OBDII Code List

P1E43 BUICK - 14 Volt Power Module System Overvoltage Sensing Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty 14 Volt Power Module
  • 14 Volt Power Module harness is open or shorted
  • 14 Volt Power Module circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1e43 Buick Description

The 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.
OBDII Code P1e43 Buick - 14 Volt Power Module System Overvoltage Sensing Circuit -

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