OBD Guide
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C1149

Switch-Over Solenoid Valve Line HSV

C1149 is an OBD-II diagnostic trouble code meaning: Switch-Over Solenoid Valve Line HSV. Common causes: open or short circuit in wiring harness, hsv solenoid valve malfunction. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Incorrect gear shifting (for automatic transmission)
  • Reduced braking efficiency (for ABS/ESP systems)
  • The Check Engine light comes on
  • The vehicle goes into emergency mode

Causes

  • Open or short circuit in wiring harness
  • HSV solenoid valve malfunction
  • Connector problems or contact corrosion
  • Control unit malfunction

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Measure the resistance of the solenoid valve
  3. Check the supply voltage of the circuit
  4. If necessary, replace the valve or repair the wiring harness
  5. Reset the error and check if it returns

Related codes

C1148C1150P0751P0756

FAQ

What does the C1149 code mean?

C1149 is an OBD-II diagnostic trouble code that indicates: Switch-Over Solenoid Valve Line HSV

What causes a C1149 error code?

The most common causes of C1149 include: Open or short circuit in wiring harness; HSV solenoid valve malfunction; Connector problems or contact corrosion; Control unit malfunction.

How do I fix a C1149 diagnostic trouble code?

To fix C1149: Check the integrity of the wiring harness and connectors. Measure the resistance of the solenoid valve. Check the supply voltage of the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1149?

Limited driving only, diagnose soon

How much does it cost to fix C1149?

The estimated repair cost for C1149 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat