DTC U0100, U0101, U0104, U0111, U0114, U0122, U0128, U0131, U0151, U129C, U12A0 (Gauge Control Module)

DTC U0100  : Gauge control module lost communication with ENG/AT

DTC U0101  : Gauge control module lost communication with AT

DTC U0104  : Gauge Control Module Lost Communication With Driving Support System Control Unit

DTC U0111  : Gauge control module lost communication with Battery Condition Monitor Module

DTC U0114  : Gauge control module lost communication with All Wheel Drive Control Module

DTC U0122  : Gauge control module lost communication with VSA modulator-control unit

DTC U0128  : Gauge control module lost communication with EPB

DTC U0131  : Gauge control module lost communication with EPS Unit

DTC U0151  : Gauge control module lost communication with SRS unit

DTC U129C  : Gauge control module lost communication with multi purpose camera unit

DTC U12A0  : Gauge control module lost communication with Acoustic Vehicle Alert System (AVAS)

NOTE: 

• If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
• Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below.
• The DTC may be stored due to the grounding failure or the power source failure at the transmitting control unit (the grounding inspection and the power source inspection on each control unit are required prior to this checking process).

DTC (Gauge Control Module)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Wait for at least 6 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   U0100 Gauge control module lost communication with ENG/AT
   U0101 Gauge control module lost communication with AT
   U0104 Gauge Control Module Lost Communication With Driving Support System Control Unit
   U0111 Gauge control module lost communication with Battery Condition Monitor Module
   U0114 Gauge control module lost communication with All Wheel Drive Control Module
   U0122 Gauge control module lost communication with VSA modulator-control unit
   U0128 Gauge control module lost communication with EPB
   U0131 Gauge control module lost communication with EPS Unit
   U0151 Gauge control module lost communication with SRS unit
   U129C Gauge control module lost communication with multi purpose camera unit
   U12A0 Gauge control module lost communication with Acoustic Vehicle Alert System (AVAS)

   Are any DTCs indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals.

2. CAN gateway system DTC check

   -1. Check for CAN gateway system DTCs with the HDS.

   DTC Description	DTC
   U0029-00 CAN Gateway F-CAN ch A Bus Off
   U0047-00 CAN Gateway F-CAN ch B Bus Off
   U0056-00 CAN Gateway F-CAN ch C Bus Off
   U0065-00 CAN Gateway F-CAN ch D Bus Off

   DTC Description	DTC
   U0038-00 CAN Gateway F-CAN ch E Bus Off
   U3000-49 CAN Gateway Internal Failure

   Is DTC U0029-00, U0047-00, U0056-00, U0038-00, and/or U3000-49 indicated?

   YES 

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

   NO 

   Go to step 3.

3. F-CAN circuit communication check

   -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

   Does the gauge control module detect the CAN gateway Bus channels D?

   Bus D is Not Available

   Go to step 4.

   Bus D is Available

   Go to step 5.

4. Open wire check (F-CAN D lines)

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

   -2. Disconnect the following connectors.

   CAN gateway 16P connector Gauge control module connector A (32P)

   -3. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode CAN gateway 16P connector: disconnected Gauge control module connector A (32P): disconnected
   Test point 1	CAN gateway 16P connector (female terminals) No. 7:
   Test point 2	Gauge control module connector A (32P) No. 19

   Test point 1	CAN gateway 16P connector (female terminals) No. 15:
   Test point 2	Gauge control module connector A (32P) No. 20

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

   Is there 1.0 Ω or less?

   YES 

   The F-CAN D_H and F-CAN D_L wires are OK. Replace the gauge control module .

   NO 

   Repair an open in F-CAN D_H or F-CAN D_L wire.

5. 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

   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
   U0100	PCM	A, B, E
   U0101	PCM	A, B, E
   U0104	Millimeter wave radar	C
   U0111	Battery condition monitor module	A, E
   U0114	Real time AWD control unit	D
   U0122	VSA modulator-control unit	B, C
   U0128	VSA modulator-control unit	B, C
   U0131	EPS control unit	C
   U0151	SRS unit	C
   U129C	Multipurpose camera unit	C
   U12A0	Acoustic vehicle alerting control unit	B

   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.

   U0100: PCM is Not Available for Bus A

   Go to step 6.

   U0100: PCM is Not Available for Bus B

   Go to step 7.

   U0100: PCM is Not Available for Bus E

   Go to step 10.

   U0101: PCM is Not Available for Bus A

   Go to step 6.

   U0101: PCM is Not Available for Bus B

   Go to step 7.

   U0101: PCM is Not Available for Bus E

   Go to step 10.

   U0104: Millimeter wave radar is Not Available for Bus C

   Go to step 8.

   U0111: Battery condition monitor module is Not Available for Bus A

   Go to step 6.

   U0111: Battery condition monitor module is Not Available for Bus E

   Go to step 10.

   U0114: Real time AWD control unit is Not Available for Bus D

   Go to step 9.

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

   Go to step 7.

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

   Go to step 8.

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

   Go to step 7.

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

   Go to step 8.

   U0131: EPS control unit is Not Available for Bus C

   Go to step 8.

   U0151: SRS unit is Not Available for Bus C

   Go to step 8.

   U129C: Multipurpose camera unit is Not Available for Bus C

   Go to step 8.

   U12A0: Acoustic vehicle alerting control unit is Not Available for Bus B

   Go to step 7.

6. Open wire check (F-CAN A lines)

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

   -2. U0100, U0101: Jump the SCS line with the HDS, and wait more than 1 minute.

   SCS short

   -3. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

   DTC	Connector
   -	CAN gateway 16P connector
   U0100	PCM connector A (50P)
   U0101	PCM connector A (50P)
   U0111	Battery condition monitor module E (32P)

   -4. Measure the resistance 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)
   		Connector	Terminal	Connector	Terminal
   U0100	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	PCM connector A (50P)	No. 37
   	F-CAN A_L		No. 11		No. 36
   U0101	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	PCM connector A (50P)	No. 37
   	F-CAN A_L		No. 11		No. 36
   U0111	F-CAN A_H	CAN gateway 16P connector (female terminals):	No. 3	Battery condition monitor module E (32P)	No. 9
   	F-CAN A_L		No. 11		No. 8

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

   Is there 1.0 Ω or less?

   YES 

   The F-CAN A_H wire and the F-CAN A_L wire are OK.

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

   DTC	Operation for transmitting control unit
   U0100	PCM
   U0101	PCM
   U0111	Battery condition monitor module

   NO 

   Repair an open in F-CAN A_H or F-CAN A_L wire.

7. Open wire check (F-CAN B lines)

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

   -2. U0100, U0101: Jump the SCS line with the HDS, and wait more than 1 minute.

   SCS short

   -3. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

   DTC	Connector
   -	CAN gateway 16P connector
   U0100	PCM connector A (50P)
   U0101	PCM connector A (50P)
   U0122	VSA modulator-control unit 46P connector
   U0128	VSA modulator-control unit 46P connector
   U12A0	Acoustic vehicle alerting control unit 12P connector

   -4. Measure the resistance 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)
   		Connector	Terminal	Connector	Terminal
   U0100	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	PCM connector A (50P)	No. 39
   	F-CAN B_L		No. 14		No. 38
   U0101	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	PCM connector A (50P)	No. 39
   	F-CAN B_L		No. 14		No. 38
   U0122	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	VSA modulator-control unit 46P connector	No. 40
   	F-CAN B_L		No. 14		No. 28
   U0128	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	VSA modulator-control unit 46P connector	No. 40
   	F-CAN B_L		No. 14		No. 28
   U12A0	F-CAN B_H	CAN gateway 16P connector (female terminals):	No. 6	Acoustic vehicle alerting control unit 12P connector	No. 5
   	F-CAN B_L		No. 14		No. 6

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

   Is there 1.0 Ω or less?

   YES 

   The F-CAN B_H wire and the F-CAN B_L wire are OK.

