service TESLA MODEL S 2021 Owner´s Manual

2. Self-test of internal ground fault monitoring circuit failed3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
(CC_a005)
Unable to charge - Wall Connector GFCI tripped
Disconnect and retry or use different equipment
What this alert means:
Ground fault. Current is leaking through an unsafe path. Possible Line to ground or Neutral to ground fault.
What to do:
Try again by disconnecting the Wall Connector from the vehicle and reconnecting. If the problem persists, turn OFF the circuit breaker servicing the Wall Connector, wait 10 seconds, turn the circuit breaker ON again, then try reconnecting the Wall Connector to the vehicle. If the problem persists, contact Tesla.
(CC_a006)
Unable to charge - Wall Connector overcurrent
Disconnect and retry or use different equipment
What this alert means:
Over current protection.
What to do:
Reduce the vehicle

(CC_a007)
Unable to charge - Input voltage too high
Voltage must be within Wall Connector rating
What this alert means:
Over or under voltage protection.
What to do:
Consult your electrician to ensure appropriate voltage on the circuit breaker that services the Wall Connector.
(CC_a008)
Unable to charge - Input voltage too low
Voltage must be within Wall Connector rating
What this alert means:
Over or under voltage protection.
What to do:
Consult your electrician to ensure appropriate voltage on the circuit breaker that services the Wall Connector.
(CC_a009)
Unable to charge - Input wired incorrectly
Input wiring to Wall Connector must be corrected
What this alert means:
Input miswired: possibly Line and Neutral are swapped.
What to do:
The wiring between the wall power and the Wall Connector has been incorrectly installed. Consult your electrician.
(CC_a010)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
Troubleshooting Alerts
238MODEL S Owner

An internal issue was detected by the Wall Connector.1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
(CC_a011)
Unable to charge - Wall Connector too hot
Let Wall Connector cool and try again
What this alert means:
Over temperature protection (latchoff).
What to do:
Make sure the Wall Connector is not covered by anything and that there is no heat source nearby. If the problem persists in normal ambient temperatures (under 100

(CC_a019)
Unable to charge - Vehicle connection issue
Insert charge handle fully into charge port
What this alert means:
A communication error occurred between the Wall Connector and the vehicle.
What to do:
Try again by disconnecting the Wall Connector from the vehicle and reconnecting. If possible, plug the vehicle into another Wall Connector or a Mobile Connector to determine if the vehicle is able to communicate with other charging equipment. If the problem persists, contact Tesla.
(CC_a020)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
(CC_a021)
Unable to charge - No primary Wall Connector
Check that primary unit is powered and available
What this alert means:
Troubleshooting Alerts
242MODEL S Owner

(CC_a025)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
(CC_a026)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
Troubleshooting Alerts
244MODEL S Owner

1. Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
(CC_a027)
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds,
and turn the circuit breaker ON again. Then try reconnecting the Wall Connector to the
vehicle.
3.
If the issue persists, check for loose connections.
a.
Make sure there is no power to the Wall Connector.
b.
Remove the face plate and inspect the wiring terminals for any loose connections.
c.
Contact an electrician if necessary to make sure all wires are properly connected and
torqued according to the instructions in the Wall Connector Installation Manual.
4.
Once all connections have been checked and made secure, restore power to the Wall
Connector and try charging again by reconnecting to the vehicle.
5.
If the issue persists, the Wall Connector needs service. Schedule a service appointment
through your Mobile App.
Troubleshooting Alerts
245Consumer Information

If you have checked for and cleared any debris or foreign objects, but charging is still limited or
your vehicle will not charge at all, the charge port latch may be frozen. Use your Tesla Mobile
App to precondition your vehicle on HI for approximately 30 - 45 minutes. This should help
thaw any ice on the charge port latch so the charge cable can be properly inserted.
NOTE: Be sure to use your Mobile App to precondition the vehicle. Setting your climate control
for the cabin to HI using the touchscreen is not effective.
As this alert usually indicates a temporary condition due to cold ambient temperature or a
charge port inlet obstruction, and it does not typically indicate an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:

Continue to press the brake pedal as you normally would, and do not "pump" (repeatedly press and release) the pedal as this will interrupt the function.
This alert will clear when your vehicle comes to a stop or you are no longer pressing the brake pedal. It may still be displayed for up to 5 seconds afterward.
When this assist function activates, you may feel the brake pedal pull away from your foot and notice a strong increase in brake pressure. You may also hear a pumping sound coming from the
brake hydraulic unit at the front of the vehicle. This will usually last for a few seconds, depending
on road surface and vehicle speed. This is completely normal and does not indicate any issue
with your vehicle.
Reduced braking performance is usually temporary, and can occur for a number of reasons
including high brake temperatures after heavy brake use, or driving in extremely cold or wet
conditions. It can also indicate that your brake pads or rotors have worn to the point that
normal replacement is needed.
If you continue to experience reduced braking performance which does not improve over time, please contact Tesla service at your convenience for a brake inspection.
For more information, see Hydraulic Fade Compensation on page 67.
(PCS_a017)
Charging stopped - Power lost while charging
Check power source and charging equipment
Power has been lost during charging. This could result from the charging equipment losing
power from the source (for example, a wall outlet) or from an issue with the charging
equipment.
This alert is often accompanied by other alerts that can help you identify and troubleshoot the issue. Start by investigating any other displayed alerts that relate to charging issues.
Alternatively, you can check Mobile Connector or Wall Connector status lights to confirm power
to the device, and also refer to the product owner

As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate an issue with your vehicle that can be resolved by scheduling service, it is recommended that you:

As this alert is usually specific to external charging equipment and power sources, and it does not typically indicate an issue with your vehicle that can be resolved by scheduling service, it is recommended that you: