P0918 Fault Code

Gear Shift Position Circuit Intermittent

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0918 fault code indicates an issue with the gear shift position circuit that is intermittent. This code typically refers to problems in the communication between the gear shift position sensor and the Engine Control Module (ECM). It can lead to incorrect gear selections or issues with the transmission operation.

What are the symptoms of the P0918 code?

Symptoms that may accompany the P0918 code are:

• Inability to shift gears properly.
• Erratic shifting behavior.
• Transmission slipping or engaging unexpectedly.
• Check Engine Light illuminated on the dashboard.
• Delay in gear engagement when shifting.

What causes the P0918 code?

Common causes of the P0918 code include:

• Faulty gear shift position sensor.
• Bad connections or corroded wiring in the circuit.
• Malfunctions in the Engine Control Module (ECM).
• Issues with the transmission control module (TCM).
• Loose or damaged connectors related to the gear shift position sensor.

How to fix P0918?

To resolve the P0918 code, consider taking the following steps:

• Inspect the gear shift position sensor for damage and test its functionality.
• Check all related wiring and connectors for corrosion, damage, or loose connections.
• Ensure that the ECM and TCM are functioning properly and that any software updates have been applied.
• If necessary, replace the defective components, such as the gear shift position sensor or wiring harness.