This one-page document is an official Allison WTEC2 CIN conversion guide explaining how to roll a calibration identification number (CIN) from the 0700 series to the 0800 series for installation into a service ECU. Published under Allison’s Production Calibration Configuration System (PCCS), the bulletin eliminates the need for a fax-based re-calibration request form in most cases, reducing vehicle downtime for end users and saving distributors and dealers from waiting on a response from the Allison Calibration desk.
Official Allison WTEC2 CIN conversion document details
| Brand | Allison |
| Model coverage | WTEC2-equipped transmissions |
| System / Group | Production Calibration Configuration System (PCCS) |
| Publication no. | 1-PCCS-2004 |
| Year / Revision | 200404 (April 2004) |
| Pages | 1 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Document table of contents
- Background — history of the 0700-to-0800 CIN re-calibration request process
- Benefits — decreased vehicle downtime; no fax request form required
- Method — step-by-step CIN character conversion rules
- Examples — sample 0700-to-0800 CIN calculations
- Character sequence reference — alphanumeric order excluding O and I
- PCCS confirmation — “Obsolete CIN replaced” message and calibration list lookup
Applicable truck models
This bulletin applies to any vehicle equipped with an Allison WTEC2 electronic transmission controller that uses a 0700-series calibration identification number requiring conversion to the 0800 series. The WTEC2 controller was widely installed in medium- and heavy-duty trucks, buses, and specialty vehicles across multiple OEM platforms. Because the document addresses calibration data rather than a specific chassis, applicability depends on the CIN currently programmed in the service ECU. For further transmission and controller information, visit the Allison Transmission official website.
Who needs this Allison WTEC2 CIN conversion manual
Fleet technicians, independent mechanics, and Allison distributors or dealers who must reprogram a WTEC2 service ECU from a 0700-series calibration to the corresponding 0800-series calibration will find this bulletin essential. It provides the exact character-increment rule — replace 07 with 08 and advance the last check character by one position in the defined alphanumeric sequence (skipping the letters O and I) — so the correct CIN can be requested directly through PCCS without submitting the traditional fax re-calibration request form.
The full PDF of this WTEC2 CIN conversion bulletin is available in the DiagTechPro manuals library. A free account is required to download.
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