OBD Guide
ENFRDEESPT

C1147

Switch-Over Solenoid Valve Line USV

C1147 is an OBD-II diagnostic trouble code meaning: Switch-Over Solenoid Valve Line USV. Common causes: open or short circuit in valve circuit, solenoid valve malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Switching to emergency mode
  • Deterioration of vehicle dynamics
  • Unstable engine operation
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in valve circuit
  • Solenoid valve malfunction
  • Wiring Harness Problems
  • Control unit malfunction

How to Fix

  1. Check valve circuit integrity
  2. Measure valve resistance
  3. Check control signals from the computer
  4. Replace faulty valve if necessary
  5. Check and repair wiring harness

Related codes

P0700P0750P0755

FAQ

What does the C1147 code mean?

C1147 is an OBD-II diagnostic trouble code that indicates: Switch-Over Solenoid Valve Line USV

What causes a C1147 error code?

The most common causes of C1147 include: Open or short circuit in valve circuit; Solenoid valve malfunction; Wiring Harness Problems; Control unit malfunction.

How do I fix a C1147 diagnostic trouble code?

To fix C1147: Check valve circuit integrity. Measure valve resistance. Check control signals from the computer. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1147?

Limited driving only, diagnose soon

How much does it cost to fix C1147?

The estimated repair cost for C1147 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat