P0528 - Fan Speed Sensor Circuit High

The fan-speed sensor signal is higher than expected.

Code Overview

The fan-speed sensor signal is higher than expected.

Common Causes

• Failed fan-speed sensor
• Cooling fan or control issue
• Damaged wiring or connector

Diagnostic Steps

1. Inspect sensor and fan wiring
2. Compare fan-speed data to actual fan operation
3. Check for relay, fuse, or control faults

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.