BENDIX VORAD VS-400

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General Information

Pretest Procedures

Step Procedure

M 1. VehicleIgnition:Key-OFF.

2. Measure the resistance across pins 4 and 9 (J1939 High to Ground).

3. Measure the resistance across pins 5 and 9 (J1939 Low to Ground).

   a. Iftheresistanceisgreaterthan100Kohmsoropen(InniteResistance).

i. Test Complete.

   b. Iftheresistanceisbetween0to100Kohms.

i. Test Failed. Check for shorted connections in the vehicle's J1939 data link harness.

Unplug all J1939 data link components from the data link to isolate a potential

defective component. (See Note)

Note: Refer to vehicle OEM repair manual or contact the OEM for more information on the J1939 data link harness.

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