P0726moderate severityPowertrain
Engine Speed Input Circuit Range/Performance
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The engine speed signal at the transmission controller is present but out of the expected range. Shift and lockup timing depend on an accurate RPM value.
Symptoms
- Poor shift quality
- Torque converter shudder
- Check engine light on
Common causes
- Faulty engine speed sensor
- Signal interference or noise
- Wiring issue to TCM
- Faulty PCM/TCM
Diagnostic steps
- Retrieve codes and freeze frame
- Compare RPM signal against actual engine speed
- Inspect wiring for damage or noise sources
- Replace sensor if reading is off
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P0005
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P0006
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P0008
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P0009
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P0026
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P0027
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P0028
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P0029
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2
P0033
Turbocharger/Supercharger Bypass Valve Control Circuit