Right Body Controller — 100 ms Task Error
The TESLA-VCRIGHT_a045 (VCRIGHT) EV fault code means: Right Body Controller — 100 ms Task Error. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $50-$150 DIY for connector cleaning, harness repair, or budget aftermarket handle assembly. OEM Model S handle assembly $400-$600 plus $150-$300 professional labor. Model 3 and Model Y handle assemblies run $80-$180 OEM and are easier to self-install.
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Common Symptoms
- Alert VCRIGHT_a045 shown on the touchscreen
- The vehicle may log the alert without any change the driver notices
Probable Causes (Ranked by Likelihood)
- The vehicle reported VCRIGHT_a045. Tesla's firmware identifies this alert as "VCRIGHT_a045_Task100msError" — a software timing fault in the right body controller's 100 millisecond task, not a door or window mechanism fault. High
Frequently Asked Questions
What does VCRIGHT_a045 mean?
Right Body Controller — 100 ms Task Error. Tesla's firmware identifies it as "VCRIGHT_a045_Task100msError".
Can a generic OBD2 scanner read this?
No. Tesla alerts are a manufacturer-specific system and appear in no SAE standard, so a generic OBD-II scan tool cannot read or clear them. The alert text on the touchscreen and the Tesla app are the authoritative sources.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
Read the alert text on the touchscreen exactly as shown — Tesla's own wording is more specific than any third-party list, this page included.
Check for a Tesla service bulletin or a pending software update; a number of alerts clear on their own after an over-the-air update.
If the alert persists, request service through the Tesla app. Tesla alerts are not standard OBD-II codes and a generic scan tool will not read or clear them.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- Tesla alert dictionary (canonical firmware alert identifiers)community-maintained dictionary, not an official manufacturer document
Commonly Affected Vehicles
- Tesla Model S (LR) -- flush retractable handle design makes this the highest-frequency platform for this code
- Tesla Model S (Plaid) -- same handle architecture as LR, same failure profile
- Tesla Model X (LR) -- uses similar VCRIGHT architecture with motorized handle on front-right door
- Tesla Model X (Plaid) -- same as LR with identical VCRIGHT fault reporting
- Tesla Model 3 (Long Range AWD) -- less common due to simpler non-retracting handle but wiring faults still occur
- Tesla Model Y (LR AWD) -- similar to Model 3 handle design, handle motor faults less frequent but wiring faults seen
- Tesla Model Y (Performance) -- same platform as LR AWD, same diagnostic approach
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