Hi has anyone come across error code p0528-00 (2a) fan speed sensor circuit no signal - throws the car into restricted performance mode.

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Did you have any luck sorting this?
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Hi everyone,
Did anyone sort this? I seem to have the same problem.
I pulled two error codes - P0483-37 fan performance + P0528-00 fan speed sensor - no signal. The fan blows at a high speed.
I have read that when there is no signal from the fan speed sensor, the fan starts blowing at its maximum speed to prevent possible overheat. It throws a RED restricted performance and happens only when the engine is hot, needs extra cooling and the ECU probably sends a signal to activate the fan and encounters a problem.

I’ve sorted this by replacing the EGR Temperature Sensor (P040D-00). Aparently this sensor is conected to the fan and cooling system.

I have the same error code popping up:

P0528-00 (6 8 ) Fan speed sensor circuit no signal
Triggered on 25-01-2025 13:09:03
At 144179 mi

However, no restricted performance warning - I wouldn't have known there was an issue if I hadn't plugged in my IID.
Noticed the fan is running (at slow speed) even when starting from cold, not sure if this is normal? 2011MY 4.4TDV8 Autobiography Baltic Blue
TVR Griffith
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