BENDIX BW2771 User Manual download pdf (Page 46)

General Information

Appendix 4B, 4C

Step Procedure

B 1. VehicleIgnition:Key-ON,Engine-OFF.

2. Measure for ignition voltage on pins 4 and 5 on the harness connector.

a. If the voltage is within 0.6 volts of the battery voltage measured in Step A.

i. Proceed to Step C.

b. If voltage is less than 0.6 volts of the battery voltage measured in Step A or open.

    i. TestFailed.Checkcomponentfuse.TroubleshootpowersupplytotheDIUforopen/corroded

connections or shorts to ground and repeat Step.

Step Procedure

C 1. VehicleIgnition:Key-OFF,Engine-OFF.

2. Disconnect the 10-way connector from the VS-400 Forward Looking Radar (FLR).

3. Measure for zero voltage on pins 10 and 9 on the harness connector.

a. If the voltage is 0.5 volts or less.

i. Proceed to Step D.

b. If voltage is greater than 0.5 volts but less than battery voltage.

i. Test Failed. Check FLR power supply wiring for sources of stray voltage or shorts to voltage.

c. If the voltage is within 0.6 volts of the battery voltage measured in Step A.

i. Test Failed. The FLR is improperly wired or shorted to a battery power source. Correct the

wiring by connecting the FLR to main ignition power supply bus and repeat Step.

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BENDIX BW2771 User Manual Page 46