DEFINITION: The LOW VOLTAGE or HIGH VOLTAGE message is displayed across the Driver Information Center.

Has the Starting/Charging Diagnostic System Check been performed?

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Go to Step 2

Go to Diagnostic System Check - Engine Electrical

1. Inspect the battery condition, state of charge, and terminal connections.
2. Recharge the battery if necessary. Refer to Battery Charging .
3. Load test the battery. Refer to Battery Inspection/Test .

Does the battery pass the load test?

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Go to Step 4

Go to Step 3

Replace the battery. Refer to Battery Replacement .

Is the repair complete?

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Go to Diagnostic System Check - Engine Electrical

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1. Start the engine and allow it to idle in park.
2. Load the electrical system by turning on the highbeam headlamps and the heater blower to high.
3. Connect a DMM to the vehicle battery and measure the voltage.

Is the voltage within specified values?

13.5-15.0 V

Go to Step 5

Go to Charging System Test

Is the CHARGE SYSTEM FAULT message displayed on the Driver Information Center?

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Go to DTC P0562 System Voltage Low or DTC P0563 System Voltage High

Go to Step 6

Does the Instrument Panel Cluster volt gauge indicate abnormal voltage readings?

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Go to Volt Gage Inaccurate or Inoperative

Go to Step 7

Replace the Instrument Panel Cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

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Go to Step 8

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1. Clear any DTCs which may have set.
2. Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Diagnostic System Check - Engine Electrical