P150C
Transmission Control Module Engine Speed Request Signal Message Counter Incorrect
P150C is an OBD-II diagnostic trouble code meaning: Transmission Control Module Engine Speed Request Signal Message Counter Incorrect. Common causes: damage to the wiring harness between the tcm and ecm, transmission control module malfunction. Estimated repair cost: $56–167.
Symptoms
- Rough engine operation
- Gear shifting problems
- Check Engine Light Illuminates
- Reduced engine power
- Dips during acceleration
Causes
- Damage to the wiring harness between the TCM and ECM
- Transmission control module malfunction
- TCM power or ground problems
- Software error in control module
- Corrosion or poor contact in connectors
How to Fix
- Check the integrity of the wiring harness between the TCM and ECM
- Check connections and contacts in connectors
- Scan the transmission control module for errors
- Update control module software
- If necessary, replace the transmission control module
Related codes
FAQ
What does the P150C code mean?
P150C is an OBD-II diagnostic trouble code that indicates: Transmission Control Module Engine Speed Request Signal Message Counter Incorrect
What causes a P150C error code?
The most common causes of P150C include: Damage to the wiring harness between the TCM and ECM; Transmission control module malfunction; TCM power or ground problems; Software error in control module.
How do I fix a P150C diagnostic trouble code?
To fix P150C: Check the integrity of the wiring harness between the TCM and ECM. Check connections and contacts in connectors. Scan the transmission control module for errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P150C?
Yes, but get it checked soon
How much does it cost to fix P150C?
The estimated repair cost for P150C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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