Free API
2.9L I6FWDAUTOMATICgasB6294S
6 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
P0930moderate severityPowertrain

Gear Shift Lock Solenoid Control Circuit High

on 2005 Volvo S80 2.9L I6 · FWD

What this code means

The gear shift lock solenoid control circuit voltage is reading higher than expected. This typically indicates an open circuit or a short to voltage.

Symptoms

  • Shift lock not releasing
  • Shifter difficult to move
  • Transmission warning light on

Common causes

  • Open circuit in wiring
  • Faulty shift lock solenoid
  • Short to battery voltage
  • Failed TCM output driver

Diagnostic steps

  1. Read fault codes
  2. Inspect wiring for opens or shorts to power
  3. Verify solenoid resistance
  4. Check circuit voltage with scan tool commands

Other Powertrain codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 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
⚠ STILL BEHIND THE PAYWALL
The 2005 Volvo S80 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 Volvo S80 — $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 →