2010 Chevrolet Cobalt SSFACTORY OEM SERVICE PROCEDURE

Engine Control Module Replacement

Fig 1: Identifying Engine Control Module
GM2033217Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure: 
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
1 Engine Control Module
CAUTION: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins or the soldered components on the circuit board.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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