Emission Control Systems: Service and Repair

The Power Loss/Limit lamp will be illuminated for approximately 3 seconds after the ignition switch has been placed in the On position as a bulb check. If incorrect or no signals are received by the logic module from various sensors, the logic module will illuminate the Power Loss/Limit lamp. After diagnosing and servicing the fuel injection system or EGR system (California models with EGR sensor), the logic module memory can be cleared by disconnecting and connecting the battery quick disconnect.