LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 2021 >> Pilot Elite >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio & Visual System - Service & Testing >> General Information >> Telematics System Self-Diagnostic Function (2019 2020 2021) >> SMS Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

SMS Function Check

NOTE:  Make sure the contract procedure about telematics is done.

The SMS Function Check tests the connection between the vehicle and the telematics server. It checks to make sure that the telematics control unit can send and receive SMS messages with the telematics server through the network.

1. Turn the vehicle to the ON mode.

2. Press and hold the HOME button, DISPLAY MODE (

GHH170792Courtesy of HONDA, U.S.A., INC.

) button, and the AUDIO POWER (

GHH168880Courtesy of HONDA, U.S.A., INC.

) button until the Dealer Diagnostics menu screen is displayed.

3. When the Dealer Diagnostics menu appears, select the DETAIL INFORMATION and SETTING (A).

Displaying Dealer Diagnostics Menu Screen 

GHH304005Courtesy of HONDA, U.S.A., INC.

4. Select the UNIT CHECK (A) from the DETAIL INFORMATION and SETTING menu.

GHH304006Courtesy of HONDA, U.S.A., INC.

5. Select the TCU DIAG from the UNIT CHECK menu.

6. Select the TCU Test (A) from the TCU DIAG screen.

GHH304007Courtesy of HONDA, U.S.A., INC.

7. If you perform the TCU Test, the telematics control unit transmits a function check message to the telematics service provider to check a network connection. If the message was sent to the telematics service provider successfully, the telematics service provider sends reply (function check response) to the telematics control unit.

8. To end the System Diagnostic Mode, select the RETURN until the general screen is displayed, or turn the vehicle to the OFF (LOCK) mode.