Service Programming System: Notes

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, program theft deterrent system components. See THEFT DETERRENT SYSTEM COMPONENTS .