CLS Failed Low

[dreamchasers]

OK you experts our there!

My neighbor experienced an alarm on his Detroit Pro panel that stated" CLS Failed Low". I can only guess that it means Coolant Sensor Failed Low, again guessing the computer has sensed the sensor is shorted or open? He stated he received the alarm and was still able to normally drive without any issues. He did check the coolant tank level in the rear and all looked good.

I also guess, a new coolant sensor would be the first step in troubleshooting?

I hate to guess among the giants in the Prevost world, it seems to always turn out not good.


Any Ideas?

Hector

[LNDYCHT]

I believe there are two coolant level sensors the first trips the code and the second puts the engine in protection mode. Below is a manual that should answer your questions courtesy of Prevost. Gotta love the internet!

http://prevostparts.volvo.com/technicalpublications/pdf/7SA743.pdf

[dreamchasers]

Thanks,

Hector

[HarborBus]

Hector, to eliminate the tank sensor just unplug the wire from the sensor, take a small jumper wire and short across the contacts if the alarm stops you know it's that sensor.