Electronic Control Module (ECM) R & I: Installation

Install PROM and CALPAC (if equipped) in new ECM. Reinstall ECM into vehicle. Reconnect electrical connectors to ECM. Install access panels. Reconnect negative battery cable to battery.

CAUTION: It is possible to install a PROM backwards. If PROM is installed backwards and ignition switch is turned on, the PROM circuitry will be destroyed and replacement will be necessary.