* Trying to troubleshoot a problem with the transmission or starting system? There are several safety interlocks that prevent starting the vehicle unless the transmission is in park (or neutral, depending on the transmission type). These interlocks involve switches within the transmission itself, and possibly a neutral safety switch. However, Jeep typically refers to them as Neutral Safety Switch or components within the Transmission Range Sensor (TRS) or similar.
* Working on a tow setup? Again, the same transmission safety interlocks apply. Improper towing can damage the transmission if these aren't considered.
* Installing an aftermarket accessory that requires a neutral signal? This accessory will need to connect to the appropriate wire in the vehicle's wiring harness, often coming from the transmission control module (TCM).
To help me provide the correct information, please tell me:
* The year of your Jeep Laredo: This is crucial as the systems and their locations vary by year.
* The specific problem you're experiencing: Are you having trouble starting the vehicle? Is a specific accessory not working correctly? Are you preparing to tow the vehicle?
With more information, I can provide more specific and accurate guidance.