P0731 NISSAN Code - 1st. Gear Malfunction
|P0731 NISSAN code possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
|How is the P0731 NISSAN code repair?Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
|P0731 NISSAN code tech notesThere are Factory Service bulletins for the following Nissan models:
1995-1996 Nissan Maxima
1995-1997 Nissan Sentra/200SX
1996-1997 Nissan Truck
1995-1997 Nissan Altima
1996-1997 Nissan Pathfinder
1995-1996 Nissan 240SX
1996-1997 Nissan Quest
Nissan Factory Service Bulletin OBDII Code P0731
2002 Nissan Sentra
2002 Nissan Altima
2002 Nissan Sentra and Altima Factory Service Bulletin OBDII Code P0731
|What is the cost to diagnose the P0731 NISSAN code
Labor: 1.0The cost to diagnose the P0731 NISSAN code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|When is the P0731 NISSAN code detected?P0731 is detected when A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
|What are P0731 NISSAN code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting
|What is P0731 NISSAN code meaning?This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:
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 information with the P0731 NISSAN code?Need more information on how to fix the P0731 NISSAN code?
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