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2012 Ram 5500 ST 6.7L MIL Lamp on, can low
Posted to Chrysler Driveability on 7/1/2026 2 Replies

can bus hooked up on break out box, we get can low and can high, then we lose can low. voltage on both are 2.44 vdc. the terminating resister are at 61.4 ohms. driving when it gets hot it starts setting the above comm cods (abs, tcm ) for no communication....

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car Vehicle Data

2012 Ram 5500 ST

VIN 3C7WDNALXC
Engine6.7 L / 6 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Can Low
OccursHot

Trouble Codes

U0001CAN 'C' Bus
U0101No Transmission Bus Message
Open Help Request

car Vehicle Data

2012 Ram 5500 ST

VIN 3C7WDNALXC
Engine6.7 L / 6 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp on, Can Low
OccursHot

Trouble Codes

U0001CAN 'C' Bus
U0101No Transmission Bus Message