DTC U0103, U0104, U0122, U0128, U0129, U0131, U0151, U0155, U1207, U129E, U12B4, U1603, U1604, U1605

DTC U0103 : F-CAN Malfunction (PCM-SBW Shifter)

DTC U0104 : F-CAN Malfunction (PCM-Driving Support System Control Unit)

DTC U0122 : F-CAN Malfunction (PCM-VSA Modulator-Control Unit)

DTC U0128 : F-CAN Malfunction (PCM-Electric Parking Brake Control Unit)

DTC U0129 : F-CAN Malfunction (PCM-Electric Servo Brake Control Unit)

DTC U0131 : F-CAN Malfunction (PCM-EPS Control Unit)

DTC U0151 : F-CAN Malfunction (PCM-SRS Unit)

DTC U0155 : F-CAN Malfunction (PCM-Gauge Control Module)

DTC U1207 : F-CAN Malfunction (PCM-A/C Compressor Driver)

DTC U129E : F-CAN Malfunction (PCM-Power Control Unit (PCU))

DTC U12B4 : F-CAN Malfunction (PCM-Park Pawl Actuator Driver Unit)

DTC U1603 : F-CAN Malfunction (PCM-Battery Condition Monitor Module)

DTC U1604 : F-CAN Malfunction (PCM-Motor Control Module)

DTC U1605 : F-CAN Malfunction (PCM-Motor Control Module)

NOTE:

Before you troubleshoot, review the general troubleshooting information .
If the power system indicator flashes, go to the electric powertrain system general troubleshooting information .
According to the detected DTC(s), check for the power circuit and the ground circuit of the control unit which cannot communicate with the PCM.

DTC Description	Confirmed DTC	Pending DTC
U0103 F-CAN Malfunction (PCM- SBW Shifter)
U0104 F-CAN Malfunction (PCM-Driving Support System Control Unit)
U0122 F-CAN Malfunction (PCM-VSA Modulator-Control Unit)
U0128 F-CAN Malfunction (PCM-Electric Parking Brake Control Unit)
U0129 F-CAN Malfunction (PCM-Electric Servo Brake Control Unit)
U0131 F-CAN Malfunction (PCM-EPS Control Unit)
U0151 F-CAN Malfunction (PCM-SRS Unit)
U0155 F-CAN Malfunction (PCM-Gauge Control Module)
U1207 F-CAN Malfunction (PCM-A/C Compressor Driver)
U129E F-CAN Malfunction (PCM-Power Control Unit (PCU))
U12B4 F-CAN Malfunction (PCM-Park Pawl Actuator Driver Unit)
U1603 F-CAN Malfunction (PCM-Battery Condition Monitor Module)
U1604 F-CAN Malfunction (PCM-Motor Control Module)
U1605 F-CAN Malfunction (PCM-Motor Control Module)

DTC (PGM-FI)

CAN gateway system DTC check

-1. Turn the vehicle to the ON mode.

-2. Check for CAN gateway system DTCs with the HDS.

DTC Description	DTC

DTC (CAN GATEWAY)

Are any DTCs indicated?

YES

Go to the troubleshooting for CAN gateway system DTC(s) .

Go to step 2.

F-CAN circuit communication check (Receiving control unit)
-1. Select the Function Test in the CAN gateway with the HDS, then select the F-CAN Bus Connected Unit Check.

F-CAN Bus Connected Unit Check

Which result is indicated?

Bus A is Not Available

Go to step 3.

Bus C is Not Available

Go to step 4.

Bus A and C are Available

Go to step 5.

Open wire check (F-CAN A_H line, F-CAN A_L line)

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

-2. Jump the SCS line with the HDS, and wait more than 1 minute.

-3. Disconnect the following connectors.

CAN gateway 16P connector

PCM connector A (50P)

-4. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	PCM connector A (50P): disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 3:
Test point 2	PCM connector A (50P) No. 39

Test point 1	CAN gateway 16P connector (female terminals) No. 11:
Test point 2	PCM connector A (50P) No. 38

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The F-CAN A_H wire and the F-CAN A_L wire are OK. Check for poor connections or loose terminals at the CAN gateway and the PCM. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

Repair an open in the F-CAN A_H wire or the F-CAN A_L wire between the PCM (A39, A38) and the CAN gateway.

Open wire check (F-CAN C_H line, F-CAN C_L line)

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

-2. Jump the SCS line with the HDS, and wait more than 1 minute.

-3. Disconnect the following connectors.

CAN gateway 16P connector

PCM connector A (50P)

-4. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	PCM connector A (50P): disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 5:
Test point 2	PCM connector A (50P) No. 37

Test point 1	CAN gateway 16P connector (female terminals) No. 13:
Test point 2	PCM connector A (50P) No. 36

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The F-CAN C_H wire and the F-CAN C_L wire are OK. Check for poor connections or loose terminals at the CAN gateway and the PCM. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

Repair an open in the F-CAN C_H wire or the F-CAN C_L wire between the PCM (A37, A36) and the CAN gateway.

F-CAN circuit communication check (Transmitting control unit)

-1. Select the FUNCTION TEST in the CAN gateway with the HDS, then select the F-CAN Bus Connected Unit Check.

F-CAN Bus Connected Unit Check

-2. According to the detected DTC on the following table, make sure that the transmitting control unit detects the CAN gateway Bus channel(s) normally.

DTC	Transmitting control unit	Detected CAN gateway Bus channel(s) at normal
U0103	SBW shifter control module	A
U0104	Millimeter wave radar	B
U0122	VSA modulator-control unit	A, B
U0128	VSA modulator-control unit	A, B
U0129	Electric servo brake control unit	A, B
U0131	EPS control unit	B
U0151	SRS unit	B
U0155	Gauge control module	C
U1207	Electric A/C compressor	A
U129E	Body control module	B
U12B4	Park pawl actuator driver unit	A
U1603	Battery condition monitor module	A
U1604	PCU (motor control module)	A
U1605	PCU (motor control module)	A

Is it detected normally?

Detected normal

Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the transmitting control unit and the CAN gateway.

U0103: SBW shifter control module is Not Available for Bus A

Go to step 6.

U0104: Millimeter wave radar is Not Available for Bus B

Go to step 7.

U0122: VSA modulator-control unit is Not Available for Bus A

Go to step 6.

U0122: VSA modulator-control unit is Not Available for Bus B

Go to step 7.

U0128: VSA modulator-control unit is Not Available for Bus A

Go to step 6.

U0128: VSA modulator-control unit is Not Available for Bus B

Go to step 7.

U0129: Electric servo brake control unit is Not Available for Bus A

Go to step 6.

U0129: Electric servo brake control unit is Not Available for Bus B

Go to step 7.

U0131: EPS control unit is Not Available for Bus B

Go to step 7.

U0151: SRS unit is Not Available for Bus B

Go to step 7.

U0155: Gauge control module is Not Available for Bus C

Go to step 8.

U1207: Electric A/C compressor is Not Available for Bus A

Go to step 6.

U129E: Body control module is Not Available for Bus B

Go to step 7.

U12B4: Park pawl actuator driver unit is Not Available for Bus A

Go to step 6.

U1603: Battery condition monitor module is Not Available for Bus A

Go to step 6.

U1604: Motor control module is Not Available for Bus A

Go to step 6.

U1605: Motor control module is Not Available for Bus A

Go to step 6.

Open wire check (F-CAN A_H line, F-CAN A_L line)

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

-2. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

NOTE:

Before disconnecting the electric servo brake control unit connector, open the driver's door and wait for at least 3 minutes (do not close the door).
Before disconnecting the electric A/C compressor connector, do the 12 volt battery terminal disconnection procedure , and remove the service plug .
Before disconnecting the PCU connector, do the 12 volt battery terminal disconnection procedure .

