Powertrain
generic / SAE
P0529
Fan Speed Sensor Circuit Intermittent
Same as P0526 with intermittent or erratic signal. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 29
Possible causes
- Intermittent contact at connector high
- Connector with intermittent contact under vibration low
- Harness routed against vibrating component low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 80–320 €
- Estimated time: 0.4–1.4 h
- Component: fan speed sensor
- Component: fan speed wiring
- MIL / check engine light
Sources
References
sae:J2012