christopherdrache1
Equus Transmission Emergency Mode
Summary of the thread
The 2010 Hyundai Equus was experiencing transmission issues, including emergency mode activation, shifting problems, and grinding noises, with error codes related to radiator oil pressure. A potential cause identified was a faulty connection to the radiator oil pressure sensor. The suggested solution was to inspect and repair the sensor and its wiring, which resolved the issue after cleaning a corroded connector.
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4 comment(s)
christopherdrache1 (community.author)
Interesting! So, you're saying a faulty pressure sensor on the radiator could trigger all those transmission issues? Was your Saab also going into emergency mode?
georg_baumann1
Yep, exactly. The Saab went into limp mode too because the transmission control unit gets faulty data from the faulty sensor. I'd definitely advise having a workshop check the sensor and its wiring harness to be extra sure. They have the right equipment.
christopherdrache1 (community.author)
Thanks, that's helpful! I took it to a shop, and you were spot on. Turns out the connector to the radiator oil pressure sensor was corroded. They cleaned it and charged me 95€ to fix it. Runs like a champ now!
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HYUNDAI
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EQUUS
georg_baumann1
Sounds rough! I had similar symptoms with my old Saab after the winter. Although the car was different, the radiator oil pressure sensor was causing havoc. Check for any obvious damage to the cable or the connector. Might be a simple fix!