P0526
PowertrainCooling Fanmoderate severityCooling Fan Speed Sensor Circuit
What P0526 Means
The PCM detects a problem with the cooling fan speed sensor signal. This sensor tells the module how fast the cooling fan is actually spinning.
Symptoms
- Engine overheating
- Cooling fan runs incorrectly
- Check engine light on
Common Causes
- Faulty fan speed sensor
- Damaged wiring or connector
- Failing cooling fan motor
- Faulty PCM
Diagnostic Steps
- Scan for stored codes
- Inspect fan sensor wiring
- Check fan speed signal with scan tool
- Test cooling fan operation
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ANCEL AD410 →
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Serious DIY~$100
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Autel MaxiCOM MK808S →
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✓ Autel official store
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