P140D Chevrolet Code - Exhaust Gas Recirculation Motor Control Circuit 2 Low Voltage
Quick Answer
The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation Motor. Common causes include Faulty Exhaust Gas Recirculation Motor, Exhaust Gas Recirculation Motor harness is open or shorted, Exhaust Gas Recirculation Motor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P140D Chevrolet indicates Exhaust Gas Recirculation Motor Control Circuit 2 Low Voltage.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation Motor, Exhaust Gas Recirculation Motor harness is open or shorted, Exhaust Gas Recirculation Motor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P140D Chevrolet Description
What are the Possible Causes of the DTC P140D Chevrolet?
- Faulty Exhaust Gas Recirculation Motor
- Exhaust Gas Recirculation Motor harness is open or shorted
- Exhaust Gas Recirculation Motor circuit poor electrical connection
How to Fix the DTC P140D Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P140D Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P140D Chevrolet Code
1. What are common symptoms of OBDII code P140D in a Chevrolet related to the Exhaust Gas Recirculation (EGR) motor control circuit 2 low voltage issue?
- Common symptoms include engine hesitation, rough idling, decreased fuel efficiency, and potential stalling.
2. What are the possible causes of OBDII code P140D in a Chevrolet indicating low voltage in the EGR motor control circuit 2?
- Potential causes include a faulty EGR motor, damaged wiring or connectors in the circuit, a defective EGR valve, or issues with the EGR control module.
3. How can I diagnose the source of the low voltage issue in the EGR motor control circuit 2 triggering OBDII code P140D on a Chevrolet?
- Use a multimeter to test the voltage at different points in the circuit, inspect the wiring and connectors for damage, and perform a thorough visual inspection of the EGR components.
4. Can a dirty or clogged EGR valve contribute to the occurrence of OBDII code P140D in a Chevrolet due to low voltage in the EGR motor control circuit 2?
- Yes, a dirty or clogged EGR valve can disrupt the functioning of the EGR system, leading to voltage irregularities and triggering the P140D code.
5. What are some possible repair tips for addressing OBDII code P140D on a Chevrolet related to low voltage in the EGR motor control circuit 2?
- Clean or replace the EGR valve, repair any damaged wiring or connectors, reset the fault codes after repairs, and perform a thorough test drive to verify the issue is resolved.
6. Is it safe to continue driving a Chevrolet with an active OBDII code P140D indicating low voltage in the EGR motor control circuit 2?
- It is recommended to address the issue promptly to prevent potential engine performance issues or further damage to the EGR system. Continued driving with the code present may lead to worsened symptoms.
7. Can a malfunctioning EGR control module cause the EGR motor control circuit 2 to experience low voltage and trigger OBDII code P140D in a Chevrolet?
- Yes, a faulty EGR control module can disrupt the voltage supply to the EGR motor, leading to the code P140D being stored in the vehicle's computer system.
8. Are there any specific EGR system maintenance practices that can help prevent the recurrence of OBDII code P140D in a Chevrolet?
- Regularly cleaning the EGR valve, inspecting the wiring for signs of wear, and ensuring proper electrical connections can help maintain the health of the EGR system and prevent issues like low voltage in circuit 2.
9. How critical is it to address OBDII code P140D related to low voltage in the EGR motor control circuit 2 on a Chevrolet promptly?
- Addressing the issue promptly is important to prevent potential engine performance issues, decreased fuel efficiency, and emissions problems associated with a malfunctioning EGR system.
10. Can resetting the fault codes using an OBDII scanner temporarily clear OBDII code P140D in a Chevrolet, or is it necessary to diagnose and repair the underlying issue?
- While resetting the fault codes may temporarily clear the code, it is crucial to diagnose and repair the root cause of the low voltage in the EGR motor control circuit 2 to prevent the code from reoccurring.
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