U1467

U1467-IMPLAUSIBLE DRIVER SHIFT REQUEST SIGNAL RECEIVED ON CAN AND D-PT CAN

For a complete wiring diagram Refer to the Wiring Information.

Theory of Operation

The purpose of the diagnostic is to check the validity of the selected driving position. The driving position is received from two different CAN BUS signals. If both signals are invalid because of any of the monitored CAN failures (time-out, checksum, alive counter, signal invalid) this fault is set to indicate that the driving position can not be determined.

- When Monitored:
When the ignition switch is turned to the run position and calibrated amount of time has expired.

No CAN BUS DTCs and ready to transmit.

Battery voltage is above a calibrated threshold.

- Set Condition:
The failure is detected by the Transmission Control module (TCM) if the CAN monitoring detects any failure on both driving position signals of the two CAN BUS signals.





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

1. CHECK FOR TCM CAN BUS DTCS
1. With the scan tool, read TCM DTCs.

Are any TCM CAN BUS DTCs present?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.

No

- Go To 2

2. CHECK IF ESM DTCS ARE PRESENT
1. With the scan tool, read ESM DTCs.

Are any ESM DTCs present?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.

No

- Using the schematics as a guide, check the Transmission Control Module Assembly (TCMA) terminals for corrosion, damage or terminal push out. If no problems are found, replace and program the TCMA. Valve Body - Removal.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.