Parts
$50-3000+
P0732 — Gear 2 Incorrect Ratio
CAUTIONIs it safe to drive? The 2nd gear ratio is off — slipping or not fully engaging. Drive gently to avoid damaging the clutch pack.
What P0732 means
Same principle as P0731 but specific to 2nd gear. The TCM's measured ratio doesn't match 2nd-gear spec. Could be mechanical, solenoid, or fluid-related. Exact detail varies by make — don't assume a full rebuild without diagnosis.
Most likely causes (in order)
- Low or burnt transmission fluid
- Worn 2nd-gear clutch pack or band
- 2nd-gear related shift solenoid
- Speed sensor error
- Valve body pressure
Symptoms you might notice
- Slipping during 1st-to-2nd shift
- Flare on upshift
- Limp mode
What to check first
Check fluid first. Note exactly when the slip occurs (RPM flare on the 1-2 shift = classic 2nd clutch). A solenoid test can rule out electronics before internal work.
Repair cost & difficulty
Labor
3-20+ hr
Difficulty
Shop job