OBD Guide
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U1134

Invalid Or Missing Data For Ignition Switch / Starter

U1134 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Ignition Switch / Starter. Common causes: ignition switch malfunction, open or short circuit in the circuit. Estimated repair cost: $17–89.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Problems starting the engine
  • Check Engine Light Is On
  • Intermittent operation of electrical equipment
  • Engine stalls after starting
  • No response to turning the ignition key

Causes

  • Ignition switch malfunction
  • Open or short circuit in the circuit
  • Starter relay problems
  • Control unit malfunction
  • Poor contact in wiring connectors

How to Fix

  1. Check the condition of the ignition switch
  2. Diagnose the ignition and starter circuit
  3. Check starter relay and fuses
  4. Scan all modules for errors
  5. Check wiring connections and connectors

Related codes

U1133U1135U1136

FAQ

What does the U1134 code mean?

U1134 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Ignition Switch / Starter

What causes a U1134 error code?

The most common causes of U1134 include: Ignition switch malfunction; Open or short circuit in the circuit; Starter relay problems; Control unit malfunction.

How do I fix a U1134 diagnostic trouble code?

To fix U1134: Check the condition of the ignition switch. Diagnose the ignition and starter circuit. Check starter relay and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1134?

Limited driving only, diagnose soon

How much does it cost to fix U1134?

The estimated repair cost for U1134 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat