Does any one know anything about code 138703 engine hydraulic retarder oil temperature sensor
Cummins isx 15 engine retarder
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Klein26, Mar 3, 2021.
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Cummins doesnt use 6 digit fault codes. There is no such thing as that component description on the engine.
Wannabe tech, p608 and AModelCat Thank this. -
What truck is this in?
The only engine that has a Brake Saver hydraulic retarder is CAT. Has anybody been in, messing with parameters or done any updates recently? Kinda strange for a code to come up (most likely) related to a CAT engine. Makes me suspect this is a chassis issue and not a Cummins problem. -
Does anyone have a solution to this issue? I have the same problem. Sent to Peterbilt to scan and if need be, update. code still there and they are not very forth coming with any answers. 2012 Peterbilt cummins isx15.
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