Common Symptoms
- Check Engine Light or Transmission warning light illuminated
- Harsh or erratic shifting between gears
- Transmission slipping or delayed engagement
- Vehicle stuck in limp mode or fail-safe
- Poor acceleration or lack of power
- Transmission may not shift out of lower gears
Most Likely Root Causes
- Low or contaminated transmission fluid
- Faulty transmission control module or internal TCM fault
- Damaged wiring harness or corroded connectors between TCM and transmission
- Failed transmission range sensor or shift solenoid
- Mechanical transmission internal damage or wear
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Component Location
The transmission control module is typically mounted on or near the transmission case, or inside the engine bay near the firewall.
Manufacturer Notes
P0701 is often a general code that requires retrieval of manufacturer-specific transmission codes for proper diagnosis and may require dealer-level scan tools.
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