Product Safety Information
10
Pretest Procedures
Step Procedure
B 1. VehicleIgnition:Key-OFF,Engine-OFF.
2. Disconnect the 8-way connector from the back of the VS-400 Driver Interface Unit (DIU).
3. Measure for zero voltage on pins 4 and 5 on the harness connector.
a. If the voltage is 0.5 volts or less.
i. Proceed to Step C.
b. If the voltage is greater than 0.5 volts, but less than battery voltage.
i. Test Failed. Check DIU 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 DIU is improperly wired to battery power. Correct the wiring by connecting the FLR
to ignition power and repeat Step.
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