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Checking Subaru RES antenna connection

May 7, 2024

Subaru Techline has received calls regarding inoperative RES (remote engine start) systems after installation.

Related To: Mitchell 1

Example of RES connection not fully seated.

Subaru Techline has received calls regarding inoperative RES (remote engine start) systems after installation.

Although technicians are able to successfully register the system, when attempting to start the vehicle with RES transmitters, there is no response from the vehicle. A quick check of the RES antenna will most likely show the connection is not fully seated.

When routing the RES antenna, verify that there is enough slack in the harness to tuck it under the headliner. If there is not enough slack, excessive pressure will be applied against the harness and disconnect the antenna. The RES antenna connection must be checked for full seating.

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Motor Age Staff

Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored.