Mopar 68259556AE is the anti-lock brake control module listed for late JK Wranglers. When it fails, the ABS, traction control and ESP lights come on together and the speedometer can act up. A new one is expensive and has to be programmed to your VIN, which is why rebuilding the original unit is the first thing most owners look at.
Fitment
2014–2018 Wrangler JK built after 6/30/2014 (Auto Module Lab's catalog split). Earlier JKs use different module numbers, so match the label on your old unit. Always confirm the number on your old part or run your VIN at a Mopar parts counter before you order.
Common failure symptoms
- ABS, traction control and ESP/BAS warning lights on at the same time
- Codes for lost communication with the ABS module (U0121) or internal module faults
- Speedometer drops out or cruise control won't engage, since both rely on ABS wheel-speed data
- Intermittent faults that clear after a key cycle and come back, often worse in wet weather
Cross-reference
| Brand | Part number | Notes | Source |
|---|---|---|---|
| Mopar (new) | 68259556AE | OEM part. Must be programmed to the VIN with a scan tool after install. | source |
| Auto Module Lab (rebuild) | Mail-in service | Rebuilds your original module, so no VIN programming is needed for a same-unit repair. | source |
Price check (October 22, 2026): Auto Module Lab lists 68259556AE at $2,025 list and about $1,397 at online sale prices, and its own rebuild service at about $499. Dealer installs we found ran about $1,732–$1,829. Prices change; confirm before you buy.
Rebuild, repair or replace?
Rebuild first if your Jeep isn't needed daily for a few days. A rebuild repairs the original module, so it keeps your VIN coding and avoids the programming step. Replace with new when the housing or pump motor is physically damaged, or when the rebuilder says the unit can't be repaired. Before you spend either way, rule out the cheap causes: a failed front wheel speed sensor, corroded connector pins, or a bad power or ground to the module can all throw the same lights.
If you buy a Mopar replacement hydraulic control unit (HCU) rather than just the module, check it against NHTSA campaign 24E100000. That 2024 Mopar parts recall covers replacement HCU numbers 68195569AA and 68143491AA.
Where to buy
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FAQ
Does a new 68259556AE need programming?
Yes. The JK factory service manual says a new anti-lock brake module must be reprogrammed with a scan tool, and Auto Module Lab notes the new part must be programmed to your VIN.
Can a bad wheel speed sensor look like a bad ABS module?
Yes. A failed front sensor turns on the same ABS and traction lights. Read the codes first: a sensor fault points to one wheel, while communication or internal faults point to the module.
Does this fit a JL?
No. JL Wranglers (2018 and later) use different modules. See our JL U0121 guide for that generation.
Related guides
Sources
- Auto Module Lab: JK ABS repair and 68259556AE pricing
- JK factory service manual: anti-lock brake module
- NHTSA campaign 24E100000 (Mopar replacement HCU recall)
Part numbers and fitment were checked against the sources above on October 22, 2026. Mopar supersedes numbers over time. If a newer letter suffix shows up, it generally replaces the one listed here. Back to the parts lookup.