P1DAF

P1DAF-INCOMPATIBLE LIMP IN ACTION REQUESTED

For a complete wiring diagram Refer to the Wiring Information.

Theory of Operation

The purpose of the diagnostic is to determine unique failure situations when multiple failures requiring conflicting limp-in actions occur. If conflicting limp-in actions are commanded, the mechanical limp-home mode is activated as the final limp-in action.

- When Monitored:
When the ignition switch is turned to the run position.

- Set Condition:
The failure is detected when multiple failures requiring conflicting limp-in actions occur.





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

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

Are any TCM 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 PCM DTCS ARE PRESENT
1. With the scan tool, read PCM DTCs.

Are any PCM 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 A (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.