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.
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HOMESERVICE MANUALSCHEVROLET2001MONTE CARLO V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIRPOWERTRAIN CONTROL MODULE (PCM) REPLACEMENT
2001 Chevrolet Monte Carlo V6-3.8L VIN K
Powertrain Control Module (PCM) Replacement
2001 Chevrolet Monte Carlo V6-3.8L VIN KSECTION Powertrain Control Module (PCM) Replacement
Service of the PCM should normally consist of either replacement of the PCM or electrical erasable programmable read only memory (EEPROM) programming. If the diagnostic procedures call for PCM replacement, check the PCM first to see if the part is correct. If the PCM is faulty, remove the PCM and install the new service PCM.
The new service PCM will not be programmed. You must program the new PCM. Diagnostic Trouble Code (DTC) P0602 indicates the EEPROM is not programmed or has malfunctioned.
NOTE:
^ Do not touch the connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage to the PCM.
^ Turn the ignition OFF when installing or removing the PCM connectors and disconnecting or reconnecting the power to the PCM (battery cable, PCM pigtail, PCM fuse, jumper cables, etc.) in order to prevent internal PCM damage.
Removal Procedure
1. Disconnect the negative battery.
2. Disconnect the IAT sensor electrical connector.
3. Remove the 3 bolts from the inner fender brace and remove the brace.
4. Loosen the clamp securing the air intake duct to the air cleaner housing.
5. Carefully remove the air intake duct from the throttle body and air cleaner housing.
6. Remove the 2 screws (2) from the 2 air cleaner housing sections.
7. Remove the air cleaner housing cover assembly.
8. Without disconnecting the PCM connectors, remove the PCM and harness from the PCM housing.
9. Disconnect the PCM connectors.
Installation Procedure
NOTE: Refer to Fastener Notice in Service Precautions.
1. Reconnect the PCM connectors.
Tighten
Tighten the connectors to 8 N.m (71 lb in).
2. Carefully reinstall the PCM and harness into the PCM housing.
3. Reinstall the air cleaner housing cover assembly (1).
4. Reinstall the 2 screws from the 2 air cleaner housing sections.
5. Carefully reinstall the air intake duct to the throttle body and air cleaner housing.
6. Tighten the clamp securing the air intake duct to the air cleaner housing.
7. Position the inner fender brace and reinstall the 3 bolts.
8. The Replacement PCM will NOT allow Secondary AIR Pump operation until a total of 10 miles have been accumulated.
9. The new PCM must be programmed. Programming and Relearning
The new service PCM will not be programmed. You must program the new PCM. Diagnostic Trouble Code (DTC) P0602 indicates the EEPROM is not programmed or has malfunctioned.
NOTE:
^ Do not touch the connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage to the PCM.
^ Turn the ignition OFF when installing or removing the PCM connectors and disconnecting or reconnecting the power to the PCM (battery cable, PCM pigtail, PCM fuse, jumper cables, etc.) in order to prevent internal PCM damage.
Removal Procedure
1. Disconnect the negative battery.
2. Disconnect the IAT sensor electrical connector.
3. Remove the 3 bolts from the inner fender brace and remove the brace.
4. Loosen the clamp securing the air intake duct to the air cleaner housing.
5. Carefully remove the air intake duct from the throttle body and air cleaner housing.
6. Remove the 2 screws (2) from the 2 air cleaner housing sections.
7. Remove the air cleaner housing cover assembly.
8. Without disconnecting the PCM connectors, remove the PCM and harness from the PCM housing.
9. Disconnect the PCM connectors.
Installation Procedure
NOTE: Refer to Fastener Notice in Service Precautions.
1. Reconnect the PCM connectors.
Tighten
Tighten the connectors to 8 N.m (71 lb in).
2. Carefully reinstall the PCM and harness into the PCM housing.
3. Reinstall the air cleaner housing cover assembly (1).
4. Reinstall the 2 screws from the 2 air cleaner housing sections.
5. Carefully reinstall the air intake duct to the throttle body and air cleaner housing.
6. Tighten the clamp securing the air intake duct to the air cleaner housing.
7. Position the inner fender brace and reinstall the 3 bolts.
8. The Replacement PCM will NOT allow Secondary AIR Pump operation until a total of 10 miles have been accumulated.
9. The new PCM must be programmed. Programming and Relearning
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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.