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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1274 (DTCS C1400-00 To P1731-00 - As69RC Automatic Transmission - 3500 Hd) >> DTC Troubleshooting >> P077C-00-Output Shaft Speed Sensor Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN
OUTPUT SPEED SENSOR VOLTAGE SUPPLY CIRCUIT OPEN
OUTPUT SPEED SENSOR VOLTAGE SUPPLY CIRCUIT SHORTED TO GROUND
OUTPUT SPEED SENSOR
TRANSMISSION CONTROL MODULE (TCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  AS69RC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .  .