Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 1994 >> Cavalier/Z24 V6-191 3.1L VIN T MFI >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Control Module: Service and Repair

ECM


Remove or Disconnect:

1. Negative battery cable.

2. Interior access panel.

3. Connectors from ECM/PCM.

3. ECM/PCM.

NOTICE: To prevent possible electrostatic discharge damage to the ECM/PCM, Do Not touch the connector pins or soldered components on the circuit board.


Install or Connect:

1. New ECM/PCM.

2. ECM connectors to ECM/PCM.

3. Negative battery cable.

4. interior access panel.




pro multis · About Operation CHARM