DTC	Connector
-	CAN gateway 16P connector
U0103	SBW shifter control module 20P connector
U0122	VSA modulator-control unit 46P connector
U0128	VSA modulator-control unit 46P connector
U0129	Electric servo brake control unit 22P connector
U1207	Electric A/C compressor connector A (4P)
U12B4	Park pawl actuator driver unit 26P connector
U1603	Battery condition monitor module connector E (32P)
U1604	PCU 33P connector
U1605	PCU 33P connector

-3. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	Transmitting control unit connector(s) for indicated DTCs: disconnected

DTC	Circuit name	Test point 1 (Receiving control unit)		Test point 2 (Transmitting control unit)
DTC	Circuit name	Connector	Terminal	Connector	Terminal
U0103	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	SBW shifter control module 20P connector	No. 5
U0103	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	SBW shifter control module 20P connector	No. 6
U0122	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	VSA modulator-control unit 46P connector	No. 20
U0122	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	VSA modulator-control unit 46P connector	No. 21
U0128	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	VSA modulator-control unit 46P connector	No. 20
U0128	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	VSA modulator-control unit 46P connector	No. 21
U0129	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	Electric servo brake control unit 22P connector	No. 15
U0129	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	Electric servo brake control unit 22P connector	No. 14
U1207	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	Electric A/C compressor connector A (4P) (female terminals):	No. 4
U1207	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11		No. 3
U12B4	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	Park pawl actuator driver unit 26P connector	No. 8
U12B4	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	Park pawl actuator driver unit 26P connector	No. 7
U1603	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	Battery condition monitor module connector E (32P)	No. 9
U1603	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	Battery condition monitor module connector E (32P)	No. 8
U1604	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	PCU 33P connector	No. 5
U1604	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	PCU 33P connector	No. 6
U1605	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	PCU 33P connector	No. 5
U1605	F-CAN A_L	CAN gateway 16P connector (female terminals):	No. 11	PCU 33P connector	No. 6

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The F-CAN A_H wire and the F-CAN A_L wire are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting.

-2. According to the detected DTC on the following table, substitute or replace the correspond control unit.

DTC	Operation for transmitting control unit
U0103	Check for poor connections or loose terminals at the CAN gateway and the SBW shifter control module. Substitute a known-good SBW shifter assembly .
U0122	Check for poor connections or loose terminals at the CAN gateway and the VSA modulator-control unit. Replace the VSA modulator-control unit .
U0128	Check for poor connections or loose terminals at the CAN gateway and the VSA modulator-control unit. Replace the VSA modulator-control unit .
U0129	Check for poor connections or loose terminals at the CAN gateway and the electric servo brake control unit. Replace the electric servo brake control unit .
U1207	Check for poor connections or loose terminals at the CAN gateway and the electric A/C compressor. Substitute a known-good electric A/C compressor .
U12B4	Check for poor connections or loose terminals at the CAN gateway and the park pawl actuator driver unit. Substitute a known-good park pawl actuator driver unit .
U1603	Check for poor connections or loose terminals at the CAN gateway and the battery condition monitor module. Substitute a known-good battery condition monitor module .
U1604	Check for poor connections or loose terminals at the CAN gateway and the PCU. Substitute a known-good PCU .
U1605	Check for poor connections or loose terminals at the CAN gateway and the PCU. Substitute a known-good PCU .

Repair an open in the F-CAN A_H wire or the F-CAN A_L wire between the transmitting control unit and the CAN gateway.

Open wire check (F-CAN B_H line, F-CAN B_L line)

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

-2. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

NOTE:

Before disconnecting the electric servo brake control unit connector, open the driver's door and wait for at least 3 minutes (do not close the door).
Before disconnecting the SRS unit connector, do the 12 volt battery terminal disconnection procedure , and wait for at least 3 minutes.

