| VEHICLE DETAILS | |
|---|---|
| MAKES: | Ram® |
| MODELS: | Ram |
| YEARS: | 2013-2025 |
| ENGINES: | 6.7L |
| MODULE: | Engine Module |
| USAGE: | 2013-2025 Ram 6.7L Cummins |
| ALIASES: | CM2350B, CM2450B, CM2452B, CME, CMF Cummins |
NOTICE!
2025 ECUs introduce CAN FD protocol. This does not change the wiring for CM2452B ECMs, but will affect the data below. The information below is for 2013-2024 ECMs.
For CM2452B ECMs, be sure your programming interface tool supports CAN FD.
| SUPPORTED COMMUNICATION PROTOCOL(S) | DLC PIN(S) |
|---|---|
| CAN BUS | 16 WAY OBD-II DLC PINS 6 & 14 |
| J1939 | 9 WAY J1939 DLC PINS C & D |
POWERBLOCK CONNECTION
For communication on OBD-II DLC pins 2, 6, and 14, this harness requires OBD-II Pass-Through Harness. OBD-II Pass-Through Harness sold separately. For communication on J1939 9-pin DLC pins C and D, this harness requires J1939 Pass-Thru Harness. OBD-II to J1939 9-Pin DLC Harness also required for programming interface tool connection to PowerBlock. Add-on harnesses sold separately.  |