Back to 2002 Acura NSX
Help
2002 ACURA NSX
3.2L V6•RWD•MANUAL•gas
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor488Torque2138Fluid8DTC951Battery1Maintenance0Recalls0
C0146high severityChassis

Brake Assist Solenoid Circuit

on 2002 Acura NSX 3.2L V6 · RWD

What this code means

Malfunction in the brake assist solenoid that provides additional brake pressure during emergency stops.

Symptoms

  • Brake assist inactive
  • Warning light for brake assist
  • Longer stopping distance in emergencies

Common causes

  • Faulty brake assist solenoid
  • Solenoid wiring open or shorted
  • Module driver failure
  • Solenoid mechanically stuck

Diagnostic steps

  1. Test solenoid resistance
  2. Check wiring to solenoid
  3. Command solenoid with scan tool
  4. Inspect for mechanical binding
  5. Test module output signal

Repair notes

Replace brake assist solenoid or repair wiring.

🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Chassis codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2002 Acura NSX repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Acura NSX — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →