Tesla Roadster

Yellow Charge Cable Repair

Tesla Roadster โ€” Yellow Charge Cable (GFI Plug) Upgrade

OEM Yellow Charge Cable with GFI plug

The OEM 120 VAC charge cable for the Tesla Roadster uses a Ground Fault Interrupter (GFI) 15 A plug. Over time, the stranded conductors inside the plug compress and loosen, raising resistance and heat. That heat damages the GFI electronics, causing intermittent charging, nuisance trips, or total failure. These plug failures are among the most common causes of
bricked Roadsters (Dead battery packs left uncharged).

Why GFI plugs fail in the field

Whatโ€™s going on?

  • Shared/daisy-chained outlets: Many 120 V circuits arenโ€™t dedicated. Continuous 15 A draw increases voltage drop and heat at the plug.
  • Low-tech GFI board: Heat browns the PCB and weakens solder joints and the relay/triac, degrading ground-fault sensing.
  • No clean failure: Compromised plugs often โ€œlimp,โ€ delivering sub-standard current with intermittent tripsโ€”then quit when the car is unattended (storage, vacation).

Recommended fix

In our Service Center we routinely replace this failure-prone component, and we have yet to open one that didnโ€™t show internal heat discolorationโ€”i.e., โ€œready to failโ€ without warning. Send us your charge cable and we will upgrade and repair it.

Upgraded Yellow Charge Cable

We remove the Ground Fault Interrupter plug and re-terminate the stranded input conductors for a longer-lasting, lower-resistance connection.

  • Eliminates the failure-prone GFI module in the cord-end.
  • Stabilizes charging current and reduces nuisance trips.
  • Improves durability of the cord termination.

For log-file support, bricked-Roadster CPR, or general Roadster tech help, call 623-433-8500.

PRICE:

$165.00

Gruber Motors