OBD Guide
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C1AB6

Blind Spot Monitor Master Module

C1AB6 is an OBD-II diagnostic trouble code meaning: Blind Spot Monitor Master Module. Common causes: wiring harness damage, malfunction of blind spot sensors. Estimated repair cost: $111–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Blind spot monitoring system does not work
  • False alarms
  • No indication on the instrument panel

Causes

  • Wiring harness damage
  • Malfunction of blind spot sensors
  • Module power problems
  • Internal module fault

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the power supply and ground of the module
  3. Test blind spot sensors
  4. Replace module if necessary

Related codes

C1AB7C1AB8

FAQ

What does the C1AB6 code mean?

C1AB6 is an OBD-II diagnostic trouble code that indicates: Blind Spot Monitor Master Module

What causes a C1AB6 error code?

The most common causes of C1AB6 include: Wiring harness damage; Malfunction of blind spot sensors; Module power problems; Internal module fault.

How do I fix a C1AB6 diagnostic trouble code?

To fix C1AB6: Check the integrity of the wiring harness. Check the power supply and ground of the module. Test blind spot sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1AB6?

Limited driving only, diagnose soon

How much does it cost to fix C1AB6?

The estimated repair cost for C1AB6 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat