Dodge DTC P1689 – No Communication Between ECM & Injection Pump Module
DTC P1689 meaning on Dodge
DTC P1689 on a Dodge indicates a communication issue between the Engine Control Module (ECM) and the Injection Pump Module. This code signifies that the ECM is not receiving the necessary data from the Injection Pump Module.
Dodge DTC P1689 symptoms
Symptoms of DTC P1689 on a Dodge may include:
- Check Engine Light illuminated
- Engine stalling or hesitation
- Loss of power
- Difficulty starting the engine
Dodge DTC P1689 causes
Common causes of DTC P1689 on a Dodge include:
- Faulty ECM
- Faulty Injection Pump Module
- Wiring or connection issues between the ECM and Injection Pump Module
Dodge DTC P1689 seriousness
DTC P1689 should be addressed promptly as it can lead to drivability issues and potential engine damage if left unresolved.
How to diagnose DTC P1689 on Dodge
To diagnose DTC P1689 on a Dodge, a mechanic can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connections between the ECM and Injection Pump Module
- Test the ECM and Injection Pump Module for proper functionality
How to fix DTC P1689 on Dodge
To fix DTC P1689 on a Dodge, the following steps can be taken:
- Repair or replace any damaged wiring or connectors
- Replace the faulty ECM or Injection Pump Module if necessary
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC P1689 on Dodge
To erase DTC P1689 on a Dodge, use a diagnostic scanner to clear the fault codes from the ECM’s memory. Once the codes are cleared, the Check Engine Light should turn off.
Recommended tools for Dodge diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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.