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2014 Ram 1500 Big Horn 5.7L Oxygen sensors
Posted to Chrysler Electrical on 10/30/2025 2 Replies

Hello all, I'm having trouble with this truck. Keeps throwing p0138 B1S2 oxygen sensor heater curciut high code. We have replaced both down stream o2. I have swapped left and right sensors and code stays on B1. Ive tested for the signal from the PCM. I do ...

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  Related Documents & Media  2014 Ram 1500 Big Horn

 
Message Closed w/FIX

car Vehicle Data

2014 Ram 1500 Big Horn

VIN 1C6RR7GTXE
Engine5.7 L / 8 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedOxygen Sensors
ConditionsP0138, Heater Circuit High.
Message Closed w/FIX

car Vehicle Data

2014 Ram 1500 Big Horn

VIN 1C6RR7GTXE
Engine5.7 L / 8 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedOxygen Sensors
ConditionsP0138, Heater Circuit High.