U0074-00

U0074-00-DEDICATED POWERTRAIN (D-PT) CAN BUS OFF

For a complete wiring diagram Refer to the Wiring Information.

Theory of Operation

The Shift Lever Assembly (SLA) Electronic Shift Module (ESM) performs various internal tests to verify proper controller operation. This DTC indicates that there is an issue with the Shifter's internal processor.

- When Monitored:
Continuously with the ignition in the run position.

- Set Condition:
If the Shift Lever Assembly controller detects an invalid calibration (checksum value).





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. 8HP45 Pre-Diagnostic Troubleshooting Procedure

SHIFTER LEVER ASSEMBLY

View repair

Repair

- Using the schematics as a guide, check the Shift Lever Assembly Control Module terminals for corrosion, damage or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Shift Lever Assembly.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.