2024-2025 Jeep Wrangler Multiple System Faults TSB

Owners of 2024-2025 Jeep Wrangler vehicles may experience a range of issues, including the illumination of the Malfunction Indicator Lamp (MIL) and various Diagnostic Trouble Codes (DTCs). This Technical Service Bulletin (TSB) 23-019-25 REV. A, also released as Rapid Service Update (RSU) 25-069, provides a comprehensive guide for diagnosing and repairing these manufacturing-related problems.

This bulletin supersedes the previous TSB 23-019-25 dated April 22, 2025, and includes updates to affected vehicles and additional customer symptoms. The repairs outlined are designed to address the underlying manufacturing issues causing these diverse problems in the Jeep Wrangler multiple system faults.

Symptoms

Customers may observe a Malfunction Indicator Lamp (MIL) illumination along with one or more specific Diagnostic Trouble Codes (DTCs). Additionally, several other operational issues may be present, indicating a Jeep Wrangler multiple system faults condition. These include:

• "The electronic throttle inspection required indicator illuminates on the Instrument Panel Cluster (IPC)."
• Seatbelt warning light and warning sound do not turn off, even when the passenger seat belt is fastened.
• Coolant leak from under the long-life coolant reserve tank.
• Broken fuel cap strap.
• Doors not opening or being hard to open, specifically for both right-side doors.
• Inoperative lumbar switch.
• Torn stitching on the right front seat cover.
• Deformation of the header seal.

Fault Codes / DTCs

If your vehicle exhibits a Malfunction Indicator Lamp (MIL) illumination, it may be accompanied by one or more of the following Diagnostic Trouble Codes (DTCs):

Code	Description
P0133	O2 Sensor 1/1 Slow Response
P2251	O2 Sensor 1/1 Negative Current Control Circuit/Open
P0131	O2 Sensor 1/1 Circuit Low
P2626	O2 Sensor 1/1 Pump Cell Current Trim Circuit/Open
P0607	ECU Internal Performance
C140A	Transfer Case Motor Control
P02EE	Cylinder 1 injector Circuit Performance
P02EF	Cylinder 2 injector Circuit Performance
P02F0	Cylinder 3 Injector Circuit Performance
P02F1	Cylinder 4 Injector Circuit Performance
U0109	Lost Communication With Fuel Pump Control Module
P0330	Knock Sensor 2 Circuit
P023B	Charge Air Cooler Coolant Pump "A" Control Circuit Low
P2110	Electronic Throttle Control - Forced Limited RPM

Diagnosis and Trigger Conditions

To diagnose the Jeep Wrangler multiple system faults, technicians should use a wiTECH scan tool. This tool allows for verification that all related systems are functioning as designed. If any DTCs or symptom conditions, other than those listed in this bulletin, are present, they should be recorded and addressed before proceeding with the TSB's repair procedure.

It's important to check if your vehicle's VIN is listed in the VIP system or on the RSU VIN list. If it is, the repair should be performed. If your vehicle is not on the VIN list but exhibits any of the symptoms described, the repair procedure should still be followed.

Repair Procedure Summary

The repair process for the Jeep Wrangler multiple system faults involves a series of inspections and conditional repairs based on the specific symptoms and DTCs present. The general flow is as follows:

1. Seatbelt Warning Light Issue: If the seatbelt warning light and sound do not turn off, the rear seat belt buckle is replaced.
2. Door Latch Malfunction: If the right front or right rear door does not open, the corresponding door latch is replaced.
3. Knock Sensor Fault: If DTC P0330 (Knock Sensor 2 Circuit) is set, the knock sensor is replaced.
4. Lumbar Switch Inoperability: If the power seat lumbar switch is not operating, it is replaced.
5. Seat Cover Damage: If the front left seat back cover has tearing stitches, the cover is replaced.
6. Header Seal Deformation: If the header weatherstrip is deformed, it is replaced.
7. Fuel Cap Tether Strap Issue: If the fuel cap tether strap is broken, the tether strap and fuel cap assembly are replaced (refer to Fig. 1 for visual guidance).
8. Coolant Leak: If there is a coolant leak from the coolant bottle, the coolant bottle is replaced.
9. O2 Sensor DTCs: If DTCs P0133, P2251, P0131, or P2626 are set, the upstream oxygen sensor is replaced.
10. Charge Air Cooler Coolant Pump Fault: If DTC P023B is set, the low temperature auxiliary coolant pump is replaced.
11. Multiple Engine/Module DTCs: If DTCs U0109, P02EE, P02EF, P02F0, P02F1, P0607, or C140A are set, the Powertrain Control Module (PCM) is replaced.
12. Electronic Throttle Control Fault: If DTC P2110 is set, the throttle body is replaced.

After all necessary repairs are completed, all Diagnostic Trouble Codes (DTCs) must be cleared from the vehicle's system.

Required Tools or Parts

Technicians will require a wiTECH scan tool or an equivalent diagnostic system. Various parts may be needed depending on the specific symptoms and DTCs encountered. Some of the potential parts include:

• Rear Seat Buckle (Part No. 7KA56TX7AA)
• Coolant Recovery Bottle (Part No. 68364312AC)
• Fuel Tank Cap Kit (Part No. 68357474AC)
• Front Door Latch (Part No. 68456844AA)
• Upstream Oxygen Sensor (Part No. 68617422AB)
• Auxiliary Coolant Pump (Part No. 68290300AA)
• Generic Engine Control Module, GPEC V (Part No. 68654606AA)
• Throttle Body, ETC (Part No. 68428448AB)
• Lumbar Control Switch (Part No. 68577697AA)
• Left Front Seat Back Cover (Part No. 7TA07TX7AB)
• Knock Sensor (Part No. 68577697AA)
• Windshield Header Weatherstrip (Part No. 68271695AI)
• Antifreeze, Coolant (Part No. 68163848GB)

Owner Action

If you own a 2024-2025 Jeep Wrangler and are experiencing any of the described symptoms or a Malfunction Indicator Lamp (MIL) illumination, it is recommended to contact your authorized Jeep dealer. They can verify if your vehicle is covered by TSB 23-019-25 REV. A or RSU 25-069 by checking your VIN in the VIP or RSU VIN list. All repairs performed under the provisions of this bulletin are reimbursable within warranty.

NHTSA ID: 11018221