P1666 Dodge Code - Cruise Control Module Internal
Quick Answer
This diagnosis runs continuously when the engine is running. Common causes include Faulty Cruise Control Module, Cruise Control Module harness is open or shorted, Cruise Control Moduler circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1666 Dodge indicates Cruise Control Module Internal.
- Common causes
- Common causes include Faulty Cruise Control Module, Cruise Control Module harness is open or shorted, Cruise Control Moduler circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1666 Dodge Description
What are the Possible Causes of the DTC P1666 Dodge?
- Faulty Cruise Control Module
- Cruise Control Module harness is open or shorted
- Cruise Control Moduler circuit poor electrical connection
How to Fix the DTC P1666 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1666 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1666 Dodge Code
1. What does the OBDII code P1666 mean on a Dodge vehicle?
The P1666 code indicates a fault with the Cruise Control Module's internal circuitry or functionality.
2. What are common symptoms of the P1666 code in a Dodge?
Symptoms may include the cruise control not engaging, turning off unexpectedly, or the cruise control light not illuminating.
3. What causes the P1666 code to appear?
Common causes include a malfunctioning Cruise Control Module, damaged wiring, poor electrical connections, or, in rare cases, a fault in the Powertrain Control Module (PCM).
4. Can the P1666 code affect other vehicle systems?
While primarily related to cruise control, it may also trigger a Check Engine Light and potentially interact with PCM functions.
5. How is the P1666 code diagnosed on a Dodge?
A mechanic will use a scan tool to read the code, inspect the cruise control system's wiring and connections, and test the Cruise Control Module for proper operation.
6. Can I drive my Dodge with a P1666 code?
Yes, you can drive the vehicle, but the cruise control system may not function properly. It’s best to address the issue promptly to restore functionality.
7. How do you fix a P1666 code on a Dodge?
Repairs may include replacing the Cruise Control Module, repairing or replacing damaged wiring, or cleaning and securing electrical connections.
8. Is replacing the Cruise Control Module always necessary for a P1666 code?
Not always. The issue could be due to wiring or connection problems, so thorough diagnostics should be performed before replacing the module.
9. How much does it cost to fix a P1666 code on a Dodge?
Repair costs vary but can range from $100 to $600, depending on whether the issue is with wiring, connections, or the Cruise Control Module.
10. Can I clear the P1666 code without fixing the problem?
You can temporarily clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.
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