P2402 Dodge Code - Evaporative Emission System Leak Detection Pump Control Circuit High
Quick Answer
5 hours after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in the EVAP (Evaporative Emission) system. Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module 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
- P2402 Dodge indicates Evaporative Emission System Leak Detection Pump Control Circuit High.
- Common causes
- Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module 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 P2402 Dodge Description
What are the Possible Causes of the DTC P2402 Dodge?
- Faulty Vacuum Pump Module
- Vacuum Pump Module harness is open or shorted
- Vacuum Pump Module circuit poor electrical connection.
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2402 Dodge?
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 P2402 Dodge 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 P2402 Dodge Code
What does the OBDII code P2402 mean on a Dodge vehicle?
1. The P2402 code indicates that the evaporative emission system's leak detection pump control circuit has a high voltage issue, which may affect the system's ability to detect fuel vapor leaks. 2.
What are the common symptoms of the P2402 code in a Dodge?
Symptoms may include an illuminated check engine light, a failed emissions test, and a possible fuel odor around the vehicle. 3.
What causes the P2402 code to appear on a Dodge?
Common causes include a faulty leak detection pump, damaged wiring or connectors in the circuit, a malfunctioning EVAP system control module, or electrical issues such as a short or open circuit. 4.
Can I drive my Dodge with the P2402 code?
Yes, you can drive with this code, but it is not recommended for an extended period as it may lead to increased emissions and potentially other system issues. 5.
How is the P2402 code diagnosed on a Dodge?
A mechanic will use a scan tool to confirm the code, inspect EVAP system wiring and connectors, check the leak detection pump, and perform voltage and continuity tests on the circuit. 6.
How do I fix the P2402 code on my Dodge?
Repairs may include replacing the leak detection pump, repairing or replacing damaged wiring or connectors, or addressing issues with the EVAP system control module. 7.
How much does it cost to fix the P2402 code on a Dodge?
Repair costs can range from $100 to $400, depending on whether the issue is with wiring, the leak detection pump, or other components. 8.
Can a loose gas cap cause the P2402 code on a Dodge?
A loose gas cap typically triggers a different EVAP-related code, but it’s worth ensuring the gas cap is tight and in good condition as part of the diagnostic process. 9.
Will clearing the P2402 code with a scan tool fix the issue?
Clearing the code will reset the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning. 10.
How can I prevent the P2402 code from occurring on my Dodge?
Regular maintenance of the EVAP system, inspecting wiring and connectors for damage, and addressing any check engine light promptly can help prevent this code.
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