Free API
Help
2003 DODGE DURANGO
4.7L V8•4WD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor492Torque3360Fluid10DTC1719Battery1Maintenance0Recalls6
P0594low severityPowertrain

Cruise Control Servo Control Circuit/Open

on 2003 Dodge Durango 4.7L V8 · 4WD

What this code means

The PCM detected an open in the cruise control servo control circuit. The servo that adjusts throttle for cruise cannot be controlled properly.

Symptoms

  • Cruise control does not maintain speed
  • Cruise control fails to engage
  • Speed drifts when cruise set

Common causes

  • Open in servo control wiring
  • Faulty cruise control servo
  • Poor servo connector contact
  • PCM driver circuit fault

Diagnostic steps

  1. Scan for cruise servo codes
  2. Check servo control circuit continuity
  3. Inspect servo connector and pins
  4. Test servo actuation with scan tool
🔌 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 Powertrain 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. 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 2003 Dodge Durango 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 Dodge Durango — $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 →