2023-2024 Jeep Wrangler AC Inoperative TSB S2424000005

Symptoms

Owners of 2023-2024 Jeep Wrangler vehicles may experience an AC Inoperative condition. This means the air conditioning system either fails to operate entirely or functions intermittently, leading to a lack of cooling in the cabin.

Fault Codes / DTCs

When diagnosing the Jeep Wrangler AC Inoperative issue, technicians may find specific Diagnostic Trouble Codes (DTCs) stored in the vehicle's system. These codes indicate potential electrical problems within the HVAC system:

• B1058: "Recirculation door Control-Circuit Short to Ground or Open"
• B11C2: "Front Mode Door 1 Control-Circuit Open"

Diagnosis / Trigger Conditions

To diagnose the Jeep Wrangler AC Inoperative condition, technicians should begin by inspecting the HVAC Module Connector C1, specifically connector D3828. It is crucial to ensure this connector is fully seated and that its locking tab is securely latched. A loose or improperly latched connector can disrupt electrical signals, leading to the AC malfunction.

If the connector appears properly seated and latched, further investigation is required. The technician should carefully remove the connector and examine pin 2 A231. This pin needs to be checked to ensure it has not been pushed out of its correct position and inadvertently locked into place, which would prevent proper electrical contact.

Repair Procedure Summary

The recommended repair for the Jeep Wrangler AC Inoperative condition, as outlined in manufacturer communication S2424000005, focuses on the HVAC Module Connector C1 D3828. The procedure involves two main steps:

1. Inspect Connector Seating: Verify that the HVAC Module Connector C1 D3828 is completely seated and that its locking tab is fully engaged. If it is not, reseat it firmly until the tab locks.
2. Inspect Pin A231: If the connector is already seated and latched, it should be carefully removed. Technicians must then inspect pin 2 A231 within the connector to confirm it is not pushed out or improperly locked. If the pin is found to be displaced, it should be correctly reseated to restore proper electrical connection.

Important Warnings

This document, identified as manufacturer communication S2424000005, serves as a record of past experiences and does not authorize warranty repairs. It does not provide definitive conclusions about what might be wrong with a specific vehicle. Instead, it compiles previous cases related to the described symptom or condition. Technicians are considered the experts and are responsible for determining the appropriate course of action for diagnosis and repair.

Owner Action

If you are experiencing an AC Inoperative condition in your 2023-2024 Jeep Wrangler, especially if accompanied by diagnostic trouble codes B1058 or B11C2, it is advisable to have your vehicle inspected by a qualified service technician. They can perform the necessary checks on the HVAC Module Connector C1 D3828 and pin 2 A231 as described in manufacturer communication S2424000005 to accurately diagnose and resolve the issue.

Source: NHTSA Manufacturer Communication S2424000005, ID 11006702.