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[psoff]

Does anyone know the procedure to read the DTC codes on a 2017 Street Glide CVO?

[grc]

This DIY tip explains the Odometer Self Diagnostics Readout on 2014 and newer Harley Davidson Touring motorcycles.

Diagnostic Mode
1. To enter diagnostic mode, press and hold the trip odometer reset switch located on the left handlebar controls, while turning the IGN ON.

NOTE
The trip odometer reset switch is located in the left hand control module. The switch signal is sent to the speedometer over the CAN bus. Therefore, if there is a problem with the CAN bus, the odometer self-diagnostic mode may not function.

2. Release the trip odometer reset switch. "diag" will appear on odometer display.
3. Press and release trip odometer reset switch. ECM will appear on odometer display. It will have either a "Y" or an "N" after it, depending if there are any ECM codes or not.
4. Quickly press and release trip odometer reset switch to cycle through the modules. Modules include the BCM, SPDO, ABS and RAD.
5. Once the desired module is displayed, press and hold trip odometer reset switch.
6. If any DTCs are stored in the module, the odometer will display the DTC. Quickly pressing and releasing trip odometer reset switch will cycle through stored DTCs.
7. When all DTCs have been cycled the odometer will display "end".
8. To clear all DTCs in that module press and hold trip odometer reset switch, while a DTC is displayed. If DTCs are not to be cleared, quickly press and release trip odometer reset switch. The part number of the module will be displayed.
9. Press and release trip odometer reset switch again to continue to next module.
10. Make note of all DTCs. Clear all DTCs and operate vehicle to verify DTCs set and are current. Historic DTCs are not to be diagnosed unless the condition is reoccurring and intermittent.
11. Turn IGN OFF to exit diagnostic mode. If IGN is not turned off, vehicle will exit diagnostics mode when vehicle starts moving.

There are two types of DTCs: current and historic. If a DTC is stored, it can be read using a computer-based diagnostic package called DIGITAL TECHNICIAN II (Part No. HD-48650) or odometer self-diagnostics.

NOTES
• Odometer self-diagnostics will display both current and historic DTCs. To differentiate between current and historic DTCs, use a computer-based diagnostic package called DIGITAL TECHNICIAN II (Part No. HD-48650).
• Current DTCs reside in the memory of the ECM, BCM, instruments, radio or ABS module (if equipped) until the DTC is resolved.
• DTCs are designated by a P, C, B or U depending on the type of code and what module sets them. The ECM sets "P" codes to indicate issues monitored by the ECM. The ABS module sets "C" codes indicating an issue with ABS on the vehicle. Instruments, radio or BCM can all set "B" codes. All modules set "U" codes when there is an issue causing the modules not to communicate properly.
• A historic DTC can be cleared by use of odometer self diagnostics or after a total of 20 error free ignition cycles
(start and run cycle) have elapsed.

Jerry

[grc]

Click on the attached pdf for a list of H-D Diagnostic Trouble Codes.

Jerry