Reverse 2 Incorrect Ratio

Check these first

• A slipping reverse clutch pack causing an incorrect ratio
• Dirty or low transmission fluid
• A stuck reverse solenoid or valve
• A failed speed sensor feeding a false ratio
• Internal transmission wear in the reverse gear set

What to do next

1. Read commanded and actual gear ratio in reverse on a scan tool
2. Check transmission fluid level and condition
3. Compare input and output speed sensor readings for a false ratio
4. Test the reverse solenoid circuit for opens and shorts
5. Overhaul the transmission if the ratio stays wrong with good sensors
6. Clear the code and retest

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