Hybrid/EV Battery Pack Coolant Control Valve Stuck
Table of contents
P1F56 CADILLAC 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
How do I fix code P1F56 CADILLAC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1F56 CADILLAC code
The cost of diagnosing the P1F56 CADILLAC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1F56 CADILLAC 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.