Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Ford Explorer XLT, RWDFACTORY OEM SERVICE PROCEDURE
P032A - Knock/Combustion Vibration Sensor C Circuit
DTC DESCRIPTION P032A - KNOCK/COMBUSTION VIBRATION SENSOR C CIRCUIT
| Description: | This DTC sets when the voltage goes outside a calibrated level. The knock sensor 12 (KS12) detects vibrations upon increase and decrease in engine RPM. The KS12 sensor generates a voltage based on this vibration. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | A KS12 sensor voltage greater than 0.5 volt with the ignition ON, engine OFF, indicates a concern is present. The vehicle may need to be driven for several minutes to set this DTC. |
||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test DG. | ||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.