P0676 Cylinder 6 Glow Plug Circuit Fault

OBD2 Code: P0676

Description: Cylinder 6 Glow Plug Circuit Fault

Definition: This code indicates that there is a problem with the glow plug circuit in cylinder number 6. The issue could be due to a malfunctioning glow plug, wiring issues, or problems with the control module responsible for the glow plug operation.

p0676 – Cylinder 6 Glow Plug Circuit Fault

Typical Severity: Moderate

Common Causes

p0676 – Cylinder 6 Glow Plug Circuit Fault

Common causes:

• Faulty glow plug in cylinder 6
• Wiring issues in the glow plug circuit for cylinder 6
• Loose or poor electrical connection related to the glow plug in cylinder 6
• Faulty glow plug control module
• Issues with the powertrain control module (PCM) related to the glow plug circuit in cylinder 6

 

Common Misdiagnosis

OBD2 Code: P0676

Description: Cylinder 6 Glow Plug Circuit Fault

Common Misdiagnosis: Replacing the glow plug without checking the wiring or control module.

 

Common Diagnostic Steps

OBD2 Code: P0676

Description: Cylinder 6 Glow Plug Circuit Fault

• Check the glow plug for cylinder 6 for damage or wear.
• Inspect the wiring and connectors to the glow plug for corrosion, damage, or disconnection.
• Test the resistance of the glow plug using a multimeter to ensure it is within specifications.
• Verify that there is power reaching the glow plug when activated by checking voltage at the connector.
• Examine the glow plug control module for faults or malfunctions.
• Clear any stored codes and perform a test drive to see if the code returns after repairs are made.