Engine-Codes - Jeep - P1390 Jeep

P1390 Jeep Code - Timing Belt Skipped One Or More Teeth

- Code Popularity: 3,511 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 P1390 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.
  • Timing belt has jumped one or more teeth
  • Loose Camshaft or Crankshaft Position Sensor
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How to Fix the DTC P1390 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 P1390 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?

The Powertrain Control Module (PCM) has detected a misalignment between the cam sensor and crank sensor.

What are Code Possible Symptoms?

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

What Does the P1390 Jeep Code Mean?

With the engine running, the Powertrain Control Module (PCM) enables the Inhibit condition test every 44 ms and monitors for misalignment between the Camshaft Position (CMP) and Crankshaft Position (CKP) sensors. If the CMP signal is offset from the CKP sensor one tooth or more, this trouble code is set. With a cold engine or if the start-to-run transfer is too long Whenever engine speed is outside of its given windows Whenever there is a large change in MAP sensor input

P1390 Jeep Code - Timing Belt Skipped One Or More Teeth

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