OBD Guide
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C1801

Motor Current Level/Position Conflict

C1801 is an OBD-II diagnostic trouble code meaning: Motor Current Level/Position Conflict. Common causes: engine position sensor malfunction, problems in the engine wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of servo-driven headlights
  • Check Engine Light Is On
  • Reduced effectiveness of the stabilization system

Causes

  • Engine position sensor malfunction
  • Problems in the engine wiring harness
  • Solenoid valve malfunction
  • Mechanical engine damage

How to Fix

  1. Check engine position sensor
  2. Inspect the wiring harness for damage
  3. Check the operation of the solenoid valve
  4. If necessary, replace faulty components

Related codes

C1800C1802P0340

FAQ

What does the C1801 code mean?

C1801 is an OBD-II diagnostic trouble code that indicates: Motor Current Level/Position Conflict

What causes a C1801 error code?

The most common causes of C1801 include: Engine position sensor malfunction; Problems in the engine wiring harness; Solenoid valve malfunction; Mechanical engine damage.

How do I fix a C1801 diagnostic trouble code?

To fix C1801: Check engine position sensor. Inspect the wiring harness for damage. Check the operation of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1801?

Limited driving only, diagnose soon

How much does it cost to fix C1801?

The estimated repair cost for C1801 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat