2026-08-05

Procédure de désactivation HT du véhicule (Ensemble structural)

Code de correction 17010020 0.48 REMARQUE : À moins d’indications explicites contraires dans la procédure, le code de correction et le temps forfaitaire ci-dessus représentent tout le travail à être fait pour cette procédure, notamment les procédures connexes. N’appliquez pas plusieurs codes de correction à la fois, à moins qu’il vous soit explicitement indiqué de le faire. REMARQUE : Consultez Temps forfaitaires pour en apprendre plus à propos des temps forfaitaires et de leur création. REMARQUE : Consultez Protection individuelle pour vous assurer de porter l’équipement de protection individuelle adéquat lors vous effectuez la procédure ci-dessous. REMARQUE : Voir pour consulter les pratiques de travail sécuritaires et saines.

  • 2026-07-30: Added warning on the use of a Voltage Absence Tester for certain regions.
  • 2025-11-26: Added note to keep HV gloves on if procedure that required disablement involves touching HV components.
  • 2024-12-20: Added note to set the clamp meter to measure DC.
  • 2024-06-05: Added warning to measure the specified order of locations for high voltage.
  • 2023-12-05: Updated references to other Vehicle Isolation Procedures.
  • 2023-11-08: Added/updated HV insulating glove steps.
  • 2023-05-02: Updated current measurement step sequence and consistency.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
This procedure verifies that high voltage power is no longer available to high voltage components (A/C compressor, inverters, etc). Perform this procedure before servicing high voltage components.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Retirez tous vos bijoux (montres, bracelets, bagues, colliers, boucles d’oreilles, étiquettes d’identification, piercings, etc.) et tous les objets (clés, pièces de monnaie, stylos, crayons, outils, attaches, etc.) de vos poches avant d’effectuer toute procédure vous exposant à un courant haute tension.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Si une procédure exige que vous portiez des verres protecteurs, assurez-vous que ces derniers sont bien retenus à votre tête et qu’ils ne peuvent pas tomber.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Always wear High Voltage (HV) gloves and safety glasses when handling any high voltage component, including test equipment. Before each use, test gloves using an authorized glove tester and verify that the testing date on the gloves has not expired.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
All repair and operating instructions should be reviewed and understood before working on Tesla vehicles, associated components, or associated repair equipment.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Assume that high voltage is present at all times when working on a Tesla vehicle, associated high voltage components, or associated high voltage test equipment until proven otherwise. Be aware that energy states can change during testing, so always use caution.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Always have an electrical safety hook in the area when working with HV components. Electrical safety hooks are used to remove an injured person from a live high voltage circuit without risking additional injury.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Use a high voltage digital multimeter to check for the presence of high voltage on both sides of the connector every time a high voltage connector is disconnected.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Dans certaines régions, un testeur d'absence de tension (VAT) est requis pour cette procédure et l'utilisation d'un multimètre n'est pas autorisée. Respectez toujours la réglementation locale ou régionale en matière d’outillage.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Make sure that the insulation meter and leads are capable of handling at least 500V DC.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
Obey all instructions when using test equipment or servicing a Tesla vehicle or associated high voltage components. If repair instructions are not clear or if there are any questions about how to use the test equipment, escalate a Toolbox session before proceeding.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
If any test equipment fails to operate as expected, do not attempt to diagnose or repair the vehicle. Follow the appropriate lock out – tag out procedure for the equipment, notify your manager.
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Avertissement
When using test equipment, make sure that all cables are connected before turning equipment on or otherwise initiating use.
Warning IconA warning icon, calling your attention to a possibly risky situation
Avertissement
High voltage is present on battery recovery chargers whenever the HV LEDs are lit. However, indicators and LEDs can fail. Do not assume that if an LED is not lit no high voltage is present. Assume high voltage is present at all times until proven otherwise by use of a multimeter.
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Avertissement

Seuls les techniciens qui ont complété tous les cours de la certification requis sont autorisés à effectuer cette procédure. Tesla recommande aux techniciens fournisseurs de service tiers de suivre la formation équivalente avant d'exécuter cette procédure. Pour obtenir plus d'information sur les exigences pour les techniciens Tesla ou les descriptions à ce sujet pour les tiers, consultez les exigences pour la certification HT. Portez toujours un équipement de protection personnelle et des gants isolants haute tension ayant un classement minimal de 0 (1000 volts) avant de manipuler un câble, une barre omnibus ou des raccords haute tension. Se référer à Tech Note TN-15-92-003, Mises en garde relatives à la haute tension pour des informations supplémentaires sur la sécurité.

