Engine-Codes - Generic - P1277

P1277 - Cylinder #7 High To Low Side Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

P1277 Possible Causes

  • Faulty Fuel Injector
  • Faulty Fuel Injector Interface Module
  • Fuel Injector harness is open or shorted
  • Fuel Injector circuit poor electrical connection

How do I fix code P1277

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's pins.

Cost of diagnosing the P1277 code

Labor: 1.0

The cost of diagnosing the P1277 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P1277 Meaning

A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit

P1277 More Information

Need more information on how to fix the P1277 code?
Get Access to Factory Service Manuals

Information for specific makes

Need more help?

Get the P1277 code diagnosed by a professional: Find a repair shop in your area