AutoCodes – Generic – U1175

U1175 Code - Lost Ignition Status Message

Quick Answer

The Electronic Pedestrian Protection Module (EPPM) receives the ignition status message over the CAN C bus from the Electronic Ignition System. Common causes include Faulty Electronic Ignition System (EIS), Electronic Ignition System harness is open or shorted, Electronic Ignition System 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: U1175 indicates Lost Ignition Status Message.
Common causes: Common causes include Faulty Electronic Ignition System (EIS), Electronic Ignition System harness is open or shorted, Electronic Ignition System 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 8,941

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U1175 Description

The Electronic Pedestrian Protection Module (EPPM) receives the ignition status message over the CAN C bus from the Electronic Ignition System. The Diagnostic Trouble Code (DTC) sets when the EPPM doesn't receive a vehicle ignition switch status signal from the Electronic Ignition System (EIS) over the Controller Area Network (CAN) C bus for 25 seconds to set the active code. The EPPM receives a vehicle speed signal for over one second to recover and change to a stored code. The Airbag Warning Lamp (AWL) on while faulted condition is active.

OBDII Code U1175 - Lost Ignition Status Message - AutoCodes.com — U1175 Code - Lost Ignition Status Message

What does this mean?

What are the Possible Causes of the DTC U1175?

Faulty Electronic Ignition System (EIS)
Electronic Ignition System harness is open or shorted
Electronic Ignition System circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1175?

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 U1175 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.

Need more information about the U1175 code?

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Information for Specific Makes

U1175 Chrysler — Lost Ignition Status Message
U1175 Dodge — Lost Ignition Status Message
U1175 Jeep — Lost Ignition Status Message
U1175 RAM — Lost Ignition Status Message

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.