DTClookup.com

Search DTC

P1676 – Honda DTC

Honda DTC P1676 – FPTDR Signal Line Failure

DTC P1676 meaning on Honda

DTC P1676 for Honda refers to a signal line failure related to the Fuel Pump Thermal Switch (FPTDR). This diagnostic trouble code indicates an issue with the communication signal between the Fuel Pump Thermal Switch and the Engine Control Module (ECM).

Honda DTC P1676 symptoms

Symptoms of DTC P1676 on a Honda may include:

  • Check Engine Light (MIL) illuminated
  • Engine stalling or hesitation
  • Difficulty starting the engine
  • Reduced engine performance

Honda DTC P1676 causes

Common causes of DTC P1676 on a Honda include:

  • Faulty Fuel Pump Thermal Switch
  • Wiring or connector issues in the signal line
  • Defective Engine Control Module (ECM)

Honda DTC P1676 seriousness

DTC P1676 should be addressed promptly as it can lead to engine performance issues and potential stalling, which may compromise vehicle safety and drivability.

How to diagnose DTC P1676 on Honda

To diagnose DTC P1676 on a Honda, follow these steps:

  1. Use a diagnostic scanner to retrieve the trouble codes stored in the ECM.
  2. Inspect the wiring and connectors related to the Fuel Pump Thermal Switch for any damage or corrosion.
  3. Test the Fuel Pump Thermal Switch for proper functionality.
  4. Check the ECM for any signs of malfunction.

How to fix DTC P1676 on Honda

To fix DTC P1676 on a Honda, consider the following:

  1. Repair or replace any damaged wiring or connectors in the signal line.
  2. Replace the Fuel Pump Thermal Switch if found to be faulty.
  3. If the ECM is determined to be defective, it may need to be replaced or reprogrammed.

How to erase DTC P1676 on Honda

To erase DTC P1676 on a Honda:

  1. Use a diagnostic scanner to clear the trouble codes stored in the ECM.
  2. After addressing the underlying issue causing the DTC, perform a test drive to ensure the code does not return.

Recommended tools for Honda diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Honda Diagnostic Trouble Codes

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.