OBD Guide
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U1175

Lost Ignition Status Message

U1175 is an OBD-II diagnostic trouble code meaning: Lost Ignition Status Message. Common causes: open or short circuit in the communication circuit, ignition module malfunction. Estimated repair cost: $28–94.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–94 (est.)

Symptoms

  • Difficulty starting the engine
  • Unstable engine operation
  • Power Loss
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in the communication circuit
  • Ignition module malfunction
  • Problems with the engine control unit
  • Oxidation or damage to connectors
  • Problems with power supply to the ignition module

How to Fix

  1. Diagnose the ignition module communication circuit
  2. Check connectors and wiring integrity
  3. Test the ignition module
  4. Check the power supply to the ignition module
  5. If necessary, replace the ignition module

Related codes

U1174U1176U1177

FAQ

What does the U1175 code mean?

U1175 is an OBD-II diagnostic trouble code that indicates: Lost Ignition Status Message

What causes a U1175 error code?

The most common causes of U1175 include: Open or short circuit in the communication circuit; Ignition module malfunction; Problems with the engine control unit; Oxidation or damage to connectors.

How do I fix a U1175 diagnostic trouble code?

To fix U1175: Diagnose the ignition module communication circuit. Check connectors and wiring integrity. Test the ignition module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1175?

Limited driving only, diagnose soon

How much does it cost to fix U1175?

The estimated repair cost for U1175 is $28–94. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat