OBD Guide
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P140D

Exhaust Gas Recirculation Motor Control Circuit 2 Low Voltage

P140D is an OBD-II diagnostic trouble code meaning: Exhaust Gas Recirculation Motor Control Circuit 2 Low Voltage. Common causes: egr valve motor malfunction, damaged wiring or corroded connectors. Estimated repair cost: $17–89.

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

Symptoms

  • Check Engine light is on
  • Reduced engine power
  • Unstable operation at idle
  • Increased fuel consumption
  • EGR system malfunctions

Causes

  • EGR valve motor malfunction
  • Damaged wiring or corroded connectors
  • Blown fuse
  • EGR relay malfunction
  • Problems with the engine control unit

How to Fix

  1. Checking the condition of the wiring and connectors of the EGR control circuit
  2. Checking fuses and relays of the EGR system
  3. EGR Valve Engine Testing
  4. Checking the output signals of the control unit
  5. Replacing faulty components

Related codes

P140EP140FP140C

FAQ

What does the P140D code mean?

P140D is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Recirculation Motor Control Circuit 2 Low Voltage

What causes a P140D error code?

The most common causes of P140D include: EGR valve motor malfunction; Damaged wiring or corroded connectors; Blown fuse; EGR relay malfunction.

How do I fix a P140D diagnostic trouble code?

To fix P140D: Checking the condition of the wiring and connectors of the EGR control circuit. Checking fuses and relays of the EGR system. EGR Valve Engine Testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P140D?

Yes, but get it checked soon

How much does it cost to fix P140D?

The estimated repair cost for P140D is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat