The Transmission Position Sensor, also known as the Transmission Range Sensor or Park Position Sensor, is a critical electronic component that monitors the gear selector position (P, R, N, D) and transmits this information to the Transmission Control Module (TCM).
 
This data allows the control system to:
Enable engine start only in Park or Neutral
Command correct gear engagement
Maintain safe and reliable transmission operation
 
Common Failure Symptoms
A faulty transmission position sensor may cause one or more of the following issues:
Vehicle will not start (no Park/Neutral signal detected)
Transmission will not engage Drive or Reverse
Gear engagement does not match the selected position
Intermittent or inconsistent shifting behavior
Transmission fault or warning messages
 
Key Features
Designed specifically for ZF 8HP automatic transmissions
Accurate gear position detection
Restores proper start and shift logic
Direct replacement for the original sensor
Tested for signal stability and durability
 
Important Notice
A failed transmission position sensor can leave the vehicle unable to move, potentially leading to towing and additional repair costs. Early replacement helps prevent unexpected breakdowns and ensures safe operation.