What is P1718 : Engine Error Code Causes Explained
The P1718 engine error code indicates an issue with the transmission range sensor or gear position circuit. This blog explains its common causes, typical symptoms, and practical troubleshooting methods to help identify and fix the problem.
How to Identify a DTCs Number
The P1718 Engine Error Code points to a communication fault between the Transmission Control Module (TCM) and the Engine Control Module (ECM).
Understand, these trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
To identify a DTC’s number like P1718, you need to connect an OBD-II scanner to the vehicle’s diagnostic port, usually located under the dashboard. The scanner will read the error code stored in the vehicle’s memory and display it as a number and sometimes a brief description, which you can then use to understand and troubleshoot the specific issue.
CAUSES: Pl718 Engine Code
- Wiring and Connector Issues:
Inspect the wiring harness connecting the TCM to the ECU for any signs of damage, such as cuts, fraying, or corrosion. - TCM Problems:
The TCM itself might be malfunctioning, preventing proper communication. - Battery and Grounding Issues:
Ensure the battery is providing stable and sufficient voltage to the TCM and other modules. Low voltage can cause communication problems. - Other Potential Causes:
In some cases, a fault with the gear selector sensor or its wiring can cause a Pl 718 code, as the signal from the sensor is used in the communication process.
Risk Level of P1718 Error Code:
P1718 is a High-Risk Level engine issue that needs immediate repair. This code indicates transmission communication or performance faults that can cause harsh shifting, power loss, or unsafe driving. To ensure vehicle safety, the problem must be diagnosed and rectified immediately.
Common Car Brands Affected by P1718 Code:
The P1718 engine error code is commonly found in the following list.
- Forester
- Outback
Video: P1718 Engine Error code
FAQ’s
What is the P1718 Engine Error Code?
The P1718 Engine Error Code points to a communication fault between the Transmission Control Module (TCM) and the Engine Control Module (ECM).
What causes the P1718 Engine Error Code?
The P1718 Engine Error Code is usually caused by faulty Wiring and Connector Issues, TCM Problems, Battery and Grounding Issues, Other Potential Causes or issues in the TCM/ECM.
What’s the risk level of P1718 Engine Error Code?
The risk level of the P1718 Engine Error Code is High, as it can lead to transmission malfunctions, rough shifting, and potential drivability problems.
Which vehicles are affected by the P1718 Engine Error Code?
The P1718 Engine Error Code often appears in vehicles with electronically controlled transmissions, including Forester and Outback.