P0731 SATURN - Gear 1 Incorrect Ratio
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
When is the code detected?
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting
P0731 SATURN Description
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
Need more help?
P0731 SATURN CommentsHelp us improve itimaster.ru. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0731 Saturn code? Have you replaced any parts?
Any information is appreciated. Thanks