2008 TOYOTA HIGHLANDER TRAILER WIRE HARNESS Preparation

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1. Supplemental Restraint System (SRS) (a) Failure to carry out procedures listed below could result in possible deployment of airbag, personal injury, or unnecessary repairs to SRS. (b) Turn the key switch to the LOCK position. (Fig. 1-1) (c) Remove the key from the ignition switch. (d) Disconnect the negative battery cable. (Fig. 1-2) (e) Never use a voltmeter to troubleshoot any of the harnesses or connectors to the SRS. Accidentally probing the connectors to the SRS can lead to deployment of the airbag. (Fig. 1-3) (f) SRS wire harness loom/cover is bright yellow in color. Fig. 1-1 Fig. 1-2 Fig. 1-3 10 mm socket
TOYOTA HIGHLANDER 2008 – TRAILER WIRE HARNESS Procedure Page 5 of 16 pages Issue: A 04/13/07 2. Wiring Precautions (a) DO NOT pull on vehicle wires and/or wire harness. To uncouple electrical connectors, pull only on the connector. (Fig. 2-1) (b) Use nylon ties and adhesive foam strips to secure the vehicle harness and the trailer wire harness. (c) Ensure that all wires are properly insulated from ground. (d) When installing the trailer wire harness, make sure it is not cut or perforated by any sharp metal objects. 3. General Practices and Procedures (a) Before starting installation, refer to the supplemental restraint system procedures in Section 1 above. (b) Take care not to scratch any part of the vehicle. Bind the tips of tools (clip remover, slot screw driver, etc.) with vinyl tape to prevent damage to any part of the car, or use a nylon removal tool (resin based prying tool). (Fig. 3-1) (c) Use a small parts container to store removed bolts and tapping screws so that they can be reassembled correctly. (d) Ensure that seat/floor protectors are in position. (e) After fastening plastic ties, clip away all the excess of the ties using diagonal pliers. (Fig. 3-2)