Multiplex Integrated Control System Troubleshooting - Test Mode A (4D)

Multiplex Integrated Control System Troubleshooting - Test Mode A

NOTE:

Perform this diagnosis first if the symptom is related to the B-CAN system.
Because several different Tester's can be used to troubleshoot, there might be differences in what is shown on the screen and what is shown in the DTC troubleshooting flow charts in the Service Manual.
Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this section.

Make sure the system is related to B-CAN.

Is the symptom related to the B-CAN system?

YES - Go to 2.

NO - Go to the system troubleshooting for the system with the symptom.n

2.	Connect the Honda PGM Tester or the Honda Diagnostic System (HDS).

From BODY ELECTRICAL SYSTEM SELECT, select the UNIT INFORMATION MENU, and then select CONNECTED UNIT.

NOTE:

If the unit is communicating with the Honda PGM Tester or the HDS, DETECT will be displayed.
If the unit is not communicating, N/A will be displayed.

Are all control units communicating with the scan tool?

YES - Go to 4.

NO - If any of them are not communicating, go to B-CAN System Dignosis Test B. If all units are not communicating, go to DTC B1000 troubleshooting.n

4.	Select the system that has the system from the BODY ELECTRICAL SYSTEM SELECT of the menu, and enter the CONNECTED UNIT.

Select the TEST MODE MENU, and check all of the DTCs related to the connected units.

Are any DTCs indicated?

YES - Go to 6.

NO - If the problem is related to the following, go to B-CAN system diagnosis test mode C.

NOTE: In the problem is related to the following, go to the troubleshooting for the individual system.

6.	Record all DTCs and sort them by DTC type using the DTC troubleshooting.

7.	Troubleshoot the DTC (s) in the following order: Internal error DTCs. Loss of communicator DTCs. Begin troubleshooting with the lowest number first (Example: if DTC B1006 and B1058 are retrieved, begin by troubleshooting B1006).