OBD Guide
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C2777

Sensor Cluster Bus Failure

C2777 is an OBD-II diagnostic trouble code meaning: Sensor Cluster Bus Failure. Common causes: broken or corroded wiring harness, malfunction of one of the sensors on the tire. Estimated repair cost: $22–111.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–111 (est.)

Symptoms

  • Check Engine light on
  • Violation of security systems
  • Failures in sensor readings
  • Loss of airbag control

Causes

  • Broken or corroded wiring harness
  • Malfunction of one of the sensors on the tire
  • ECU software error
  • Damage to the sensor connector
  • Short circuit in the circuit

How to Fix

  1. Bus diagnostics using an oscilloscope
  2. Checking the integrity of Italians
  3. Testing sensors one at a time
  4. ECU firmware update
  5. Replacing faulty components

Related codes

B0100C2778B0101

FAQ

What does the C2777 code mean?

C2777 is an OBD-II diagnostic trouble code that indicates: Sensor Cluster Bus Failure

What causes a C2777 error code?

The most common causes of C2777 include: Broken or corroded wiring harness; Malfunction of one of the sensors on the tire; ECU software error; Damage to the sensor connector.

How do I fix a C2777 diagnostic trouble code?

To fix C2777: Bus diagnostics using an oscilloscope. Checking the integrity of Italians. Testing sensors one at a time. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C2777?

Do not drive — repair immediately

How much does it cost to fix C2777?

The estimated repair cost for C2777 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat