P1683: Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted

CHRYSLER DODGE JEEP PLYMOUTH PONTIAC OTHER MAZDA BUICK

Severity

Medium

System

Manufacturer-Specific Powertrain

Last reviewed: Jan 1, 0001 Last updated: Jan 1, 0001

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What Does P1683 Mean?

P1683 is a manufacturer-specific diagnostic trouble code: Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted. This code applies to CHRYSLER, DODGE, JEEP, PLYMOUTH, PONTIAC vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1683

⚠️ Check Engine Light (MIL) illuminated
⚠️ No signal from Speed Control Power Relay Or Speed Control 12 Volt Driver
⚠️ Related system defaulting to backup values
⚠️ Reduced engine performance

Common Causes

🔍 Broken wire in Speed Control Power Relay Or Speed Control 12 Volt Driver circuit
🔍 Disconnected Speed Control Power Relay Or Speed Control 12 Volt Driver electrical connector
🔍 Speed Control Power Relay Or Speed Control 12 Volt Driver internal open circuit failure
🔍 Corroded terminal pins preventing electrical contact

Frequently Asked Questions

What does P1683 mean?

P1683 indicates: Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted. The vehicle's computer has detected that the Speed Control Power Relay Or Speed Control 12 Volt Driver is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1683?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1683 for extended periods may cause additional problems.

How much does it cost to fix P1683?

Repair costs for P1683 typically range from $30 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Locate and repair broken wire in Speed Control Power Relay Or Speed Control 12 Volt Driver circuit
🔧 Replace damaged Speed Control Power Relay Or Speed Control 12 Volt Driver connector
🔧 Replace Speed Control Power Relay Or Speed Control 12 Volt Driver if internally open

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.