OBD Guide

P1687

No Cluster Bus Message

P1687 is an OBD-II diagnostic trouble code meaning: No Cluster Bus Message. Common causes: broken or damaged can bus wires, dashboard malfunction. Estimated repair cost: $33–278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–278 (est.)

Symptoms

  • Dashboard readings do not work or are displayed incorrectly
  • The Check Engine light comes on
  • Problems starting the engine
  • Loss of communication with other systems via CAN bus

Causes

  • Broken or damaged CAN bus wires
  • Dashboard malfunction
  • Problems with the engine control module
  • Short circuit in communication circuit
  • Bad contacts in connectors

How to Fix

  1. Check the integrity of the CAN bus wiring
  2. Scan all modules for other errors
  3. Check connections and connectors on the dashboard
  4. Test CAN bus signals with an oscilloscope
  5. Replace instrument panel or ECM if necessary

Related codes

Error P1687 by Vehicle Brand

FAQ

What does the P1687 code mean?

P1687 is an OBD-II diagnostic trouble code that indicates: No Cluster Bus Message

What causes a P1687 error code?

The most common causes of P1687 include: Broken or damaged CAN bus wires; Dashboard malfunction; Problems with the engine control module; Short circuit in communication circuit.

How do I fix a P1687 diagnostic trouble code?

To fix P1687: Check the integrity of the CAN bus wiring. Scan all modules for other errors. Check connections and connectors on the dashboard. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1687?

Yes, but get it checked soon

How much does it cost to fix P1687?

The estimated repair cost for P1687 is $33–278. Actual cost depends on your vehicle, location, and labor rates.

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