Fault-Code Library · Automatic transmission
P0793: Intermediate shaft speed sensor circuit no signal
The transmission controller cannot see the expected intermediate shaft speed signal.
Common symptoms
- •Transmission warning
- •Shift flare
- •Limp mode
- •Delayed engagement
Likely causes
- •Internal speed sensor fault
- •Mechatronics or conductor-plate issue
- •Wiring problem
- •Contaminated fluid affecting sensor signal
First checks
- •Read transmission live speed data
- •Check related ratio and shift codes
- •Review fluid service and temperature-dependent behavior
Important
This code can point inside the gearbox electronics, so avoid buying without specialist diagnosis.
A fault code identifies a detected condition, not a failed part. Confirm manufacturer-specific subcodes and live data.
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