maintenance

TPMS Sensor

for 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

Difficulty

Easy

Time

48 min

Tools

Steps

Replace or reprogram the Tire Pressure Monitoring System (TPMS) sensor on a 2014 Ram 2500 with 6.7L Cummins Diesel engine.

Warnings

⚠Ensure vehicle is on level ground and properly supported on jack stands before working under or around the vehicle.

⚠Tire removal and installation requires proper equipment to avoid injury. If tire mounting equipment is not available, have a tire shop perform the dismount/mount portion.

ℹ️TPMS sensors are vehicle-specific and must be programmed to the vehicle. Ensure you have the correct programming tool or scan tool capability before beginning.

ℹ️The 2014 Ram 2500 uses a 315 MHz TPMS system. Replacement sensors must match this frequency.

Tools required

Floor jackEssential

Jack standsEssential

Torque wrench (10-200 Nm)Essential

Tire pressure gaugeEssential

TPMS programming tool or scan tool with TPMS functionEssential

Valve core removal toolEssential

Tire mounting equipment or access to tire shopEssential

21mm socket (lug nuts)Essential

Pry bar or tire spoon

Bead breaker

Parts

TPMS sensor × 1 — Mopar 56029398AB or equivalent
Valve stem grommet/seal kit × 1 — Use OEM specification
Valve core (if needed) × 1 — Use OEM specification

Preparation

Park vehicle on level ground and engage parking brake.
Identify which wheel has the failed TPMS sensor using scan tool or by monitoring the TPMS warning light pattern.
Loosen wheel lug nuts approximately 1 turn while vehicle is on the ground.
Raise vehicle with floor jack at appropriate jacking point for the affected wheel.
Support vehicle securely on jack stands rated for the vehicle weight (2500 series is heavy-duty).
Remove wheel lug nuts completely and remove wheel from vehicle.

Procedure

1
Deflate tire completely
Remove the valve cap and use a valve core removal tool to extract the valve core from the TPMS sensor valve stem. Allow tire to deflate completely. Keep valve core if in good condition for potential reuse.
2
Break tire bead
Using a bead breaker or tire mounting machine, break both the inner and outer tire beads away from the rim. Work around the entire circumference to ensure bead is completely separated from the wheel.
3
Remove tire from wheel
Using tire spoons or tire mounting machine, carefully work the tire off the wheel rim. Take care not to damage the wheel finish. Once the first bead is over the rim, remove the second bead completely to separate tire from wheel.
4
Remove old TPMS sensor
Locate the TPMS sensor attached to the valve stem hole inside the wheel. Remove the sensor mounting nut or hardware from the inside of the wheel. Carefully pull the sensor and valve stem assembly through the wheel from the outside. Inspect the valve stem hole for damage or corrosion.
5
Install new TPMS sensor
Install the new grommet or seal onto the replacement TPMS sensor valve stem. Insert the new sensor assembly through the valve stem hole from outside the wheel. From inside the wheel, install the mounting hardware and tighten the retaining nut securely (typically hand tight plus 1/4 turn). Do not overtighten as this can damage the sensor or valve stem.
⚠Do not use power tools on TPMS sensor mounting hardware. Hand tighten only to avoid sensor damage.
6
Reinstall tire on wheel
Place tire back onto wheel and use tire mounting equipment to work both beads back over the rim edge. Apply tire lubricant to beads if necessary to ease installation. Ensure tire is properly seated and aligned with wheel.
7
Inflate tire and seat beads
Install valve core into the new TPMS sensor valve stem. Inflate tire to approximately 40 PSI to seat the beads properly against the rim. You should hear/feel both beads pop into place. Check that tire is evenly seated around entire circumference of wheel on both sides.
8
Set final tire pressure
Adjust tire pressure to the specification listed on the driver door jamb placard (typically 60-80 PSI front, 60-80 PSI rear depending on load for Ram 2500). Use tire pressure gauge to verify. Install valve cap.
9
Reinstall wheel on vehicle
Lift wheel onto hub and align holes with studs. Install lug nuts and hand tighten in a star pattern. Lower vehicle until tire just contacts ground but weight is still on jack stands.
10
Torque lug nuts
Using torque wrench, tighten wheel lug nuts to specification in a star pattern. Make at least two complete passes to ensure even torque distribution. Remove jack stands and lower vehicle completely. Make a final torque check with vehicle on ground.
Torque spec
Wheel Lug Nuts140 Nm (103 lb-ft)
11
Program TPMS sensor to vehicle
Using TPMS programming tool or scan tool, enter TPMS learning mode. Follow tool instructions to program the new sensor ID to the vehicle's TPMS control module for the specific wheel location. This typically involves triggering each sensor in a specific order (LF, RF, RR, LR) and waiting for confirmation beep or message.
ℹ️The TPMS system may require a relearn procedure after sensor replacement. Some procedures require driving the vehicle at specific speeds for the system to auto-learn.

Reassembly

Verify all lug nuts are torqued to specification after driving 50-100 miles.
Check tire pressure after 24 hours and adjust if necessary due to temperature changes or seating.

Verification

Start vehicle and verify TPMS warning light illuminates briefly during startup then extinguishes within 1-2 minutes.
Use scan tool to verify the new TPMS sensor is communicating with the vehicle and reporting correct pressure.
Drive vehicle for 5-10 minutes at speeds above 20 MPH to allow system to fully recognize new sensor.
Verify no TPMS warning lights or messages appear on instrument cluster.
Check tire pressure with manual gauge to confirm TPMS is reading accurately (within 1-2 PSI).