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.
2003 Chrysler PT Cruiser L4-2.4L VIN BFACTORY OEM SERVICE PROCEDURE
Engine Control Module: Service and Repair
POWERTRAIN CONTROL MODULE
REMOVAL
1. Disconnect the negative battery cable.


2. Lift vacuum line out from behind the upper support bracket.

3. Unlock and disconnect the 3 or 4 electrical connectors from the Powertrain Control Module (PCM).

4. Remove the clutch reservoir and relocate.



5. Remove the 3 mounting screws from the PCM mounting bracket and remove PCM and bracket assembly.

6. Remove the 3 screws from the PCM bracket to PCM.
INSTALLATION
1. Install the PCM bracket and 3 screws to the PCM and tighten to 11.8 Nm (105 in. lbs.).
2. Install the PCM and bracket assembly and locate the bracket on the tab.
3. Install the 3 mounting screws to the PCM mounting bracket and tighten to 10.7 Nm (95 in. lbs.).
NOTE: The electrical connector for the PCM are COLOR Coded.
4. Connect and lock the 3 or 4 electrical connectors to the Powertrain Control Module (PCM).
5. Relocate and install the clutch reservoir.
6. Connect the negative battery cable.
REMOVAL
1. Disconnect the negative battery cable.
Fig. 15 Powertrain Control Module:
Fig. 16 Vacuum Lines:
2. Lift vacuum line out from behind the upper support bracket.
Fig. 17 Electrical Connectors:
3. Unlock and disconnect the 3 or 4 electrical connectors from the Powertrain Control Module (PCM).
Fig. 18 Clutch Reservoir:
4. Remove the clutch reservoir and relocate.
Fig. 19 PCM Mounting Screws:
Fig. 20 PCM Mounting Screw And Location Tab:
Fig. 21 PCM Removal/Installation:
5. Remove the 3 mounting screws from the PCM mounting bracket and remove PCM and bracket assembly.
Fig. 22 PCM And Mounting Bracket:
6. Remove the 3 screws from the PCM bracket to PCM.
INSTALLATION
1. Install the PCM bracket and 3 screws to the PCM and tighten to 11.8 Nm (105 in. lbs.).
2. Install the PCM and bracket assembly and locate the bracket on the tab.
3. Install the 3 mounting screws to the PCM mounting bracket and tighten to 10.7 Nm (95 in. lbs.).
NOTE: The electrical connector for the PCM are COLOR Coded.
4. Connect and lock the 3 or 4 electrical connectors to the Powertrain Control Module (PCM).
5. Relocate and install the clutch reservoir.
6. Connect the negative battery cable.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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