OBD Guide
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C1005

Status Lamp Failure BCM Signal Invalid

C1005 is an OBD-II diagnostic trouble code meaning: Status Lamp Failure BCM Signal Invalid. Common causes: open or short circuit in wiring harness, body control module (bcm) malfunction. Estimated repair cost: $33–167.

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

Symptoms

  • The warning light on the instrument panel is on or flashing
  • Incorrect operation of status indicators
  • No response from system indicators

Causes

  • Open or short circuit in wiring harness
  • Body Control Module (BCM) Malfunction
  • Circuit fuse problems
  • Oxidation or damage to contacts
  • BCM software error

How to Fix

  1. Check the condition of the BCM circuit fuses
  2. Visually inspect the wiring harness for damage.
  3. Check the quality of contacts in the BCM and instrument panel connectors
  4. Scan the BCM for additional errors
  5. If necessary, replace the BCM or restore continuity
  6. Reset the error and check for its reappearance

Related codes

U0001U0121B1000

FAQ

What does the C1005 code mean?

C1005 is an OBD-II diagnostic trouble code that indicates: Status Lamp Failure BCM Signal Invalid

What causes a C1005 error code?

The most common causes of C1005 include: Open or short circuit in wiring harness; Body Control Module (BCM) Malfunction; Circuit fuse problems; Oxidation or damage to contacts.

How do I fix a C1005 diagnostic trouble code?

To fix C1005: Check the condition of the BCM circuit fuses. Visually inspect the wiring harness for damage.. Check the quality of contacts in the BCM and instrument panel connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1005?

Limited driving only, diagnose soon

How much does it cost to fix C1005?

The estimated repair cost for C1005 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat