSA modulator-control unit 38P connector

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

Go to step 5.


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the VSA modulator-control unit.?

5.

Shorted unit check (SRS unit):

Shorted unit check (SRS unit)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

SRS unit connector A (39P)

NOTE: Before disconnecting the SRS unit connector, do the 12 volt battery terminal disconnection procedure, and wait for at least 3 minutes.

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

Go to step 6.


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good SRS unit, then recheck. If DTC U0047-00 goes away and the SRS unit was substituted, replace the original SRS unit.?

6.

Shorted unit check (multipurpose camera unit):

Shorted unit check (multipurpose camera unit)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Multipurpose camera unit 20P connector

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES (without navigation/without display audio)

Go to step 8.


	YES (with navigation/with display audio)

Go to step 7.


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the multipurpose camera unit.?

7.

Shorted unit check (audio-navigation unit or audio unit):

Shorted unit check (audio-navigation unit or audio unit)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Audio-navigation unit connector C (24P) (with navigation)

Audio unit connector C (24P) (with display audio)

?3.	Turn the vehicle to the ON mode.

?4.	Clear the DTC with the HDS.

?5.	Turn the vehicle to the OFF (LOCK) mode.

?6.	Turn the vehicle to the ON mode, and wait 6 seconds.

?7.

Check for DTCs with the HDS.

DTC Description	DTC
U0047-00 CAN Gateway F-CAN ch B Bus Off

Is DTC U0047-00 indicated?


	YES

Go to step 8.


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the audio-navigation unit or the audio unit.?

8.

Shorted wire check (F-CAN B_H line):

Shorted unit check (F-CAN B_H line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

CAN gateway 16P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector B (6P): disconnected
	Steering angle sensor 4P connector: disconnected
	VSA modulator-control unit 38P connector: disconnected
	SRS unit connector A (39P): disconnected
	Multipurpose camera unit 20P connector: disconnected
	Audio-navigation unit connector C (24P) (with navigation): disconnected
	Audio unit connector C (24P) (with display audio): disconnected
	CAN gateway 16P connector: disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 6:
Test point 2	Body ground

Is there continuity?


	YES

Repair a short in the F-CAN B_H wire between the CAN gateway and the connected units.?


	NO

Go to step 9.

9.

Shorted wire check (F-CAN B_L line):

Shorted unit check (F-CAN B_L line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector B (6P): disconnected
	Steering angle sensor 4P connector: disconnected
	VSA modulator-control unit 38P connector: disconnected
	SRS unit connector A (39P): disconnected
	Multipurpose camera unit 20P connector: disconnected
	Audio-navigation unit connector C (24P) (with navigation): disconnected
	Audio unit connector C (24P) (with display audio): disconnected
	CAN gateway 16P connector: disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 14:
Test point 2	Body ground

Is there continuity?


	YES

Repair a short in the F-CAN B_L wire between the CAN gateway and the connected units.?


	NO

Go to step 10.

10.

Shorted wire check (F-CAN B_H line to F-CAN B_L line):

Shorted wire check (F-CAN B_H line to F-CAN B_L line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector B (6P): disconnected
	Steering angle sensor 4P connector: disconnected
	VSA modulator-control unit 38P connector: disconnected
	SRS unit connector A (39P): disconnected
	Multipurpose camera unit 20P connector: disconnected
	Audio-navigation unit connector C (24P) (with navigation): disconnected
	Audio unit connector C (24P) (with display audio): disconnected
	CAN gateway 16P connector: disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 6:
Test point 2	CAN gateway 16P connector (female terminals) No. 14:

Is there continuity?


	YES

Repair a short in the F-CAN B_H wire to the F-CAN B_L wire between CAN gateway terminals No. 6 and No. 14.?


	NO

Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good CAN gateway, then recheck. If DTC U0047-00 goes away and the CAN gateway was substituted, replace the original CAN gateway.?