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P1F56 BUICK

P1F56 BUICK - Hybrid/EV Battery Pack Coolant Control Valve Stuck

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

  • Faulty Hybrid/EV Powertrain Control Module 2
  • Hybrid/EV Powertrain Control Module 2 harness is open or shorted
  • Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection

Possible symptoms

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

P1f56 Buick Description

The hybrid/EV battery pack coolant control valve drive circuit in the hybrid/EV powertrain control module 2 is two control circuit, terminal 1 (Drive A) and terminal 2 (Drive B), that can drive the valve motor in a forward or reverse direction. One end position of the range is the Radiator connection, the middle position is the bypass position and the other end is the chiller position.
OBDII Code P1f56 Buick - Hybrid/EV Battery Pack Coolant Control Valve Stuck - AutoCodes.com

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