OBD Guide
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C1045

Left-Front Inlet Solenoid Circuit Failure

C1045 is an OBD-II diagnostic trouble code meaning: Left-Front Inlet Solenoid Circuit Failure. Common causes: open or short circuit in wiring harness, 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

  • ABS/ESP indicator is on
  • Disabling the ABS system
  • Uneven braking
  • Brake pedal rattling when ABS is running

Causes

  • Open or short circuit in wiring harness
  • Solenoid valve malfunction
  • Problems with the ABS module
  • Oxidation of contacts
  • Damage to connectors

How to Fix

  1. Check the integrity of the wiring harness to the solenoid
  2. Check solenoid resistance (usually 5-15 ohms)
  3. Inspect connectors for corrosion
  4. Check power and ground in the circuit
  5. If necessary, replace the solenoid or repair the circuit

Related codes

C1040C1041C1046C1050

FAQ

What does the C1045 code mean?

C1045 is an OBD-II diagnostic trouble code that indicates: Left-Front Inlet Solenoid Circuit Failure

What causes a C1045 error code?

The most common causes of C1045 include: Open or short circuit in wiring harness; Solenoid valve malfunction; Problems with the ABS module; Oxidation of contacts.

How do I fix a C1045 diagnostic trouble code?

To fix C1045: Check the integrity of the wiring harness to the solenoid. Check solenoid resistance (usually 5-15 ohms). Inspect connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1045?

Limited driving only, diagnose soon

How much does it cost to fix C1045?

The estimated repair cost for C1045 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat