DTC B14A7: Rear Camera Image Input Failure

DTC (MVCS)

NOTE:  If DTC B14AF is stored at the same time as DTC B14A7, troubleshoot DTC B14AF first, then recheck for DTC B14A7.

1. DTC check

   -1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.

   - 4. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   B14A7 Rear Camera Image Input Failure

   Is DTC B14A7 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Open wire check (RR CAM VCC, RR CAM RC GND, RR CAM VID, RR CAM SH lines)

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

   - 2. Disconnect the following connectors.

   Rear view camera 6P connector

   Multi view camera unit connector B (24P)

   - 3. Check for continuity between the rear view camera 6P connector terminal and the multi view camera unit connector B (24P) terminal (see table).

   Test condition	Vehicle OFF (LOCK) mode
   	Rear view camera 6P connector: disconnected
   	Multi view camera unit connector B (24P): disconnected

   Test Circuit	Rear View Camera 6P Connector Terminal:	Multi View Camera Unit Connector B (24P) Terminal
   RR CAM VCC	No. 3	No. 4
   RR CAM RC GND	No. 4	No. 16
   RR CAM VID	No. 1	No. 3
   RR CAM SH	No. 2	No. 15

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

   Is there continuity?

   YES 

   Go to step 3.

   NO 

   Repair an open in the wire between the front camera and the multi view camera unit.

3. Multi view camera unit check

   -1. Reconnect the following connector.

   Multi view camera unit connector B (24P)

   - 2. Turn the vehicle to the ON mode.

   - 3. Measure the voltage between test points 1 and 2 without disconnecting the multi view camera unit connector B (24P).

   Test condition	ON mode
   	Rear view camera 6P connector: disconnected
   Test point 1	Multi view camera unit connector B (24P) No. 4
   Test point 2	Body ground

   Is there 5.7-6.5 V?

   YES 

   Go to step 4.

   NO 

   Replace the multi view camera unit .

4. Shorted wire check (RR CAM VCC line) 1

   -1. Measure the voltage between test points 1 and 2.

   Test condition	ON mode
   	Rear view camera 6P connector: disconnected
   Test point 1	Rear view camera 6P connector No. 3:
   Test point 2	Body ground

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   Is there 5.7-6.5 V?

   YES 

   Go to step 5.

   NO 

   Repair a short in the wires between the rear view camera and the multi view camera unit.

5. Shorted wire check (RR CAM VID line) 1

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

   - 2. Disconnect the following connector.

   Multi view camera unit connector B (24P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Rear view camera 12P connector: disconnected
   	Multi view camera unit connector B (24P): disconnected
   Test point 1	Multi view camera unit connector B (24P) No. 3
   Test point 2	Multi view camera unit connector B (24P) No. 15

   Is there continuity?

   YES 

   Repair a short in the wires between the rear view camera and the multi view camera unit.

   NO 

   Go to step 6.

6. Shorted wire check (RR CAM VID line) 2

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

   Test condition	Vehicle OFF (LOCK) mode
   	Rear view camera 12P connector: disconnected
   	Multi view camera unit connector B (24P): disconnected

   Test circuits	Multi View Camera Unit Connector B (24P) Terminal
   	Test point 1	Test points 2
   RR CAM VID to FR CAM VID, FR CAM VCC, RR CAM VCC, R CAM VID, R CAM VCC, L CAM VID, L CAM VCC, MVC VID	No. 3	No. 1, No. 2, No. 4, No. 5, No. 6, No. 7, No. 8, No. 10

   Is there continuity?

   YES 

   Repair a short in the wires between the appropriate camera and the multi view camera unit.

   NO 

   Go to step 7.

7. Rear view camera check

   -1. Reconnect the following connectors.

   Rear view camera 12P connector

   Multi view camera unit B 24P connector

   - 2. Turn the vehicle to the ON mode.

   - 3. Connect terminals A and B with a jumper wire.

   NOTE:  Check the DTC B14A6 is not stored with the HDS.

   Terminal A	Multi view camera unit B 24P connector No. 1
   Terminal B	Multi view camera unit B 24P connector No. 3

   Does the front camera image appear at the rear camera image on the display?

   YES 

   Replace the rear view camera .

   NO 

   Replace the multi view camera unit .