P1E43 GMC - 14 Volt Power Module System Overvoltage Sensing Circuit
- Faulty 14 Volt Power Module
- 14 Volt Power Module harness is open or shorted
- 14 Volt Power Module circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1e43 Gmc DescriptionThe accessory DC power control module, also referred to as the 14 V power module, constantly monitors system input and output voltage. This sensor is internal to the 14 V power module and is not serviced separately from the control module.
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