Alternator Performance Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 Honda Fit, 2019 Honda Fit, 2018 Honda Fit, 2017 Honda Fit, and 2016 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools Required

Honda 12 Volt Battery Diagnostic Station (GR8): Model Number MTRGR81100P*

*: Available through the Honda Tool and Equipment Program 888-424-6857

PGM-FI system DTC check:

- 1. Connect the HDS to the DLC - Refer to: How to Troubleshoot the Fuel and Emissions Systems or How to Troubleshoot the CVT System(CVT) .

- 2. Turn the vehicle to the ON mode.

- 3. Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC Circuit Troubleshooting .

- 4. Check for PGM-FI system DTCs with the HDS.

DTC Description	Confirmed DTC	Pending DTC	Freeze Frame

Are any DTCs indicated?

YES

Go to the indicated DTC's troubleshooting.

Go to step 2.

Alternator Test:
- 1. Jump the SCS line with the HDS.

SCS Short

- 2. Test the alternator with the Honda 12 volt battery diagnostic station (GR8).

NOTE: For setup, customization, and other available features, refer to the GR8 user's manual.

Is the result OK?

YES

Intermittent failure, the system is OK at this time.

NO

Replace the alternator or repair the alternator .