Jeep Wrangler / Wrangler Unlimited
Type JK
In Motortune ProNeed to read fault codes, reset the service light or check a warning lamp on your Wrangler / Wrangler Unlimited without a workshop trip? Motortune turns your iPhone and an ELM327 / OBD-II adapter into a scanner for the Jeep Wrangler / Wrangler Unlimited (type JK): it walks every control unit it can reach, names each fault in plain language, resets the service reminder and runs guided service routines. Free to scan; the one-time $18.99 Motortune Pro adds the write features.
Control units
Every unit the catalog lists for this model, across its model years — your car carries a subset, which the app finds when it connects. The tag says what reaches each one: Any adapter MS-CAN adapter vLinker MS Special cable
- Engine
- Engine control unitAny adapterServiceActuators
- Gearbox
- Electronic Shifter ModuleAny adapter
- Transmission control unitAny adapter
- Drivetrain
- Automatic Sway Bar System (ASBS)Any adapterActuators
- Brakes / ABS
- ABS Chrysler/Lancia/Jeep/RAMAny adapterActuators
- Steering
- Steering Angle SensorAny adapterActuators
- Airbags
- Occupant Classification ModuleAny adapter
- Occupant Restraint Module (Airbag)Any adapter
- Instrument cluster
- Instrument Cluster/Cabin Compartment Node (CCN)Any adapterActuators
- Body
- Central Gateway ModuleAny adapterActuators
- Climate
- HVAC (Heat, Ventillation and Air Conditioner)Any adapterActuators
- Keys & security
- Wireless Control Module (WCM)Any adapter
- Tyre pressure
- Tire Pressure Control ModuleAny adapter
- Infotainment
- Audio AmplifierAny adapter
- Hands Free Module (HFM)Any adapterActuators
- Radio Navigator moduleAny adapterActuators
What you can do
- Read fault codes, every reachable unit
- Freeze frame
- Vehicle & control-unit info
- Clear fault codesPRO
- Service / oil resetPRO
- Adaptations & resetsPRO
- CalibrationsPRO
- DPF & exhaustPRO
- Gearbox learnsPRO
- Brake bleedingPRO
- Actuator tests (502)PRO
- Control-unit browser, DID explorer, raw consolePRO
Service functions and actuator tests are matched to each unit’s software version when you connect, so your car may show a subset.
Adapter
Every control unit on this model sits on the standard OBD pins, so any ELM327 v1.5+ adapter reaches all 16 — Bluetooth LE or Wi-Fi. For a fast, dependable connection we recommend an OBDLink CX or Veepeak OBDCheck BLE+.
Other Jeep models: Cherokee KL · Commander XK · Commander / Meridian H1/H6 · Compass MP · Compass / Patriot MK · Gladiator JT · Grand Cherokee WK · Grand Cherokee WK2 · Grand Cherokee WL · Grand Commander K8 · Liberty / Cherokee KJ · Liberty / Cherokee KK · Renegade BU · Wrangler J8 · Wrangler JL
Wrangler / Wrangler Unlimited — frequently asked
Does Motortune work with the Jeep Wrangler / Wrangler Unlimited?
Yes. The Jeep Wrangler / Wrangler Unlimited (type JK) is in Motortune’s catalog with 16 control units, 16 of which Motortune can reach with the right adapter. Coverage is mapped from the diagnostic catalog; try Demo mode and the in-app compatibility check on your car before relying on it.
How do I read fault codes on a Jeep Wrangler / Wrangler Unlimited?
Plug an ELM327 / OBD-II adapter into the Wrangler / Wrangler Unlimited’s diagnostic socket, switch the ignition on, and connect from Motortune on your iPhone. It walks every control unit it can reach — engine, gearbox, drivetrain, brakes / abs and more — and lists each fault in plain language with the unit that reported it. Reading codes is free; clearing them is part of the one-time Motortune Pro.
Can I reset the service light on a Wrangler / Wrangler Unlimited myself?
Yes. Motortune resets the service / oil-change reminder on the Jeep Wrangler / Wrangler Unlimited the way a workshop tester does, with a guided step-by-step sheet. The service reset is part of the one-time $18.99 Motortune Pro.
Which service functions does Motortune run on the Wrangler / Wrangler Unlimited?
Adaptations & resets, Calibrations, DPF & exhaust, Gearbox learns, Brake bleeding — 12 guided routines across this model’s control units. The app confirms each unit’s software version before offering one, so what you see on your car can be a subset. Part of Pro.
What adapter do I need for the Wrangler / Wrangler Unlimited?
Every control unit on this model sits on the standard OBD pins, so any ELM327 v1.5+ adapter reaches all 16 — Bluetooth LE or Wi-Fi. For a fast, dependable connection we recommend an OBDLink CX or Veepeak OBDCheck BLE+.
How much does Motortune cost?
Motortune is free to download and scan. The one-time $18.99 Motortune Pro adds clearing codes, the service reset, service functions, actuator tests and per-unit live data. No subscription, and one purchase covers every Alfa Romeo, Fiat, Abarth, Lancia, Jeep, Chrysler, Dodge, RAM, Peugeot and Citroën you own.
Motortune Pro
On the Wrangler / Wrangler Unlimited
$18.99 one-time
- ✓Service reset
- 149service functions
- 502actuator tests
- ✓Clear fault codes
Reading fault codes is free. One purchase covers every Alfa Romeo, Fiat, Abarth, Lancia, Jeep, Chrysler, Dodge, RAM, Peugeot and Citroën in your garage, with Family Sharing. Try Demo mode first — no adapter needed.
Coming soon to the App StoreCoverage is mapped from a diagnostic catalog of these models and is provided as-is, with no warranty. Some cars may not respond, some features may be unavailable on your car’s software version, and some adapters may be incompatible — always confirm with Demo mode and the in-app compatibility check before relying on any result. Motortune is an independent diagnostic tool and is not affiliated with, sponsored by, or endorsed by Stellantis or any of its brands. Make, model and control-unit names appear here only to describe vehicle compatibility. All trademarks remain the property of their respective owners.