C2116 on RAM: How to Diagnose & Fix
C2116 — RAM-specific definition
1 RAM model · 1 documented issue · 1 critical · $350-$1,500 repair
C2116 on RAM by model: symptoms, diagnosis and fix
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)
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 on a RAM?
On RAM, C2116: On Chrysler/Dodge/Jeep/RAM, C2116 is 'ABS PUMP MOTOR SUPPLY LOW VOLTAGE', set by the anti-lock brake module, not a TPMS code. Causes: harness/connector damage, ABS pump motor fuse open, fused B+ or ground circuit fault, ABS module, pump motor (FCA service chart: https://s3.amazonaws.com/jeepwranglerjk2010/7c033333.html). On RAM it is documented across 1 model: 1500.
How much does it cost to fix C2116 on a RAM?
Published repair estimates on RAM range from $350 to $1,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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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.