AutoCodes – Dodge – U1113 Dodge

U1113 Dodge Code - Lost A/C Pressure Message

Quick Answer

The A/C Pressure Transducer signal is a direct input to the Totally Integrated Power Module (TIPM). Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module (TIPM) harness is open or shorted, Totally Integrated Power Module (TIPM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U1113 Dodge indicates Lost A/C Pressure Message.
Common causes: Common causes include Faulty Totally Integrated Power Module (TIPM), Totally Integrated Power Module (TIPM) harness is open or shorted, Totally Integrated Power Module (TIPM) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,310

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1113 Dodge Description

The A/C Pressure Transducer signal is a direct input to the Totally Integrated Power Module (TIPM). The TIPM busses the A/C pressure signal over the Controlled Area Network (CAN) bus the Powertrain Control Module (PCM). The Diagnostic Trouble Code (DTC) sets when the PCM doesn't receive the A/C Pressure signal over the CAN C bus from the Body Control Module (BCM). The circuit is continuously monitored. One Trip fault.

OBDII Code U1113 Dodge - Lost A/C Pressure Message - AutoCodes.com — U1113 Dodge Code - Lost A/C Pressure Message

What does this mean?

What are the Possible Causes of the DTC U1113 Dodge?

Faulty Totally Integrated Power Module (TIPM)
Totally Integrated Power Module (TIPM) harness is open or shorted
Totally Integrated Power Module (TIPM) circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1113 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1113 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U1113 Dodge Code

1. What does the OBDII code U1113 mean on a Dodge vehicle?

The U1113 code indicates a "Lost A/C Pressure Message," meaning the vehicle's communication system has failed to receive data from the A/C pressure sensor.

2. What are common symptoms of code U1113 in a Dodge?

Symptoms may include the air conditioning not working, intermittent cooling, the A/C blowing warm air, or a check engine or communication-related warning light.

3. What causes code U1113 to appear?

The code can be triggered by a faulty A/C pressure sensor, damaged wiring, a poor connection in the CAN bus communication system, or a malfunctioning control module.

4. Can a faulty A/C pressure sensor cause the U1113 code?

Yes, a defective or malfunctioning A/C pressure sensor is one of the most common causes of this code.

5. How do I diagnose the U1113 code on my Dodge?

Start by checking the A/C pressure sensor, inspecting its wiring and connections, and using a scan tool to verify the CAN bus communication between modules.

6. Can a blown fuse trigger the U1113 code?

Yes, a blown fuse related to the A/C system or communication modules could interrupt the signal and cause the U1113 code.

7. How do I fix the U1113 code on a Dodge?

Repairs may include replacing the A/C pressure sensor, repairing damaged wiring, checking module connections, or reprogramming/repairing the affected control modules.

8. Will clearing the U1113 code fix the issue permanently?

No, clearing the code may temporarily reset the system, but the underlying issue must be addressed to prevent the code from returning.

9. Can the U1113 code affect other vehicle systems?

Yes, since it involves CAN bus communication, it could potentially disrupt data sharing with other systems like climate control or engine management.

10. Should I drive my Dodge with the U1113 code active?

While it may not immediately affect drivability, itâ€™s best to address the issue promptly, especially if the A/C system or other modules are impacted.