LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Transmission Control Module (TCM) - DTCS P1B14-00 To U1477-00) >> DTC Troubleshooting >> P1D78-00-Limp Home Mode Solenoid Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
SOLENOID SUPPLY 1 CIRCUIT OPEN
SOLENOID SUPPLY 1 CIRCUIT SHORTED TO GROUND
LIMP HOME MODE SOLENOID CIRCUIT OPEN
LIMP HOME MODE SOLENOID CIRCUIT SHORTED TO GROUND
LIMP HOME MODE SOLENOID CIRCUIT SHORTED TO VOLTAGE
LIMP HOME MODE SOLENOID
TRANSMISSION CONTROL MODULE (TCM)

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