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The duty cycle of the internal battery current sensor is less than 2 percent duty cycle or greater Action Taken When the DTC Sets The filtered battery current is set to 0.1 amp. The generator field control circuit duty cycle is set to 100 percent, battery voltage defaults The generator battery control module will request the driver information center (DIC) Conditions for Clearing the DTC The duty cycle of the internal battery current sensor is greater than 2 percent duty cycle or Clear the DTC with a scan tool. Diagnostic Aids Recommended Action: Clear the codes. Cycle the ignition. DTC B1566 IMPORTANT: You must cycle the ignition after clearing the DTC to turn OFF the DIC message of Service Charging System. Step Action Yes No Schematic Reference: Starting and Charging Schematics 1 Did you perform the Diagnostic System Go to Step 2 Go to 2 1. Install a scan tool. 2. Clear DTC. 3. Cycle ignition. Go to Testing
2007 Hummer H3 2007 ENGINE Engine Electrical - H3
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