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.
Check CMPS
2017 Hyundai Santa Fe SE, FWDSECTION Check CMPS
- IG "OFF". Connect GDS.
- ENG running and Measure signal waveform at signal terminal of CMPS.
Reference Signal Waveform:
0
- Is the measured signal waveform normal?
YES
- Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known - good CMPS and check for proper operation. If the problem is corrected, replace CMPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
RENDER: 1.0x
NO RELATED
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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.