DTC	Connector
-	CAN gateway 16P connector
U0104	Millimeter wave radar 8P connector
U0122	VSA modulator-control unit 46P connector
U0128	VSA modulator-control unit 46P connector
U0129	Electric servo brake control unit 22P connector
U0131	EPS control unit connector B (6P)
U0151	SRS unit connector A (39P)
U129E	Body control module connector A (66P)

-3. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	Transmitting control unit connector(s) for indicated DTCs: disconnected

DTC	Circuit name	Test point 1 (Receiving control unit)		Test point 2 (Transmitting control unit)
DTC	Circuit name	Connector	Terminal	Connector	Terminal
U0104	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	Millimeter wave radar 8P connector	No. 7
U0104	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	Millimeter wave radar 8P connector	No. 6
U0122	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	VSA modulator-control unit 46P connector	No. 24
U0122	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	VSA modulator-control unit 46P connector	No. 25
U0128	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	VSA modulator-control unit 46P connector	No. 24
U0128	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	VSA modulator-control unit 46P connector	No. 25
U0129	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	Electric servo brake control unit 22P connector	No. 19
U0129	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	Electric servo brake control unit 22P connector	No. 18
U0131	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	EPS control unit connector B (6P)	No. 3
U0131	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	EPS control unit connector B (6P)	No. 1
U0151	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	SRS unit connector A (39P)	No. 34
U0151	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	SRS unit connector A (39P)	No. 35
U129E	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	Body control module connector A (66P)	No. 64
U129E	F-CAN B_L	CAN gateway 16P connector (female terminals):	No. 14	Body control module connector A (66P)	No. 63

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The F-CAN B_H wire and the F-CAN B_L wire are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting.

According to the detected DTC on the following table, substitute or replace the correspond control unit.

DTC	Operation for transmitting control unit
U0104	Check for poor connections or loose terminals at the CAN gateway and the millimeter wave radar. Substitute a known-good millimeter wave radar .
U0122	Check for poor connections or loose terminals at the CAN gateway and the VSA modulator-control unit. Replace the VSA modulator-control unit .
U0128	Check for poor connections or loose terminals at the CAN gateway and the VSA modulator-control unit. Replace the VSA modulator-control unit .
U0129	Check for poor connections or loose terminals at the CAN gateway and the electric servo brake control unit. Replace the electric servo brake control unit .
U0131	Check for poor connections or loose terminals at the CAN gateway and the EPS control unit. Substitute a known-good EPS control unit .
U0151	Check for poor connections or loose terminals at the CAN gateway and the SRS unit. Substitute a known-good SRS unit .
U129E	Check for poor connections or loose terminals at the CAN gateway and the body control module. Substitute a known-good body control module .

Repair an open in the F-CAN B_H wire or the F-CAN B_L wire between the transmitting control unit and the CAN gateway.

Open wire check (F-CAN C_H line, F-CAN C_L line)

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

-2. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

DTC	Connector
-	CAN gateway 16P connector
U0155	Gauge control module connector A (32P)

-3. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	Transmitting control unit connector(s) for indicated DTCs: disconnected

DTC	Circuit name	Test point 1 (Receiving control unit)		Test point 2 (Transmitting control unit)
DTC	Circuit name	Connector	Terminal	Connector	Terminal
U0155	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	Gauge control module connector A (32P)	No. 20
U0155	F-CAN C_L	CAN gateway 16P connector (female terminals):	No. 13	Gauge control module connector A (32P)	No. 21

Courtesy of HONDA, U.S.A., INC.

Is there continuity?

YES

The F-CAN C_H wire and the F-CAN C_L wire are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting.

According to the detected DTC on the following table, substitute or replace the correspond control unit.

DTC	Operation for transmitting control unit
U0155	Check for poor connections or loose terminals at the CAN gateway and the gauge control module. Substitute a known-good gauge control module .

Repair an open in the F-CAN C_H wire or the F-CAN C_L wire between the transmitting control unit and the CAN gateway.