Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Saturn SC2 Standard, MP2FACTORY OEM SERVICE PROCEDURE
Powertrain Control Module: Notes
CAUTION:
In order to prevent possible electrostatic discharge damage to the Powertrain Control Module (PCM), do not touch connector pins or soldered components on circuit board. Service of PCM should normally consist of either replacement of the PCM or Electrically Erasable Programmable Read Only Memory (EEPROM) programming. If the diagnostic procedures call for PCM replacement, test the PCM first to see if PCM is the correct part. If PCM is faulty, remove PCM and install a new service PCM. The new service PCM is not programmed. You must program the new PCM. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.
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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