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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1802 (Information Center - Instrumentation, Message Center And Warning Chimes) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test O: The Vehicle Power Gauge Is Inoperative (Hybrid) >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The vehicle power gauge indicates the power demand when the transaxle is in DRIVE (D) range. The vehicle power gauge is only displayed in the empower display mode. The vehicle power gauge display provides the gasoline engine on/off threshold using a green box on the lower end of the gauge and a gauge display indicating the amount of acceleration demand through the accelerator pedal. As the accelerator is pressed during normal driving, the gauge display increases until the acceleration or power demand is great enough to require the assistance of the gasoline engine.

When the power demand is low and the vehicle is in the electric vehicle mode, the EV display at the bottom of the gauge illuminates. Under certain circumstances such as system warm up or battery charging, the gasoline engine runs regardless of how low the power demand is from the driver. In this case, the green box on the lower portion of the gauge indicating the gasoline engine on/off threshold is not displayed.

The Instrument Panel Cluster (IPC) receives the vehicle power data from the PCM and Battery Pack Sensor Module (BPSM) over the High Speed Controller Area Network (HS-CAN) communication bus.

If the PCM data is missing or invalid for less than 5 seconds, the IPC  defaults the vehicle power gauge to the last state, based upon the last known good actual power consumption data received. If the PCM data is invalid for 5 seconds or more, the IPC  sets DTC U0401:68 and defaults the vehicle power gauge to the full low position. If the PCM data is missing for 5 seconds or more, the IPC  sets DTC U0100:00 and defaults the vehicle power gauge to the full low position.

If the current/voltage data is missing or invalid for less than 5 seconds, the IPC  defaults the vehicle power gauge to the last state, based upon the last known good current/voltage data received. If the current/voltage data is invalid for 5 seconds or more, the IPC  sets DTC U0412:68 and defaults the vehicle power gauge to the full low position. If the current/voltage data is missing for 5 seconds or more, the IPC  sets DTC U0111:00 and defaults the vehicle power gauge to the full low position.

This pinpoint test is intended to diagnose the following: 

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