Engine-Codes - Jeep - P1261 Jeep

P1261 Jeep Code - Glow Plug #1 Control Circuit Low

- Code Popularity: 7,499 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 P1261 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 Glow Plug #1
  • Glow Plug #1 harness is open or shorted
  • Glow Plug #1 circuit poor electrical connection
  • Faulty Glow Plug Controller

Code Tech Notes

Good information on how to inspect, remove and replaced the glow plugs: Jeep Glow Plug Inspection, Remove and Replace

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How to Fix the DTC P1261 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.

Search for P1261 Jeep Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1261 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.

What are Code Possible Symptoms?

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

What Does the P1261 Jeep Code Mean?

The glow plugs are used to preheat the combustion chambers in order to achieve the ignition temperature required for the fuel-air mixture.
The glow plug consists of a housing with a female thread and an interference-fit rod. The heating element is integrated into the glow rod. It consists of a heating winding and a control winding connected in series.
When the glow plug system is switched "ON", a current of about 30 ampere flows to each glow plug. The heating winding heats the glow plug. The control winding increases its resistance as the temperature rises and limits the current to approximately 15-25 ampere. The glow plug is protected this way from overloads.

P1261 Jeep Code - Glow Plug #1 Control Circuit Low

Need more Information on the Code?

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