P1F18 GMC - Hybrid/EV Battery Pack Coolant Pump Enable Circuit
P1F18 GMC Possible Causes
- Faulty Hybrid/EV Battery Pack Coolant Pump
- Hybrid/EV Battery Pack Coolant Pump harness is open or shorted
- Hybrid/EV Battery Pack Coolant Pump circuit poor electrical connection
First diagnose P1F18 GMC code
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 terminals.
Cost of diagnosing the P1F18 GMC code
Labor: 1.0The cost of diagnosing the P1F18 GMC 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.
P1F18 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1f18 Gmc DescriptionThe hybrid/EV battery pack coolant pump circulates coolant through the drive motor battery coolant radiator, drive motor battery coolant cooler and the hybrid/EV battery pack to control the temperature of the hybrid/EV battery pack. An enable signal from the hybrid/EV powertrain control module 2 to the hybrid/EV battery pack coolant pump provides overall control of the pump. When this circuit is high, the pump can operate. The pump is controlled with a pulse-width modulated signal from the hybrid/EV powertrain control module 2 to the hybrid/EV battery pack coolant pump. The higher the duty cycle the higher the pump speed. The hybrid/EV battery pack coolant pump provides a hard-wired pulse-width modulated feedback signal to the hybrid/EV powertrain control module 2. During normal operation, this feedback signal provides pump speed information to the hybrid/EV powertrain control module 2. The hybrid/EV battery pack coolant pump has some self-diagnostic capability. If the hybrid/EV battery pack coolant pump determines there is an internal fault it provides this information on this same feedback circuit instead of pump speed information.
P1F18 GMC More InformationNeed more information on how to fix the P1F18 GMC code?
Get Access to Factory Service Manuals
Need more help?Get the P1f18 Gmc code diagnosed by a professional: Find a repair shop in your area
P1F18 GMC 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 P1f18 Gmc code? Have you replaced any parts?
Any information is appreciated. Thanks