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

   DTC	Operation for transmitting control unit
   U0100	PCM
   U0101	PCM
   U0122	VSA modulator-control unit
   U0128	VSA modulator-control unit
   U12A0	Acoustic vehicle alerting control unit

   NO 

   Repair an open in F-CAN B_H or F-CAN B_L wire.

8. Open wire check (F-CAN C lines)

   -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
   U0104	Millimeter wave radar 8P connector
   U0122	VSA modulator-control unit 46P connector
   U0128	VSA modulator-control unit 46P connector
   U0131	EPS control unit connector B (6P)

   DTC	Connector
   U0151	SRS unit connector A (39P)
   U129C	Multipurpose camera unit 12P connector

   -3. Measure the resistance 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)
   		Connector	Terminal	Connector	Terminal
   U0104	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	Millimeter wave radar 8P connector	No. 7
   	F-CAN C_L		No. 13		No. 6
   U0122	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	VSA modulator-control unit 46P connector	No. 46
   	F-CAN C_L		No. 13		No. 34
   U0128	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	VSA modulator-control unit 46P connector	No. 46
   	F-CAN C_L		No. 13		No. 34
   U0131	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	EPS control unit connector B (6P)	No. 1
   	F-CAN C_L		No. 13		No. 3
   U0151	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	SRS unit connector A (39P)	No. 34
   	F-CAN C_L		No. 13		No. 35
   U129C	F-CAN C_H	CAN gateway 16P connector (female terminals):	No. 5	Multipurpose camera unit 12P connector	No. 11
   	F-CAN C_L		No. 13		No. 5

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

   Is there 1.0 Ω or less?

   YES 

   The F-CAN C_H wire and the F-CAN C_L wire are OK.

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

   DTC	Operation for transmitting control unit
   U0104	Millimeter wave radar
   U0122	VSA modulator-control unit
   U0128	VSA modulator-control unit
   U0131	EPS control unit
   U0151	SRS unit
   U129C	Multipurpose camera unit

   NO 

   Repair an open in F-CAN C_H or F-CAN C_L wire.

9. Open wire check (F-CAN D lines)

   -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
   U0114	Real time AWD control unit 24P connector

   -3. Measure the resistance 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)
   		Connector	Terminal	Connector	Terminal
   U0114	F-CAN D_H	CAN gateway 16P connector (female terminals):	No. 7	Real time AWD control unit 24P connector	No. 14
   	F-CAN D_L		No. 15		No. 24

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

   Is there 1.0 Ω or less?

   YES 

   The F-CAN D_H wire and the F-CAN D_L wire are OK.

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

   DTC	Operation for transmitting control unit
   U0114	Real time AWD control unit

   NO 

   Repair an open in F-CAN D_H or F-CAN D_L wire.

10. Open wire check (EP-CAN A lines)

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

    -2. U0100, U0101: Jump the SCS line with the HDS, and wait more than 1 minute.

    SCS short

    -3. According to the detected DTC on the following table, disconnect the transmitting control unit connector(s).

    DTC	Connector
    -	CAN gateway 16P connector
    U0100	PCM connector A (50P)
    U0101	PCM connector A (50P)
    U0111	Battery condition monitor module E (32P)

    -4. Measure the resistance 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)
    		Connector	Terminal	Connector	Terminal
    U0100	EP-CAN A_H	CAN gateway 16P connector (female terminals):	No. 16	PCM connector A (50P)	No. 21
    	EP-CAN A_L		No. 8		No. 20
    U0101	EP-CAN A_H	CAN gateway 16P connector (female terminals):	No. 16	PCM connector A (50P)	No. 21
    	EP-CAN A_L		No. 8		No. 20
    U0111	EP-CAN A_H	CAN gateway 16P connector (female terminals):	No. 16	Battery condition monitor module E (32P)	No. 11
    	EP-CAN A_L		No. 8		No. 10

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

    Is there 1.0 Ω or less?

    YES 

    The EP-CAN A_H wire and the EP-CAN A_L wire are OK.

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

    DTC	Operation for transmitting control unit
    U0100	PCM
    U0101	PCM
    U0111	Battery condition monitor module

    NO 

    Repair an open in EP-CAN A_H or EP-CAN A_L wire.