- Faulty Battery Pack
- Battery Pack harness is open or shorted
- Battery Pack circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1a59 DescriptionThe Battery Energy Control Module (BECM) monitors while deviation of the voltage across the battery pack is checked using the 3 module voltage sensors. If one module within the battery pack is bad, it will manifest itself in a high Delta V SOH (state of health).
P1A59 Information for specific makes
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