Usually when the circuit is high, theres a short in the wiring or the connector is bad, could be spread pins in the 120 acm pin connector,or other connectors on the one box, i would check those first.
If the code reade cicuit failed low its the sensor.
EEC 61 SPN 3226 2013 Freighliner Cascadia DD13
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by portrat, May 3, 2018.
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