Pinpoint Test AS: The In-Dash Computer Is Inoperative

Ford Work Solutions(TM)


Pinpoint Test AS: The In-Dash Computer Is Inoperative

Refer to Wiring Diagram Set 141 for schematic and connector information. Diagrams By Number

Normal Operation

The in-dash computer receives power and ground from the vehicle harness. It also monitors information over the Medium Speed Controller Area Network (MS-CAN), and without this information, it does not power-up.

This pinpoint test is intended to diagnose the following:

- Fuse
- Wiring, terminals or connectors
- In-dash computer



PINPOINT TEST AS: THE IN-DASH COMPUTER IS INOPERATIVE

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.

AS1-AS3:

AS3-AS4: