C2116 on 2014-2021 RAM 1500 — Manufacturer-Specific TPMS Sensor/Pressure Circuit Fault
1 vehicles · 1 makes · $350-$1,500 repair
How to diagnose and fix C2116: most-reported vehicles
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RAM 1500 · 2014–2021
The ABS/Electronic Brake Control Module (EBCM) on Ram 1500 trucks suffers internal electronic failures separate from the software-related ESC recalls. Owners report the ABS, brake, traction-control and related warning lights coming on together with stored codes such as C2200 (internal electronic failure), U0121 (lost communication with ABS module) and C2116 (pump motor fault / pump supply low voltage). C2116 in particular is a strong indicator the ABS pump/module itself has failed. The base brakes still function but ABS, stability and traction control are disabled, and the module must be VIN-programmed when replaced.
Common Symptoms
- ABS, brake, and traction/stability lights illuminated together
- 'Service ABS / Electronic Braking System' messages
- Loss of ABS and stability control
- Code C2116 pump supply low voltage
- Lost communication with ABS module (U0121)
How to Fix
Scan and confirm the module codes. For C2116/C2200 internal faults, the EBCM/ABS module is replaced (or sent for bench repair) and then programmed to the truck's VIN. Always check first whether the truck is covered by an active ABS-related recall or software TSB, which may fix the symptom for free. Verify proper brake-pedal feel and warning-light clearance after repair.
Sources for this issue (3)
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C2116 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C2116 mean?
C2116 stands for "Manufacturer-Specific TPMS Sensor/Pressure Circuit Fault." C2116 is a manufacturer-specific chassis code in the Tire Pressure Monitoring System family. It generally indicates the TPMS control module detected a sensor, pressure-reading, or circuit value that is out of the expected range or implausible. Because the exact meaning is maker-defined and not part of a generic standard, it should be read conservatively as a TPMS sensor/circuit fault. The TPMS warning light typically comes on; tire pressures should be checked manually.
What are the most common causes of C2116?
The most common causes of C2116 are: Faulty TPMS sensor or low sensor battery, Out-of-range or implausible pressure reading, Sensor ID registration error, Wiring/connector or receiver fault, RF interference, TPMS module fault. The specific cause varies by vehicle.
How much does it cost to fix C2116?
Repair costs for C2116 range from $350 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by C2116?
Au7o has documented C2116 across 1 vehicle models from 1 manufacturers: RAM.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.