Équipement :
  • 1146175-00-A Pince actuelle, Fluke 374FC
  • 1130480-02-A Test Probes, Slim

Isolate

Informational PurposesAn informational icon, calling your attention
Remarque
This procedure is for Ensemble structural 5 seat vehicles. For instructions on checking HV disablement on Ensemble non-structurel 5 seat vehicles, see Procédure de désactivation HT du véhicule. For instructions on checking HV disablement on Ensemble non-structurel 7 seat vehicles, see Procédure de désactivation HT du véhicule (7 sièges)
  1. Open all the doors and lower all the windows.
  2. Remove the rear underhood apron. See Tablier sous le capot - arrière (retirez et remplacez).
  3. Disconnect 12V/LV power. See Alimentation 12 V/BT (déconnectez et connectez).
  4. Set the current clamp to measure voltage , and then measure the voltage across the 12V/LV auxiliary battery terminals using the test probes.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    For LV (Li-Ion) auxiliary battery: if the voltage across the battery terminals is 0, the battery may have switched off internally. Use a 12V Lead Acid battery for testing. For mobile technicians: use the 12V Lead Acid battery in the Mobile Service vehicle.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    ATTENTION
    For LV (Li-Ion) auxiliary battery: if the voltage across the battery terminals is less than 13 volts or greater than 16 volts, the current clamp is not measuring reliably and must not be used.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    ATTENTION
    For 12V (Lead Acid) auxiliary battery: if the voltage measured is less than 10 volts or greater than 14 volts, the current clamp is not measuring reliably and must not be used.
  5. Remove the mid aero shield panel. See Panneau – bouclier aérodynamique – arrière (retrait et remplacement).
  6. Remove all items from pockets and ensure not wearing metal items.
  7. Inspect HV insulating gloves.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Check gloves for damage prior to use, Refer to service document TN-15-92-003 R1, for information on inspecting HV gloves.
  8. Put on HV insulating gloves, leather outer gloves, and safety glasses.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Avertissement
    Continue to wear the gloves until instructed to remove them.
  9. Power on the current clamp meter, and then zero out the meter for measurment.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Avertissement
    Make sure to set the clamp meter to measure DC amps ("Adc").
  10. Install the current clamp meter onto one cable of the rear drive unit HV harness.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Make sure the meter is facing the correct direction.
  11. Measure the current in the HV cable.
    • If the current is within the range of -0.5 A to 0.5 A, continue to the next step.
    • If the current is outside the range of -0.5 A to 0.5 A, for example -0.8 A or 1.3 A, re-perform the LV power disconnect procedure. See Alimentation 12 V/BT (déconnectez et connectez). If the measurement is still outside the range of -0.5 A to 0.5 A, escalate for assistance.
      Warning IconA warning icon, calling your attention to a possibly risky situation
      Avertissement
      DO NOT DISCONNECT any HV harness when the current measurement is outside the range of -0.5 A to 0.5 A.
  12. Disconnect the RDU HV cable from the HV battery.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Release the locking tab, and then rotate the release lever upward to disengage the connector. Do not force the release lever up. Ensure the alignment tabs on the RDU header are not damaged.
  13. Verify no high voltage at the rear drive unit HV header.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Avertissement
    Afin de limiter l'exposition potentielle à la haute tension, mesurez la haute tension dans l'ordre spécifié ci-dessous.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Verify test equipment is rated CATIII or higher. Measure B+ to Ground, B- to Ground, B+ to B-. If the voltage is greater than 10V, the pack contactors are not open or welded. Stop work and reach out to Service Engineering.
    Measurement Order

    Component Test

    B+

    (LH probe opening)

    B-

    (RH probe opening)

    GND

    Measured Voltage Less Than 10 V

    Measured Voltage 10 V Or More
    1

    HV battery positive contactor

    Positive (+) Lead

    Negative (-) Lead on screw that attaches the RDU HV header to the HV battery

    Pass

    Fail

    HV battery positive contactor might be seized. See .
    2

    HV battery negative contactor

    Positive (+) Lead

    Negative (-) Lead on screw that attaches the RDU HV header to the HV battery

    Pass

    Fail

    HV battery negative contactor might be seized. See .
    3

    HV

    Positive (+) Lead

    Negative (-) Lead

    Pass

    Fail

    Perform a HV battery contactor seize check. See .
    Figure 1. B+ to GND measurement
    Figure 2. B- to GND measurment
    Figure 3. B+ to B- measurment
  14. Return to the procedure that required the vehicle to be electrically isolated.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Avertissement
    Respectez toutes les consignes de sécurité et les exigences en matière d'ÉPI de la procédure qui a nécessité l'isolation électrique du véhicule. N'enlevez pas les gants haute tension si la procédure vous oblige à manipuler des câbles, des barres omnibus ou des raccords haute tension.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    If you are no longer exposed to high voltage, the HV insulating gloves may be removed.

Integrate

  1. If removed, put on the HV insulating gloves and leather over gloves.
  2. Connect the RDU HV cable to the HV battery.
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Verify that the lever is in the upright and open position. Carefully seat the connector and allow the lever to engage. Fully secure the lever and verify that the red tab is locked.
  3. Remove the leather glove protectors and the HV insulating gloves.
  4. Install the mid aero shield panel. See Panneau – bouclier aérodynamique – arrière (retrait et remplacement).
    Informational PurposesAn informational icon, calling your attention
    Remarque
    Apply Loctite 222 onto the mid aero shield bolts.
  5. Connect 12V/LV power. See Alimentation 12 V/BT (déconnectez et connectez).
  6. Install the rear underhood apron. See Tablier sous le capot - arrière (retirez et remplacez).
  7. Raise all the windows and close all the doors.