Component Test - Gear Neutral Position Sensor

Refer to STARTING SYSTEM for schematic and connector information.

1. 1.
   
   Inspect the gear neutral position sensor for the following:

• physical damage
• incorrect or loose mounting. REFER to: Neutral Position Sensor - 2.3L EcoBoost (257kW/350PS) - MI4
• disconnected or loose electrical connector
• corrosion

1. 2.
   
   REPAIR as necessary or INSTALL a new neutral position sensor. REFER to: Neutral Position Sensor - 2.3L EcoBoost (257kW/350PS) - MI4

1. 3.
   
   Disconnect the gear neutral position sensor connector C3730

1. 4.
   
   Inspect the gear neutral position sensor and gear neutral position sensor connector for the following:

• physical damage
• corrosion (install new connector or terminals - clean module pins)
• damaged or bent pins - install new terminals/pins
• pushed-out pins - install new pins as necessary

1. 5.
   
   REPAIR as necessary.

1. 6.
   
   Connect and correctly seat the gear neutral position sensor connector C3730

1. 7.
   
   Using a diagnostic scan tool, view the PCM Parameter Identifications (PIDs)

   TR_NTRL_RAW  and

   TR_NTRL_RAW2  .

1. 8.
   
   While viewing the Parameter Identifications (PIDs), place the shift lever into each position.

1. 9.
   
   Record the readings and compare:

Gear Position	TR_NTRL_RAW	TR_NTRL_RAW2
Neutral	47 % to 53 %	37% to 42%
1st	13% to 23 %	12% to 20%
2nd	76% to 86%	59% to 67%
3rd	14% to 24%	13% to 20%
4th	76% to 85%	59% to 67%
5th	14% to 24%	13% to 20%
6th	76% to 86%	59% to 67%
Reverse	14% to 24%	13% to 20%

1. 10.
   
   If the readings did not change or were out of specification, continue with inspection.

The gear neutral position sensor reads a magnet attached to the selector mechanism inside the transmission. If this magnet is loose or missing the sensor will not read correctly

1. 11.
   
   Inspect the selector mechanism for incorrect or loose mounting or excessive play. REFER to: Selector Mechanism - 2.3L EcoBoost (257kW/350PS) - MI4 Correct installation or replace as necessary.

1. 12.
   
   If the readings did not change the magnet may be missing or broken. Remove the selector mechanism and inspect the magnet. REFER to: Selector Mechanism - 2.3L EcoBoost (257kW/350PS) - MI4 Repair as necessary.

1. 13.
   
   If, after inspecting the selector mechanism, it is suspected the magnet has broken off of the selector shaft, transmission disassembly may be required.