2026-09-10

Procédure de désactivation HT du véhicule

Code de correction 17010000 0.30 REMARQUE : À moins d’indications explicites contraires dans la procédure, le code de correction et le temps à taux fixe (FRT) connexe représentent tout le travail à accomplir pour cette procédure, y compris 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.

  • 2026-09-10: Updated the procedure to use the amp clamp and voltage measurement method at the rear drive unit cables from underneath the vehicle.
  • 2025-11-26: Added note to keep HV gloves on if procedure that required disablement involves touching HV components.
  • 2025-10-22: Added info in measurement table on GND point to be used for Negative (-) Lead, modified measurement sequence.
  • 2025-03-24: Added warning for regional tooling regulations.
  • 2025-01-30: Clarified B+ and B- probe step.
  • 2024-10-21: Rearranged multimeter probing images to align with HV measurement table.
  • 2024-06-05: Added warning to measure the specified order of locations for high voltage.
  • 2023-12-12: Updated voltage measurement order.
  • 2023-12-05: Updated references to other Vehicle Isolation Procedures.
  • 2023-11-08: Added/updated HV insulating glove steps.
  • 2023-08-30: Added a tip about replacing the probe to the multimeter-related step.
Warning
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
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
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
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
All repair and operating instructions should be reviewed and understood before working on Tesla vehicles, associated components, or associated repair equipment.
Warning
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 err on the side of caution.
Warning
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
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
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
Make sure that the multimeter and leads are capable of handling at least 500V DC.
Warning
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
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.
Warning
When using test equipment, make sure that all cables are connected before turning equipment on or otherwise initiating use.
Warning
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.
Warning

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.

Equipment:
  • 1083188-01-B - Digital Multimeter Unit, EXTECH 355
  • 1754057-00-A - CURRENT PROBE, GEN, CLAMP, DC, 600V
  • 1140311-00-A - LEVER LOCK, HV CONNECTOR, MODEL 3
  • 1115247-01-A - Electronic Test Lead, CAT IV 1000V
  • 1130480-02-B - Slim Test Probes, CAT III 1000V

Procedure

Note
This procedure is for Ensemble non-structurel 5 seat vehicles. For instructions on checking HV disablement on Ensemble non-structurel 7 seat vehicles, see Procédure de désactivation HT du véhicule (7 sièges). For instructions on checking HV disablement on Ensemble structural 5 seat vehicles, see Procédure de désactivation HT du véhicule (Ensemble structural).
  1. Disconnect 12V/LV power. See Alimentation 12 V/BT (déconnectez et connectez).
  2. Set the multimeter to measure voltage, and then measure the voltage across the 12V/LV auxiliary battery terminals.
    Note
    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.
    CAUTION
    For LV (Li-Ion) auxiliary battery: if the voltage across the battery terminals is less than 13 volts or greater than 16 volts, the multimeter is not measuring reliably and must not be used.
    CAUTION
    For 12V (Lead Acid) auxiliary battery: if the voltage measured is less than 10 volts or greater than 14 volts, the multimeter is not measuring reliably and must not be used.
  3. Remove the rear aero shield panel. See Panneau – bouclier aérodynamique – arrière (retrait et remplacement).
  4. Remove the rear skid plate. See .
  5. Install the current clamp meter onto one cable of the rear drive unit HV harness.
    Note
    Make sure the meter is zeroed out and is facing the correct direction as shown.
  6. 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 vehicle electrical isolation again to make sure that all was properly shut down. If the measurement is still outside the range of -0.5 A to 0.5 A, escalate for assistance.
    Warning
    DO NOT DISCONNECT any HV harness when the current measurement is outside the range of -0.5 A to 0.5 A.
  7. Remove the clamp meter from the cable.
  8. Remove the nut that attaches the rear drive unit HV cable bracket to the HV battery.
    Note
    The number of the fasteners may vary.
    Tip
    L'un ou plusieurs des outils suivants sont recommandés :
    • Douille de 10mm
  9. Remove all jewelry and empty your pockets before continuing this procedure.
  10. Inspect and put on HV insulating gloves, leather outer gloves, and safety glasses before continuing this procedure.
  11. Disconnect the connector that attaches the rear drive unit HV cable to the HV battery.
    Note
    Release the locking tab and rotate the release lever up to disengage the connector. Do not force the release lever up. Ensure the alignment tabs on the rear drive unit header are not damaged.
  12. Use the high voltage multimeter with CAT III probes to verify that no high voltage is present at the rear drive unit HV header.
    Warning
    Afin de limiter l'exposition potentielle à la haute tension, mesurez la haute tension dans l'ordre spécifié ci-dessous.
    Measure the following voltages:
    1. B+ to ground
    2. B- to ground
    3. B+ to B-
    Warning
    If any voltage is greater than 10V, the contactors are closed or welded. Escalate to Service Engineering.
  13. Make sure the connector lock is 90 degrees from the connector, and then connect the connector that attaches the rear drive unit HV cable to the HV battery.
    Note
    Use one hand to support the connector while the other latching the locking tab. Once installed, verify that the latch is not damaged and is fully secured in the latched position.
  14. Remove the leather over gloves and the HV insulating gloves.
  15. Install the nut that attaches the rear drive unit HV cable bracket to the HV battery.
    Note
    The number of the fasteners may vary.
    Tip
    L'un ou plusieurs des outils suivants sont recommandés :
    • Douille de 10mm
  16. Install the rear skid plate. See .
  17. Install the rear aero shield panel. See Panneau – bouclier aérodynamique – arrière (retrait et remplacement).
  18. Connect 12V/LV power. See Alimentation 12 V/BT (déconnectez et connectez).
  19. Return to the procedure that required the vehicle to be electrically isolated.
    Warning
    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.
    Note
    If you are no longer exposed to high voltage, the HV insulating gloves may be removed.