LVDS And USB Cable Tester (22-7076)

WARNING: This page is about the Explorer Base, 2.0L Eng VIN 9, which is a different variant/trim than selected.

Publication date: 2022-05-20
Reference number: 22-7076
Supersedes refnos: 19-7023

LVDS AND USB CABLE TESTER

TECHNICAL SERVICE BULLETIN

Reference Number(s): 22-7076, Date of Issue: May 20, 2022

FORD:

All Models

Superceded Bulletin(s): 19-7023, Date of Issue: May 20, 2022

NOTE: This bulletin supersedes 19-7023.

SUMMARY

This article supersedes GSB 19-7023 to update the vehicle model years affected.

This article is intended to provide information on the low voltage digital signaling (LVDS) and universal serial bus (USB) cable tester.

SERVICE INFORMATION

Main cable tester switch box

The Cable Tester Switch Box NUD420-912 allows for the ability to connect into today's smaller electrical connections, such as USB and LVDS, in order to help identify open circuits, shorts, and intermittent connections. Simply attach the appropriate adapter to the test box, plug in the suspect vehicle harness, and turn the dial. Connections between the two ends of the vehicle harness will illuminate the LED for the connected line.

The USB adapter kit NUD420-912-USB can be used in conjunction with the cable tester switch box to test USB cables. The following information can be used to set up the cable tester switch box and determine which test harness to connect to connector 1 and connector 2.

Tester setup For testing LVDS cable

For Testing LVDS Harness

Use test harness NUD420-912-HSDLVDS-FO	Use test harness NUD420-912-HSDLVDS-FZ
Connector 1 signal return	Connector 2 switch output
Switch position	LED illuminated
Position - 1	LED = B illuminated
Position - 2	LED = A illuminated
Position - 3	LED = D illuminated
Position - 4	LED = C illuminated
Position - 5	LED = E illuminated
Position - 6 through 12	No LED illuminated

Tester setup for testing USB Mini B male to USB Mini B male cable

For Testing USB Mini B Male To USB Mini B Male Harness

Use test harness NUD420-912-USBminiB-F	Use test harness NUD420-912-USBminiB-F
Connector 1 signal return	Connector 2 switch output
Switch position	LED illuminated
Position - 1	LED = A illuminated
Position - 2	LED = B illuminated
Position - 3	LED = C illuminated
Position - 4	No LED illuminated
Position - 5	LED = E illuminated
Position - 6	LED = F illuminated
Position - 7 through 12	No LED illuminated

Tester setup for testing USB A female to USB Mini B male cable

For Testing USB A Female To USB Mini B Male Or Female Harness

Use test harness NUD420-912-USBA-M	Use test harness NUD420-912-USBminiB-F Or NUD420-912-USBminiB-M
Connector 1 signal return	Connector 2 switch output
Switch position	LED illuminated
Position - 1	LED = A illuminated
Position - 2	LED = B illuminated
Position - 3	LED = C illuminated
Position - 4	No LED illuminated
Position - 5	LED = E illuminated
Position - 6	LED = F illuminated
Position - 7 through 12	No LED illuminated

Be sure to connect the proper harness to the proper input connector on test box. Improper connection will result in alternate test results.

Testing A2B harness

Table 4

For Testing A2B Harness

Use test harness NUD420-912-USBminiB-F	Use test harness NUD420-912-USBminiB-F
Connector 1 signal return	Connector 2 switch output
Switch position	LED illuminated
Position - 1	No LED illuminated
Position - 2	LED = B illuminated
Position - 3	LED = C illuminated
Position - 4	LED = D illuminated
Position - 5	No LED illuminated
Position - 6	LED = F illuminated
Position - 7 through 12	No LED illuminated