Error code
OBD2 P0957
OBD2P0957
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Auto Shift Manual Mode Circuit Low.
Severity
moderateCan drive, but shifting may be affected and performance could suffer.
Summary
P0957 indicates an issue with the Auto Shift Manual (ASM) mode circuit being too low in voltage, typically related to wiring or electrical components near the transmission control module.
Common Causes
- Wiring issues
- Poor connection
- Short to earth
- Faulty ECM/PCM/TCM
Fixes
FAQ
What does P0957 mean?
P0957 indicates a low voltage issue with the Auto Shift Manual (ASM) mode circuit, which is related to transmission control.
How do I fix P0957?
Fixing P0957 typically involves checking and repairing wiring issues or replacing faulty electrical components near the TCM. Professional diagnosis may be required.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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