P0718 Code: Input/Turbine Speed Sensor Circuit Intermittent
Note: We do not currently have verified model-specific diagnostic data for the Ram Promaster. The symptoms and fixes listed below are the standard generic OBD2 guidelines for the P0718 code. Always consult a factory service manual before replacing parts.
What does this mean?
Code P0718 indicates a problem with the transmission input/turbine speed sensor.
Diagnostic system: Transmission control and shift monitoring
On a Ram Promaster, the P0718 code should be diagnosed as part of the transmission control and shift monitoring group. Related codes and live data from this same system can change the repair priority, so avoid replacing parts from the code name alone.
Most Common Causes for Ram Promaster
- Faulty input/turbine speed sensor
- Low, dirty, or burnt transmission fluid
- Damaged, chafed, or broken wiring harness
Symptoms to Watch For
- Check Engine Light is illuminated
- Transmission slipping between gears
- Hard or harsh gear shifting
- Transmission stuck in one gear
Before replacing parts, check these first
- Check fluid level and condition when the vehicle design allows it.
- Scan transmission module data, not only generic engine codes.
- Look for speed sensor, solenoid, and electrical codes before assuming internal transmission failure.
- Check for blown fuses, weak battery voltage, and damaged connectors before buying major parts.
How to Diagnose
Common Mistakes
Assuming the transmission needs rebuilding before checking fluid, sensors, solenoids, wiring, and control-module codes. Always confirm the fault with freeze-frame data, live data, visual inspection, and circuit checks before spending money on parts.
Frequently Asked Questions
Can I drive with the P0718 code?
If the check engine light is solid, you can usually drive to a safe location or mechanic. If the light is flashing, pull over immediately to prevent catastrophic engine or catalytic converter damage.
Will the P0718 code clear itself?
Once the underlying problem is fixed, the engine computer will run its self-checks. If it passes over several drive cycles, the light will turn off automatically. You can also clear it immediately using an OBD2 scanner.
Will this code fail an emissions test?
Yes. If the Check Engine Light is on due to the P0718 code, your Ram will automatically fail an OBD2 plug-in emissions or smog test.
What should I check first for P0718?
Check fluid level and condition when the vehicle design allows it. Scan transmission module data, not only generic engine codes. Look for speed sensor, solenoid, and electrical codes before assuming internal transmission failure.
Join the Discussion
Repair Estimate
Fuse, connector, wiring, cleaning, or basic inspection
Internal transmission repair or module programming after electrical checks
Includes parts and labor. May vary by location.
Electrical repairs may be moderate; internal transmission repairs can be expensive and need professional confirmation.
DIY Difficulty
Can usually be performed at home with basic hand tools.