HUD_UART Circuit Inspection

Test Procedure 

• Preparation
• • -

    Head up display connector (20P): disconnected

  • -

    Gauge control module connector B (12P): disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

(Disconnected)Head up display connector (20P) female terminals

(Disconnected)Gauge control module connector B (12P) female terminals

IG Mode

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

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

Normal Conditions

HUD_UART open wire inspection 

OFF

There is less than 1 Ohm 

Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.

HUD_UART shorted to ground Inspection 

OFF

There is more than 1 MOhm 

Results 

• If abnormal, there is a problem in the circuit.