Error code
OBD2 P0739
OBD2P0739
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
TCM Engine Speed Output Circuit High.
Severity
moderateCan drive but should address the issue soon to prevent further problems.
Summary
P0739 indicates that there is an issue with the TCM (Transmission Control Module) engine speed output circuit, which may be sending incorrect or high voltage signals.
Common Causes
- Wiring issues
- Faulty Transmission Control Module (TCM)
Fixes
FAQ
What does P0739 mean?
P0739 indicates a problem with the TCM engine speed output circuit, which is responsible for sending signals related to engine speed.
How do I fix P0739?
Fixing P0739 typically involves checking and repairing wiring issues or replacing the faulty Transmission Control Module (TCM).
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
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- P0701Transmission Control System Range/Performance
- P0702Transmission Control System Electrical
- P0703Brake Switch 'B' Circuit
- P0704Clutch Switch Input Circuit Malfunction
- P0705Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- P0706Transmission Range Sensor Circuit Range/Performance
- P0707Transmission Range Sensor Circuit Low
- P0708Transmission Range Sensor Circuit High
- P0709Transmission Range Sensor Circuit Intermittent
- P0710Transmission Fluid Temperature Sensor 'A' Circuit
- P0711Transmission Fluid Temperature Sensor 'A' Circuit Range/Performance