P1F17
System Isolation/Impact Sensor Fault - Hybrid/EV Battery System Contactors Open
P1F17 is an OBD-II diagnostic trouble code meaning: System Isolation/Impact Sensor Fault - Hybrid/EV Battery System Contactors Open. Common causes: physical damage to the shock sensor, high voltage battery insulation problems. Estimated repair cost: $167–556.
Symptoms
- The car goes into emergency mode
- Loss of power or inability to move
- Check engine light comes on
- High voltage system fault warning
- Opening battery contactors
Causes
- Physical damage to the shock sensor
- High voltage battery insulation problems
- Open or short circuit in the sensor circuit
- Battery management module malfunction
- Contact corrosion in a high voltage system
How to Fix
- Diagnostics of the state of the shock sensor
- Checking the integrity of the high-voltage battery insulation
- Testing the sensor circuit and contactors
- Replacing a faulty sensor or insulation components
- Repair only from an authorized dealer
Related codes
FAQ
What does the P1F17 code mean?
P1F17 is an OBD-II diagnostic trouble code that indicates: System Isolation/Impact Sensor Fault - Hybrid/EV Battery System Contactors Open
What causes a P1F17 error code?
The most common causes of P1F17 include: Physical damage to the shock sensor; High voltage battery insulation problems; Open or short circuit in the sensor circuit; Battery management module malfunction.
How do I fix a P1F17 diagnostic trouble code?
To fix P1F17: Diagnostics of the state of the shock sensor. Checking the integrity of the high-voltage battery insulation. Testing the sensor circuit and contactors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1F17?
Do not drive — repair immediately
How much does it cost to fix P1F17?
The estimated repair cost for P1F17 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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