OBD Guide
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U1477

Implausible Paddle Shifter Data Received

U1477 is an OBD-II diagnostic trouble code meaning: Implausible Paddle Shifter Data Received. Common causes: faulty steering wheel shift paddles, wiring harness damage. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Manual gear shifting with steering wheel paddles does not work
  • Spontaneous gear shifting
  • Delays when shifting gears
  • Check Engine Light Is On
  • Activating emergency gearbox operation

Causes

  • Faulty steering wheel shift paddles
  • Wiring harness damage
  • Oxidation of contacts in connectors
  • Grounding problems
  • Computer malfunctions

How to Fix

  1. Check the condition of the steering wheel paddles
  2. Inspect connectors and wiring harness
  3. Check wiring integrity
  4. Test the operation of the ECU
  5. Replace faulty components

Related codes

U1478U1479U1480

FAQ

What does the U1477 code mean?

U1477 is an OBD-II diagnostic trouble code that indicates: Implausible Paddle Shifter Data Received

What causes a U1477 error code?

The most common causes of U1477 include: Faulty steering wheel shift paddles; Wiring harness damage; Oxidation of contacts in connectors; Grounding problems.

How do I fix a U1477 diagnostic trouble code?

To fix U1477: Check the condition of the steering wheel paddles. Inspect connectors and wiring harness. Check wiring integrity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1477?

Yes, but get it checked soon

How much does it cost to fix U1477?

The estimated repair cost for U1477 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat