LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2012 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0717-Input Speed Sensor 1 Circuit No Signal >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

Possible Causes 
(T72) SENSOR SUPPLY VOLTAGE CIRCUIT OPEN
(T70) INPUT SPEED SENSOR 1 (N2) SIGNAL CIRCUIT OPEN
(T70) SPEED SENSOR 1 (N2) SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT
(T13) SENSOR GROUND CIRCUIT OPEN
(T13) SENSOR GROUND CIRCUIT SHORTED TO ANOTHER CIRCUIT
(T70) SPEED SENSOR 1 (N2) SIGNAL CIRCUIT SHORTED TO GROUND
(T13) SENSOR GROUND CIRCUIT SHORTED TO GROUND
SPEED SENSOR 1 (N2)
TRANSMISSION CONTROL MODULE (TCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .