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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (8HP75 Automatic Transmission - DTCS P1DB7-00 To U0401-00) >> DTC Troubleshooting >> U0074-00-Dedicated Powertrain (D-Pt) Can Bus Off >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 Jeep Grand Cherokee L. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
PRIVATE CAN BUS (+) CIRCUIT OPEN OR HIGH RESISTANCE
PRIVATE CAN BUS (-) CIRCUIT OPEN OR HIGH RESISTANCE
PRIVATE CAN BUS (+) CIRCUIT SHORT TO GROUND
PRIVATE CAN BUS (-) CIRCUIT SHORT TO GROUND
PRIVATE CAN BUS (+) CIRCUIT SHORT TO ANOTHER CIRCUIT
PRIVATE CAN BUS (-) CIRCUIT SHORT TO ANOTHER CIRCUIT
ELECTRONIC SHIFT MODULE (ESM)
TRANSMISSION CONTROL MODULE (TCM) ASSEMBLY

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