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 MANUALSJEEP1991CHEROKEE 2WD L4-150 2.5L VIN P MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULESERVICE AND REPAIR
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFI
Engine Control Module: Service and Repair
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFISECTION Service and Repair
Engine Controller:
REMOVAL
1. Disconnect the battery negative cable.
2. Loosen 60-Way connector mounting screw until connector can be disengaged from the Single Board Engine Controller (SBEC).
3. Pull 60-Way connector straight back from SBEC.
4. Remove SBEC mounting screws.
5. Remove SBEC.
INSTALLATION
1. Install SBEC and torque the mounting screws to 9 lb.in. (1 Nm).
2. Engage the 60-Way connector into the SBEC. Tighten the connector mounting screw to 35 lb.in. (4 Nm).
3. Connect the negative cable to the battery.
RENDER: 1.0x
NO RELATED
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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.