dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

Relays and Modules - Starting and Charging > < Neutral Start & Back-Up Lamp Switch|Page 4394
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Inhibitor Switch: Description and Operation

Electrical Connections, 3 Speed Automatic

Automatic Transmission Electrical Connections (4 Speed)

Note:

Found on vehicles with automatic transaxles only. Sometimes called the neutral safety switch, or PRNDL switch.

Location

Switch mounted in transaxle, (automatic only).

Purpose

The Control Module uses this input to control:

^ Fuel Injector Pulse Width
^ Ignition Timing Advance
^ Idle Speed

Operation

Switch sends a signal to the PCM, indicating whether transmission is in, NEUTRAL, PARK, or a drive gear. 

Relays and Modules - Starting and Charging > < Neutral Start & Back-Up Lamp Switch|Page 4394