2020 Corvette: Service Bulletin: #PIP5757A: Service Engine Soon Light/Message with DTCs P1967 or P1968 in the TCM - (Nov 2, 2020)
Estimated Reading Time: 1 Minutes#PIP5757: Service Engine Soon Light/Message with DTCs P1967 or P1968 in the TCM - (Oct 13, 2020)
| Subject: | Service Engine Soon Light/Message with DTCs P1967 or P1968 in the TCM |
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Brand: |
Model: |
Model Year: |
VIN: |
Engine: |
Transmission: | ||
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Chevrolet |
Corvette |
2020 |
All |
All |
All |
M1L |
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Involved Region or Country |
North America |
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Condition |
Service engine tell-tale or message with stored TCM DTCs or P1967 and or P1968 |
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Cause |
TCM Software anomaly |
Some customers may comment on a service engine telltale, reduced engine power message with no noticeable performance issues. When scanning the vehicle for DTCs the technician may find P0700 stored in the ECM and P1967, P1968 stored in the TCM. If there are other DTCs in the TCM diagnose those first as per service information.
If only DTCs P1967 or P1968 are set, then reprogram the transmission control module with the latest available software.
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Version |
2 |
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Modified |
10/12/2020 - Created on. 11/02/2020 - Updated repair information |