LeSabre V6-181 3.0L (1986)
Engine Control Module: Service and Repair
When replacing a production ECM with a service ECM, transfer the broadcast code and production number from the production unit to the service
unit. Also, during replacement, the PROM or MEM-CAL must be removed from the ECM being replaced and transferred to the new unit. Refer to
PROM Or MEM-CAL, Replace for procedure.
1.
Disconnect battery ground cable.
2.
Disconnect two ECM electrical connectors.
3.
Remove ECM mounting hardware.
4.
Remove ECM from passenger compartment.
5.
Reverse procedure to install.
