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AutoCodes - Generic - P1402

P1402 Code - EGR Function Open

- Code Popularity: 53,748 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1402?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty EGR temperature sensor
  • EGR volume control valve harness is open or shorted
  • EGR volume control valve circuit poor electrical connection
  • EGR volume control valve leaking or stuck open
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How to Fix the DTC P1402?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

Start by cleaning the EGR valve, if the code persists it may be necessary to replaced the EGR Valve.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1402 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1402 Description

This system controls flow rate of Exhaust Gas Recirculation (EGR) led from exhaust manifold to intake manifold. The opening of the EGR by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor moves the valve in steps corresponding to the Engine Control Module (ECM) output pulses. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. The EGR volume control valve remains closed under the following conditions.
- Engine stopped
- Engine starting
- Engine idling
- Low engine coolant temperature
- Excessively high engine coolant temperature
- High engine speed
- Wide open throttle
- Low battery voltage
OBDII Code P1402 - EGR Function Open - AutoCodes.com
P1402 Code - EGR Function Open

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Code P1402 comments

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