Engine-Codes - Jeep - P1388 Jeep

P1388 Jeep Code - ASD or CNG Relay Control Circuit

- Code Popularity: 29,650 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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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?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1388 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops 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)

What Does the P1388 Jeep Code Mean?

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 abouth the P1388 Jeep OBDII code.

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P1388 Jeep Code - ASD or CNG Relay Control Circuit

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