| CHECK HARNESS BETWEEN DATA LINK CONNECTOR AND CHASSIS GROUND. |
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Measure the resistance of harness between data link connector and chassis ground. Connector & terminal (B40) No. 4 — Chassis ground: (B40) No. 5 — Chassis ground: |
| QUESTION | |
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Is the resistance less than 5 Ω? | |
| Yes | No |
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Repair the poor contact of data link connector. |
Repair the harness and connector. NOTE: In this case, repair the following item: • Open circuit in harness between data link connector and chassis ground • Poor contact of coupling connector |