Tesla Model 3 Quick Start Manual

Tesla Model 3 Quick Start Manual

12v power circuit for third-party accessories
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Model 3 12V Power Circuit for Third-Party Accessories

All Model 3 vehicles are equipped with a 12V power socket which is located in the center console's rear
compartment (Figure 1).
The purpose of this power socket is to provide a switched power source that reduces the risk of vehicle
damage due to improperly installed third-party equipment. Only when a more permanent installation is
required should the circuit that feeds the power socket be used. This document is intended to help locate
the recommended 12V power circuit, and provides informational support to individuals looking to safely
splice into the 12V power circuit.
CAUTION: Splicing into the 12V system is done solely at the user's risk and can result in increased
draining of, or potential damage to, the vehicle or 12V battery. Potential effects of modifying Model 3 with
third-party components can include, but are not limited to, reduced driving range and increased
electromagnetic interference (EMI).
CAUTION: Always refer to the Service Manual for the most up-to-date instructions on disconnecting
and reconnecting 12V power and removing and installing center console trim components. The
instructions in this document may not be applicable to the particular vehicle you are working on due to
build date, configuration changes, market region, etc.
NOTE: Tesla does not endorse the use of third-party equipment and does not accept any
responsibility for any damage incurred from installing non-OEM equipment.
NOTE: Tesla employees are not permitted to install, or assist with the installation of, third-party
equipment.
CD-19-17-001 R1
Figure 1
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Summary of Contents for Tesla Model 3

  • Page 1 Model 3 12V Power Circuit for Third-Party Accessories All Model 3 vehicles are equipped with a 12V power socket which is located in the center console’s rear compartment (Figure 1). Figure 1 The purpose of this power socket is to provide a switched power source that reduces the risk of vehicle damage due to improperly installed third-party equipment.
  • Page 2 Accessing the 12V Power Circuit Refer to the following steps for how to access the 12V power circuit within the center console. CAUTION: 12V power must be disconnected as detailed in the Service Manual before splicing into the 12V power circuit; do not attempt to splice into the 12V power circuit before performing the 12V disconnect procedure.
  • Page 3 12V power. CAUTION: Failure to properly disconnect 12V power prior to splicing into the 12V power circuit can result in damage to the vehicle or the 12V battery. Tesla is not responsible for any damage to the vehicle or 12V battery.
  • Page 4 Splicing Into the 12V Power Circuit Tesla recommends to make a T-junction connection between the 12V auxiliary socket and its electrical connector (Figure 6). This method is preferred because the original vehicle wiring is not compromised. Figure 6 Alternatively, 12V power can be accessed from the gray 3-pin connector (Delphi 12176836) that connects to the 12V auxiliary socket (Figure 7).
  • Page 5 12V power supply in case of overcurrent draw. If an overcurrent draw is detected, 12V power will be restored once Model 3 has been powered off and on, assuming the cause of the overcurrent is no longer present. Powering off Model 3 can be done by closing all doors and walking out of range from the vehicle with the phone key for a few seconds or by locking the doors with the key fob or key card and waiting a few seconds.

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