OBD Guide
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U1505

Implausible Message Data Length Received From FDCM

U1505 is an OBD-II diagnostic trouble code meaning: Implausible Message Data Length Received From FDCM. Common causes: fdcm module malfunction, problems with wiring or contacts. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of folding seats
  • Error message on the dashboard
  • Problems with other FDCM-related systems
  • Lost communication with FDCM module

Causes

  • FDCM module malfunction
  • Problems with wiring or contacts
  • Short circuit in the circuit
  • Software error in FDCM module

How to Fix

  1. Check the integrity of wiring and connections to the FDCM module
  2. Check the functionality of the FDCM module
  3. Update FDCM module software
  4. Replace FDCM module if necessary

Related codes

U1500U1501U1504

FAQ

What does the U1505 code mean?

U1505 is an OBD-II diagnostic trouble code that indicates: Implausible Message Data Length Received From FDCM

What causes a U1505 error code?

The most common causes of U1505 include: FDCM module malfunction; Problems with wiring or contacts; Short circuit in the circuit; Software error in FDCM module.

How do I fix a U1505 diagnostic trouble code?

To fix U1505: Check the integrity of wiring and connections to the FDCM module. Check the functionality of the FDCM module. Update FDCM module software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1505?

Yes, but get it checked soon

How much does it cost to fix U1505?

The estimated repair cost for U1505 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat