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P1388 Jeep Code - ASD or CNG Relay Control Circuit

- Code Popularity: 29,649 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1388 Jeep?

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 ASD Relay
  • Faulty CNG Relay
  • ASD or CNG Relay harness is open or shorted
  • ASD or CNG Relay circuit poor electrical connection
  • ASD or CNG Relay poor ground or supply voltage condition
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How to Fix the DTC P1388 Jeep?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1388 Jeep 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.

When is the Code Detected?

ECM commanded on the ASD or CNG relay and detected an open or shorted condition

What are Code Possible Symptoms?

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

Code P1388 Jeep Description

ASD or CNG Relay Control Circuit is the generic description for the P1388 Jeep code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information about the P1388 Jeep OBDII code.

Still have questions? Please post your question on our Comments Section below for more information.

OBDII Code P1388 Jeep - ASD or CNG Relay Control Circuit - AutoCodes.com
P1388 Jeep Code - ASD or CNG Relay Control Circuit

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Code P1388 Jeep comments

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