P1A89 SATURN - 42 Volt System Voltage Low
P1a89 Saturn DescriptionThe Accessory Power Module (APM) supplies the energy that flows between the high voltage, 300 volt, direct current (DC) and intermediate voltage, 42 volt, DC to support the Electric Power Steering (EPS). The APM receives a 42 volt enable command from the Hybrid Powertrain Control Module (HPCM) over the high speed hybrid GMLAN communication circuit. 42 volt APM functions will run only when the 42 volt APM enable is active on the high speed hybrid GMLAN communication circuit.
Need more help?Get the P1a89 Saturn code diagnosed by a professional: Find a repair shop in you area
P1A89 SATURN CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P1a89 Saturn code? Have you replaced any parts?
Any information is appreciated. Thanks