change the fan relays
the hdi and the TU1 engine see these and faults if they are fobared there are two relays slow and fast speed and maybe a resistor
The TU1 logs a fault in ecu with the relays out or faulty normaly the ecu refers the fault to the temp sensor though the ecu needs reseting after the fault is cleared or strange things happen
the hdi and the TU1 engine see these and faults if they are fobared there are two relays slow and fast speed and maybe a resistor
The TU1 logs a fault in ecu with the relays out or faulty normaly the ecu refers the fault to the temp sensor though the ecu needs reseting after the fault is cleared or strange things happen