The P0918 OBD-II code indicates an issue with the gear shift position circuit, specifically that the signal being sent from the shift lever position sensor to the powertrain control module (PCM) is intermittent or implausible.
What Does the P0918 Code Mean?
The P0918 code is triggered when the PCM detects a problem with the gear shift position circuit. This can occur in vehicles equipped with manual transmissions, where a sensor is mounted on the shift lever to inform the PCM about the current gear. If the sensor sends an incorrect signal, the P0918 code is stored in the vehicle’s onboard diagnostic system.
What Causes the P0918 Code?
Several factors can lead to the activation of the P0918 code, including:
- Failure of the shift lever assembly
- Transmission Control Module (TCM) failure
- Wiring issues, such as damaged or corroded connections
What Are the Symptoms of the P0918 Code?
Symptoms associated with the P0918 code may include:
- Difficulty shifting gears
- Transmission slipping or erratic behavior
- Warning lights illuminated on the dashboard
How Serious Is the P0918 Code?
The P0918 code is considered moderate in severity. While it may not pose an immediate threat to the vehicle’s safety or functionality, it is important to address it promptly to prevent further complications or damage to the transmission system.
How to Diagnose the P0918 Code
A proper diagnosis of the P0918 code should include:
- Using an OBD-II scanner to retrieve the code and any other related codes
- Inspecting the shift lever assembly and wiring for damage or disconnections
- Testing the shift lever position sensor for proper functionality
- Verifying the operation of the Transmission Control Module (TCM)
Common Repairs for the P0918 Code
Repairs for the P0918 code may involve:
- Replacing a faulty shift lever assembly
- Repairing or replacing damaged wiring or connectors
- Replacing the Transmission Control Module (if necessary)
How Much Does It Cost to Fix the P0918 Code?
The cost to fix the P0918 code can vary widely based on the specific repairs needed. On average, repairs may range from $100 to $1,000 depending on whether wiring issues need to be addressed or if components like the shift lever assembly or TCM require replacement.
Can I Fix the P0918 Code Myself?
While some DIY enthusiasts may be able to address minor wiring issues or perform a sensor replacement, diagnosing and repairing the P0918 code often requires specialized tools and expertise. It is advisable to consult with a certified shop for a thorough diagnosis and repair to ensure proper resolution of the issue.
