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| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
The body control module (BCM) monitors the state of charge of the electrical system. If the BCM senses that the state of charge at ignition On is 30 percent lower than what it was when the engine was running.
The ignition must be in Accessory or Run mode for this code to set.
The state of charge at ignition On is 30 percent lower than when the engine was running and battery drain is more than 2 amps.
There is no battery telltale illuminated or DIC message displayed.
| • | The DTC will clear if the fault does not return after 50 consecutive ignition cycles. |
| • | The DTC will clear when run state of charge is greater than or equal to 80 percent. |
Starting and Charging Schematics
Charging System Description and Operation
Control Module References for scan tool information
Ignition ON, compare the scan tool Prev. State of Charge and Start Up State of Charge parameters. The scan tool readings should not differ by greater than 30 percent.
| ⇒ | If the scan tool readings differ by greater than 30 percent, refer to Battery Electrical Drain/Parasitic Load Test . |
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