Bendix Commercial Vehicle Systems VORAD VS-400 INSTALLATION NOTES User Manual

Page 46

General Information

Appendix 4B, 4C

Step

Procedure

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 .

Test Failed. Check component fuse. Troubleshoot power supply to the DIU for open / corroded
connections or shorts to ground and repeat Step .

Step

Procedure

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 .