P0526moderate severityPowertrain
Cooling Fan Speed Sensor Circuit
on 2000 BMW X5 4.4i E53 4.4L V8 M62 · AWD
What this code 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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Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1