Speed Signal Error

1. Enter the "Navigation Check" mode (Vehicle Sensors) (see NAVIGATION CHECK MODE  ).
2. While driving the vehicle, compare the "SPD" indicator to the reading on the speedometer. Check if these readings are almost equal.

   OK : The readings are almost equal. 

NG : REPLACE NAVIGATION ECU 

Fig 1: Identifying Vehicle Sensors Display Screen

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OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  DIAGNOSTIC TROUBLE CODE CHART