Service Programming System

After replacing PCM or if program needs to be updated, refer to latest Techline information on PCM reprogramming. Before programming a PCM, the following must be observed, or PCM damage may occur:

The Tech 2® and the terminal must have the latest software.
The vehicle battery must be fully charged. The battery voltage should be 12-14 volts.
The Tech 2® and the terminal cable connections must be secure.
A battery charger must NOT be connected to the battery when programming a PCM.

After reprogramming, perform and PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS .