RENR5042-02 121 Troubleshooting Section Always use a 1U-5804 Crimp Tool to service Deutsch HD and DT connectors. Never solder the terminals onto the wires. Refer to “SEHS9615, Servicing Deutsch HD and DT Style Connectors”. Always use a 147-6456 Removal Tool to remove wedges from DT connectors. Never use a screwdriver to pry a wedge from a connector. Always use a breakout harness for a voltmeter probe or a test light. Never break the insulation of a wire in order to access to a circuit for measurements. If a wire is cut, always install a new terminal for the repair.
The connection of any electrical equipment and the disconnection of any electrical equipment may cause an explosion hazard which may result in in- jury or death. Do not connect any electrical equip- ment or disconnect any electrical equipment in an explosive atmosphere. g01131276 Illustration 47 Diagram for the installation of a connector plug (typical example) (1) Electronic Control Module (ECM) connector (2) Correctly inserted plug (3) Incorrectly inserted plug Test Step 1. Check Connectors for Moisture and Corrosion B. Ensure that the sealing plugs are in place. If any of the plugs are missing, replace the plug. Ensure that the plugs are inserted correctly into the connector.
Refer to Illustration 47. g01131019 Illustration 48 Seal for a three-pin connector (typical example) g01131211 Illustration 46 Leaky seal at the connector (typical example) A. Inspect all wiring harnesses. Ensure that the routing of the wiring harness allows the wires to enter the face of each connector at a perpendicular angle. Otherwise, the wire will deform the seal bore. Refer to Illustration 46. This will create a path for the entrance of moisture. Verify that the seals for the wires are sealing correctly.