P0721 - Output Shaft Speed Sensor Circuit Range/Performance
P0721 - OUTPUT SHAFT SPEED SENSOR CIRCUIT RANGE/PERFORMANCE
| Description: | This DTC sets when the OSS sensor signal input exceeds the calibrated threshold or has excessive electrical noise. The OSS signal is very sensitive to electrical noise. This electrical noise distorts the OSS input to the PCM. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the routing of the OSS wiring harness. Check the OSS wiring and the OSS connector for damage. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Manual Transmission | GO to Pinpoint Test DP . | ||
| Automatic Transmission | Refer to the Service Information, Automatic Transmission, Diagnostic Trouble Code (DTC) Index to continue diagnosis. | ||