Cummins CM2220B — supported tools

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Cummins CM2220B engine ECU supported by Flex via Bench, Boot. MCU MPC5566: internal FLASH reading, writing and checksum correction. Access requirements and any beta restrictions are specified per mode.

Last changed: 2026-10-31 · Card revision 2

Compatibility depends on ECU HW/SW, protocol and active licence. A tool missing from this list does not imply lack of support.

Tool

Connection

Operations

Scope and notes

Flex

Bench

Operations unspecified

CM2220B; Kenworth T660 -- 12.9L T660 I6 MX-13 (2003–2017); protocol 25571018; BENCH

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.15M, FLS0.15S, FLS0.5M, FLS0.5S. Check this Flex protocol for detailed reading, writing and memory functions.

Flex

Boot

Operations unspecified

CM2220B; Kenworth T660 -- 12.9L T660 I6 MX-13 (2003–2017); protocol 3550013; BOOT

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.15M, FLS0.15S, FLS0.4M, FLS0.4S, FLS0.5M, FLS0.5S. Check this Flex protocol for detailed reading, writing and memory functions.

Flex

Bench

Read (type unspecified)
Write
Checksum

Cummins CM2220B; MPC5566; internal FLASH; FLS0.15 / FLS0.5

Internal FLASH reading, writing and checksum correction. Requires the applicable Flex Heavy Duty or Full licence.

Flex

Boot

Read (type unspecified)
Write
Checksum

Cummins CM2220B; MPC5566; internal FLASH; FLS0.15 / FLS0.5

Internal FLASH reading, writing and checksum correction. Requires the applicable Flex Heavy Duty or Full licence.

Pinout Bench

No Bench pinout has been added.

Pinout Boot

No Boot pinout has been added.

Update history

Revision 2 · 2026-10-31
Revision 1 · 2026-10-31