Pinpoint Test P: The Split Power Gauge Is Inoperative
Instrumentation, Message Center and Warning Chimes
Pinpoint Test P: The Split Power Gauge Is Inoperative (Hybrid)
Normal Operation
The split power gauge is actually a dual gauge indication. The LH side of the gauge provides the propulsion power supplied by the electric motor in the electric vehicle mode. The RH side of the gauge provides the propulsion power supplied by the gasoline engine. When the vehicle is powered by the electric motor in electric vehicle mode, the gauge illuminates the EV icon at the bottom of the gauge. The split power gauge is only displayed in the engage display mode.
The Instrument Panel Cluster (IPC) receives the split power gauge data from the PCM and the Battery Pack Sensor Module (BPSM) over the High Speed Controller Area Network (HS-CAN) communication bus.
The IPC requires multiple operational messages to control the split power gauge. The following table provides a summary of the messages and the originating module.
If the PCM data is missing or invalid for less than 5 seconds, the IPC defaults the split 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 split 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 split 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 split 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 split 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 split power gauge to the full low position.
This pinpoint test is intended to diagnose the following:
- PCM concern
- High voltage battery concern
- IPC
PINPOINT TEST P: THE SPLIT POWER GAUGE IS INOPERATIVE (HYBRID)
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P1 VERIFY THAT THE IPC IS IN THE CORRECT DISPLAY SETTING
- Ignition ON.
- Using the setup menu, verify that the IPC is in the engage display mode.
- Is the IPC in the engage display mode?
Yes
GO to P2.
No
SET the display setting to engage mode.
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P2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST
- Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any DTCs recorded?
Yes
DIAGNOSE all PCM DTCs first. REFER to Computers and Control Systems Information.
No
GO to P3.
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P3 RETRIEVE THE RECORDED DTCs FROM THE BPSM SELF-TEST
- Check for recorded BPSM DTCs from the self-test.
- Are any DTCs recorded?
Yes
DIAGNOSE all BPSM DTCs first. REFER to High Voltage Traction Battery Testing and Inspection.
No
GO to P4.
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P4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
- Are any DTCs recorded?
Yes
REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes
No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.
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