The P2402 fault code in automobiles indicates a problem with the Canister Pump Module. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light.

The cause of this issue could be a faulty Canister Pump Module, an open or shorted Canister Pump Module harness, a poor electrical connection in the Canister Pump Module circuit, or a faulty Engine Control Module (ECM).

The importance of repairing this issue lies in the fact that it can lead to increased emissions and decreased fuel efficiency. The repair difficulty is moderate, with a repair time of 1.0 hour. To fix the issue, one should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the p2402 fault code.

Here are the symptoms to look out for:

  • The P2402 fault code in an automobile can cause the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON, issues with the EVAP system, problems with the fuel tank pressure sensor, issues with the fuel cap, fuel leaks, and decreased fuel efficiency.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure optimal performance.

P2402 fault code can be caused by a faulty canister pump module, open or shorted harness, poor electrical connection, or a faulty engine control module.

  • The automobile fault code P2402 can be caused by a faulty Canister Pump Module.
  • It can also be caused by an open or shorted Canister Pump Module harness.
  • Another cause can be a poor electrical connection in the Canister Pump Module circuit.
  • Lastly, a faulty Engine Control Module (ECM) can also trigger the P2402 fault code.

To fix the p2402 automobile fault code, check the possible causes and inspect the related wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code P2402, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code P2402 indicates a problem with the EVAP system. The diagnosis and fixing cost of this fault code depend on the estimated repair time, which is 1.0 hour.

Most auto repair shops charge between $75 and $150 per hour for their services.

Therefore, the total cost of diagnosis and fixing can range from $75 to $150.

Other factors that may influence the cost include the severity of the problem, the type of vehicle, and the location of the repair shop.

The P2402 code is related to the Evaporative Emission (EVAP) system. It indicates that the leak detection pump is stuck ON. The Engine Control Module (ECM) monitors the EVAP pressure for leaks and actuator malfunctions.

The leak detection pump creates negative pressure in the EVAP system. If the EVAP pressure is not between 97 to 100 kPa(abs) within a minute, the ECM interprets this as a malfunction.

The ECM illuminates the MIL and stores a Diagnostic Trouble Code (DTC) if this malfunction is detected in consecutive drive cycles.

The Canister Pump Module contains the Canister Pressure Sensor, the Leak Detection Pump, and the Vent Valve.

What are the possible causes of the P2402 automobile fault code?

If you’re experiencing the P2402 fault code, your engine light may be on. This could be due to a faulty Canister Pump Module, an open or shorted Canister Pump Module harness, a poor electrical connection in the Canister Pump Module circuit, or a faulty Engine Control Module (ECM). To fix the issue, check the possible causes listed above and visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

How can one visually inspect the related wiring harness and connectors to fix the P2402 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P2402 fault code, there are a few possible causes to consider. These include a faulty Canister Pump Module, an open or shorted Canister Pump Module harness, a poor electrical connection in the Canister Pump Module circuit, or a faulty Engine Control Module (ECM). To fix the issue, start by visually inspecting the related wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

Is a faulty Engine Control Module (ECM) a common cause of the P2402 fault code?

While a faulty Engine Control Module (ECM) is listed as a possible cause of the P2402 fault code, it is not a common cause. The more common causes include a faulty Canister Pump Module, an open or shorted Canister Pump Module harness, or a poor electrical connection in the Canister Pump Module circuit. To fix the issue, it is recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

p2402 error fault code explained

If your engine light is on and showing the P2402 code, it could be due to a faulty Canister Pump Module, open or shorted harness, poor electrical connection, or a faulty Engine Control Module.

Visually inspect the wiring harness and connectors for damage and check for broken, bent, pushed out, or corroded connector pins.

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