C2116: How to Diagnose & Fix — Manufacturer-Specific TPMS Sensor/Pressure Circuit Fault
2 vehicles · 2 makes · $50-$1,500 repair
How to diagnose and fix C2116: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
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)
Jeep Gladiator · 2020–2025
The TPMS (Tire Pressure Monitoring System) sensors in Gladiators fail prematurely, often within 2-3 years. The sensors are exposed to harsh conditions — off-road impacts, mud, water crossings, and tire changes — that exceed the design life of the batteries and electronics. When sensors fail, the TPMS warning light illuminates and the system cannot monitor tire pressure. Gladiator owners who run a second set of wheels for off-road use experience double the sensor failure rate.
Common Symptoms
- TPMS warning light on dash
- Individual tire pressure readings showing dashes
- TPMS light stays on after setting correct pressure
- Intermittent TPMS readings that drop out
- All four readings lost simultaneously (module issue vs sensor)
How to Fix
Replace failed TPMS sensors with OEM Mopar sensors or quality aftermarket (Schrader or Continental). After installation, a TPMS relearn procedure is required using a TPMS tool or dealer scan tool. For owners with two sets of wheels, program both sets of sensors to the vehicle. Consider valve-stem-mounted sensors instead of band-clamp style for off-road wheels, as they are more durable. TPMS sensors are NOT covered under the 3-year/36,000-mile warranty — they are considered a wear item.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mopar TPMS sensor for early-build GladiatorOEMMopar 68510382AA (supersedes 68464665AA/AB)
A scan-confirmed failed TPMS sensor on a 2020 or 2021 Gladiator built through June 7, 2021 Fitment/availability: 68510382AA supersedes 68464665AA/AB and fits the early-build branch only. Confirm VIN/build date and North American 433 MHz …
- Genuine Mopar TPMS sensor for late-build GladiatorOEMMopar 68339096AB
A scan-confirmed failed TPMS sensor on a Gladiator built June 8, 2021 or later Fitment/availability: 68339096AB is the late-build 433 MHz sensor and is not compatible with trucks built June 7, 2021 or earlier. Confirm VIN/build date, whe…
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Sources for this issue (1)
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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 $50 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by C2116?
Au7o has documented C2116 across 2 vehicle models from 2 manufacturers: Jeep, RAM.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.