HD-48650-RESS: RESS DIAGNOSTIC HARNESS
HD-48650-RESS07-31-2021
General
See Figure 1. The RESS DIAGNOSTIC HARNESS (Part Number:HD-48650-RESS) is used to allow for Rechargeable Energy Storage System (RESS) connectivity with or without the vehicle.
Figure 1. HD-48650-RESS: RESS DIAGNOSTIC HARNESS
Operation
WARNING
Rider and passenger safety depend upon the proper use of this tool. Use the appropriate service manual procedures. If the procedure is not within your capabilities and/or you do not have the proper tools, have a Harley-Davidson dealer perform the installation. Improper service and/or tools could result in death or serious injury. (08805a)
PREPARE
NOTE
If the RESS is removed from the vehicle go to INSTALL.
1. Place vehicle upright on a level surface or suitable lift if available.
2. Remove battery and battery box. See service manual.
3. Remove right side rider foot peg assembly. See service manual.
4. Remove right side primary cover. See service manual.
REMOVE
1. See Figure 2 and Figure 3. Disconnect connector (1).
a. Using a hook pick, squeeze tabs on side of connector.
b. Disconnect connector from Battery Disconnect Unit (BDU) Disconnect.
INSTALL
1. Install RESS Diagnostic Harness:
a. Connect RESS Diagnostic Harness to BDU Disconnect.
b. Connect Data Link Connector (DLC) end of RESS Diagnostic Harness to Techlink 3 and included power adapter.

Special Tool: TECHLINK 3 (HD-48650-TL3)

1BDU connector
2RESS
Figure 2. BDU Connector Location
1BDU disconnect connector
Figure 3. BDU Disconnect Connector Location
COMPLETE
1. Disconnect Techlink 3 and included power adapter.
2. Disconnect RESS Diagnostic Harness.
3. Connect connector to BDU Disconnect.
4. Install right side primary cover. See service manual.
5. Install right side rider foot peg assembly. See service manual.
6. Install battery box and battery. See service manual.