Peugeot 406 stop indicator/radiator fans

Car: Peugeot 406
Variant: 2.1 TD
Model Year: 1997
Categories: Electrics, ECU, Warnings & Lights
Driving normally, with temp gauge showing 80c, dash stop light came on and radiator fans started up at full speed. Remained on even though all fluid levels and indicated engine temp were ok. Remained on when engine switched off for around 5 mins. Next day, all back to normal. Any ideas? ECU problems maybe?
Posted: Dec 4, 2015 (8 years ago)
Not really concerned with the ECU on these,
fan/s run through relays controlled by the coolant temperature sensor/
check that first
Posted Dec 4, 2015 (8 years ago)
Thanks for the advice, dealer thought the same. 2 sensors and 2 relays ordered.
Posted Dec 5, 2015 (8 years ago)
Thought maybe it was the Bitron unit that controlled fans.
Posted Dec 5, 2015 (8 years ago)
Thanks, dealer parts guy printed schematics showing where all components are. Bitron unit does look suspect.
Thanks for your help, much appreciated.
Posted Dec 6, 2015 (8 years ago)

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