24/08/2023 17:48:03
Charge Port Voltage Check
- 2023-08-24: Made procedures consistent across vehicle lines.
Warning
This procedure
verifies that high voltage power is no longer available to the charge port. Perform
this procedure before servicing any part of the charge port assembly.
Warning
Remove all
jewelry (watches, bracelets, rings, necklaces, earrings, ID tags, piercings,
etc.) from your person, and all objects (keys, coins, pens, pencils, tools,
fasteners, etc.) from your pockets before performing any procedure that exposes
you to high voltage.
Warning
If corrective
eyewear is necessary to safely perform any procedure, make sure that the eyewear
is securely restrained to the head and cannot fall off.
Warning
Only technicians
who have been trained in High Voltage Awareness and have completed
all required certification courses (if applicable) are permitted to perform this
procedure. Proper personal protective equipment (PPE) and
insulating HV gloves with a minimum rating of class
0 (1000V) must be worn at all times a high voltage cable, busbar, or
fitting is handled. Refer to Tech Note TN-15-92-003, High Voltage Awareness Care Points for
additional safety information.
Warning
Make sure that the
insulation meter and leads are capable of handling at least 500V DC.
Warning
Make sure that
the HV gloves are not expired.
- NA: HV gloves can be used up to 12 months after the testing date printed on the glove, but only 6 months after first use even if the gloves are still within the 12 month period. After either 12 months from the printed date or 6 months after first use, the gloves must be replaced with new gloves or recertified using a Tesla approved vendor. Gloves must also be recertified after use without outer protection gloves. An air leak test is not sufficient.
- EMEA: Class 0 (1000V) High Voltage gloves have no expiration date and may be used if they pass the pre-use assessment and the periodic inspection.
- APAC: Follow the
expiration date stated by the HV glove manufacturer, and:
- China only: Test the gloves every 6 months according to GB/T 17622.
Special tools required for this procedure:
Part Number | Description |
1083188-00-A | Fluke Digital Multimeter 179 |
1130480-00-A | Test Probes, Slim, Fluke TP38 |
Procedure (Single-Phase)
- Open the charge port door.
- Open the LH rear door or liftgate.
- Disconnect 12V power. See Disconnect 12V Power.
-
Set the multimeter to
measure DC voltage, touch the probes to the 12V auxiliary battery terminals,
and verify that the mulitimeter displays a voltage of 10 to 14 volts.
CAUTIONIf the voltage across the 12V auxiliary battery terminals is less than 10 volts or greater than 14 volts, the multimeter is not measuring reliably and must not be used. Use only a fully functional multimeter.
- Remove all loose articles and jewelry from your person.
- Put on safety glasses, High Voltage (HV) insulating gloves, and leather glove protectors.
- Prepare the multimeter with slim test probes.
-
Use the multimeter to check
voltages at charge port terminals B+ and B-.
NoteTouch the probes to the sides of the terminals, not the tips.WarningIf the voltage reading is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- Prepare the multimeter with the black alligator clip on the negative lead, and then ground the alligator clip to the LH rear door latch striker or the liftgate striker.
-
Use the multimeter to check
voltages at B+ and ground, and at B- and ground.
NoteTouch the probe to the sides of the terminals, not the tips.WarningIf the voltage reading at either location is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- If all previous charge port voltage readings were less than 10V, remove the multimeter ground connector from the liftgate striker and return to the procedure that specified the charge port voltage check.
Procedure (Three-Phase) (Except China)
- Open the charge port door.
- Open the LH rear door or liftgate.
- Disconnect 12V power. See Disconnect 12V Power.
-
Set the multimeter to measure DC voltage, touch the probes to the 12V
auxiliary battery terminals, and verify that the mulitimeter displays a
voltage of 10 to 14 volts.
CAUTIONIf the voltage across the 12V auxiliary battery terminals is less than 10 volts or greater than 14 volts, the multimeter is not measuring reliably and must not be used. Use only a fully functional multimeter.
- Remove all loose articles and jewelry from your person.
- Put on safety glasses, High Voltage (HV) insulating gloves, and leather glove protectors.
- Prepare the multimeter with slim test probes.
-
Use the multimeter to check voltages at the lower 4 terminals of the charge
port Type 2 connector.
NoteIf the terminals are from left to right, a, b, c, and d, then measure ab, ac, ad, bc, bd, and cd.NoteTouch the probes to the sides of the terminals, not the tips.WarningIf any voltage reading is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- Prepare the multimeter with the black alligator clip on the negative lead, and then ground the alligator clip to the LH rear door latch striker or the liftgate striker.
-
Use the multimeter to check voltages at the lower 4 terminals of the charge
port Type 2 connector and ground.
NoteIf the terminals are from left to right, a, b, c, and d, then measure a and ground, b and ground, c and ground, and d and ground.NoteTouch the probe to the sides of the terminals, not the tips.WarningIf the voltage reading at any location is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- If all previous charge port voltage readings were less than 10V, remove the multimeter ground connector from the LH rear door latch striker or the liftgate striker and return to the procedure that specified the charge port voltage check.
Procedure (Three-Phase) (China)
- Open the charge port door.
- Open the LH rear door or liftgate.
- Disconnect 12V power. See Disconnect 12V Power.
-
Set the multimeter to measure DC voltage, touch the probes to the 12V
auxiliary battery terminals, and verify that the mulitimeter displays a
voltage of 10 to 14 volts.
CAUTIONIf the voltage across the 12V auxiliary battery terminals is less than 10 volts or greater than 14 volts, the multimeter is not measuring reliably and must not be used. Use only a fully functional multimeter.
- Remove all loose articles and jewelry from your person.
- Put on safety glasses, High Voltage (HV) insulating gloves, and leather glove protectors.
- Prepare the multimeter with slim test probes.
-
Use the multimeter to check
voltages at charge port DC terminals B+ and B-.
NoteTouch the probes to the insides of the terminals, not the centers.WarningIf the voltage reading is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
-
Use the multimeter to check
voltages at the lower 4 terminals of the charge port AC connector.
NoteIf the terminals are from left to right, a, b, c, and d, then measure ab, ac, ad, bc, bd, and cd.NoteTouch the probes to the insides of the terminals, not the centers.WarningIf any voltage reading is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- Prepare the multimeter with the black alligator clip on the negative lead, and then ground the alligator clip to the LH rear door latch striker or the liftgate striker.
-
Use the multimeter to check
voltages at charge port DC terminals B+ and ground, and at B- and
ground.
NoteTouch the probe to the insides of the terminals, not the centers.WarningIf the voltage reading at either location is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
-
Use the multimeter to check
voltages at the lower 4 terminals of the charge port AC connector and
ground.
NoteIf the terminals are from left to right, a, b, c, and d, then measure a and ground, b and ground, c and ground, and d and ground.NoteTouch the probe to the insides of the terminals, not the centers.WarningIf the voltage reading at any location is greater than 10V, the HV battery contactors are closed or welded. Stop this procedure and contact Service Engineering.
- If all previous charge port voltage readings were less than 10V, remove the multimeter ground connector from the LH rear door latch striker or the liftgate striker, and return to the procedure that specified the charge port voltage check.