OBD Guide
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C1862

Battery Contactor Circuit Failure

C1862 is an OBD-II diagnostic trouble code meaning: Battery Contactor Circuit Failure. Common causes: open or damaged contactor circuit, contactor relay fault. Estimated repair cost: $22–167.

Severity
🚨 Critical
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–167 (est.)

Symptoms

  • Check engine light is on
  • Problems starting the car
  • Reduced performance of the hybrid system

Causes

  • Open or damaged contactor circuit
  • Contactor relay fault
  • Wiring harness damage
  • Voltage problems in the high voltage circuit

How to Fix

  1. Check the continuity of the contactor circuit
  2. Check the contactor relay for functionality
  3. Inspect the wiring harness for damage
  4. Check the high voltage circuit for leaks
  5. If necessary, replace faulty components

Related codes

C1861C1863P0A80

FAQ

What does the C1862 code mean?

C1862 is an OBD-II diagnostic trouble code that indicates: Battery Contactor Circuit Failure

What causes a C1862 error code?

The most common causes of C1862 include: Open or damaged contactor circuit; Contactor relay fault; Wiring harness damage; Voltage problems in the high voltage circuit.

How do I fix a C1862 diagnostic trouble code?

To fix C1862: Check the continuity of the contactor circuit. Check the contactor relay for functionality. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1862?

Yes, but get it checked soon

How much does it cost to fix C1862?

The estimated repair cost for C1862 is $22–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat