OBD Guide
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U1407

Implausible Engine Torque Request Signal Received

U1407 is an OBD-II diagnostic trouble code meaning: Implausible Engine Torque Request Signal Received. Common causes: problems with the can bus, engine control module (ecm) malfunction. Estimated repair cost: $17–89.

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

Symptoms

  • Reduced engine power
  • Unstable engine operation
  • Check Engine Light Illuminates
  • Problems with gear shifting (on automatic)
  • Engine speed limit

Causes

  • Problems with the CAN bus
  • Engine control module (ECM) malfunction
  • Problems with the ABS module or transmission
  • Damage to wiring between modules
  • Software errors in modules

How to Fix

  1. Check CAN bus connections
  2. Scan all modules for errors
  3. Check the integrity of the wiring between the modules
  4. Update module software
  5. Check the operation of the engine control module

Related codes

U1406U1408U1409

FAQ

What does the U1407 code mean?

U1407 is an OBD-II diagnostic trouble code that indicates: Implausible Engine Torque Request Signal Received

What causes a U1407 error code?

The most common causes of U1407 include: Problems with the CAN bus; Engine control module (ECM) malfunction; Problems with the ABS module or transmission; Damage to wiring between modules.

How do I fix a U1407 diagnostic trouble code?

To fix U1407: Check CAN bus connections. Scan all modules for errors. Check the integrity of the wiring between the modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1407?

Yes, but get it checked soon

How much does it cost to fix U1407?

The estimated repair cost for U1407 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat