200 saturn sl1 no reverse slipping in 2nd trouble code p0732

well; all those p07xx codes are hard transmission errors
or shifter errors.
check levels yet on the tranny, not look like tar or smell burnt?
do it by the book do not guess, how. or horrible errors happen.

tranny 42RLE or 45RFE used .then.
P0731, means 1st gear ratio wrong. (means slipping)
732 means 2nd gear slips.
734 means 4th gear slips.

the causes are many
why are you not asking any shop to diagnose it
box leaks and leaked out ATF , and is way too low.
box pump is bad, weak.

he will scan it first . and even see more errors than you saw.

no miles on car told 20 year old and 250,000 miles on it ,or more?

Gear 2 Incorrect Ratio Our emissions expert has put together the following information about the P0732 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code

• OBD II P0732

Fault Code Definition

• Gear 2 Incorrect Ratio

What does this mean?
The purpose of the automatic transmission is to match the engine's optimum power and torque characteristics to the driver's desired rate of acceleration and speed by auto-selecting different gear ratios or 'speeds' to power the wheels.
Code P0732 When the code P0732 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is seeing a greater than a specified RPM difference between the rotational speed of the Input RPM Sensor and the Transmission Output RPM Sensor when the vehicle is in 2nd gear. This can occur during shifting or when driving at steady speeds. It often implies that the transmission is slipping.
Symptoms

• Check Engine Light will illuminate
• Vehicle will not shift properly
• Decrease in fuel economy
• In unusual cases, there are no adverse conditions noticed by the driver
• In some cases, there may be performance problems, such as dying when coming to a stop after driving on the freeway and/or misfire-like symptoms

Common Problems That Trigger the P0732 Code

• Defective 2nd gear shift solenoid
• Defective 2nd gear related gear set or clutch pack
• Defective Engine Coolant Temperature Sensor
• Defective Valve Body
• Dirty transmission fluid that restricts the hydraulic passages

Common Misdiagnoses

• Engine Misfire problem
• Internal Transmission problem
• Driveline problem

Polluting Gases Expelled

• HCs (Hydrocarbons): Unburned droplets of raw fuel that smell, affect breathing, and contribute to smog
• CO (Carbon Monoxide): Partially burned fuel that is an odorless and deadly poisonous gas
• NOX (Oxides of Nitrogen): One of the two ingredients that, when exposed to sunlight, cause smog

P0732 Diagnostic Theory for Shops and Technicians
When diagnosing a P0732 code, it is important to record the freeze frame information and then to duplicate the code setting conditions with a test drive. Pay close attention to the engine load, throttle position, RPM, and road speed because a P0732 can be difficult to detect.
One should monitor the RPM input speed and compare that to output speed RPM on a smooth, flat surface after the vehicle is warmed up and the fuel system is in a closed loop. Monitor how the 2nd gear solenoid configuration responds to an increased amount of throttle. The 2nd gear related solenoid should stay in 2nd gear and the transmission should NOT slip.

PO766

Possible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid D valve
- Shift solenoid D valve harness or connectors
- Shift solenoid D valve circuit is open or shorted
Tech notesWhen the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced. When is the code detected?The P0766 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off P0766 Description Shift solenoid valve D is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position.

DTC P0732 sets when 2nd clutch still slips after the PCM has commanded high main line pressure
DTC P0734 sets when 4th clutch still slips after the PCM has commanded high main line pressure.
DTC P0733 sets when 3rd clutch still slips after the PCM has commanded high main line pressure.
The powertrain control module (PCM) uses the crankshaft position (CKP) sensor, input speed sensor (ISS) and output speed sensor (OSS) to determine engine speed, input shaft speed and output shaft speed. These sensor readings are used to determine the current gear ratio and RPM slip across the torque converter. The PCM uses this information from the sensors to determine if the commanded gear matches the actual gear. During normal driving conditions, the PCM will adapt main line pressure via the pressure control (PC) solenoid to prevent slipping and harsh shifts. Shift solenoid 2 is used to apply or release second gear clutch. The PCM controls 2nd gear by controlling the ground for shift solenoid 2. The PCM will turn the solenoid Off (open the driver circuit) when second gear is commanded On to apply 2nd clutch. Shift solenoid 2 is supplied ignition voltage from the fuel pump relay whenever the PCM commands the fuel pump relay On.
Do you know how to test main line pressure ? Also , with the valve body off air check clutch packs . Do you know how to do that ? How many miles on the trany ?

Auto Trans Rebuild Chapter 8 Air Check
Making sure clutch packs are good .

sl1 and ion are NOT the same car the only thing that will work from the ion are the rims sorry for the bad news

P0732 FORD - Incorrect Second Gear Ratio
Transmission in second gear and the ECM detected an incorrect gear ration. 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 (2nd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit

Tech notes
Start by inspecting the transmission fluid level and condition, and change fluid if necessary.


Hope helps.

P0732 - Improper Ratio for Second Gear.
P0734 - Improper Ratio for Fourth Gear.

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as follows:

Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from ECM C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (2nd and 4th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

This malfunction will be caused when shift solenoid valve B is stuck open.

Gear positions supposed by TCM are as follows. In case of gear position with no malfunctions: 1 , 2, 3 and 4 positions In case of gear position with shift solenoid valve B stuck open: 4* , 3, 3 and 4 positions to each gear position above.

Symptoms: Engine Light ON (or Service Engine Soon Warning Light)

Diagnostic trouble code A/T 2ND GR FNCTN with CONSULT-II or P0732 without CONSULT-II is detected when A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.

Possible Causes:
- Shift solenoid valve B
- Each clutch
- Hydraulic control circuit


Check it and tell us news.

Trouble Code: P0732 (4.6L V8 VIN W Auto)
Incorrect Second Gear Ratio Print this code data Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• CCM Details

Trouble Code Conditions:
Engine started, vehicle operating with 2nd Gear commanded "on", and the PCM detected an incorrect 2nd gear ratio during the test.

Possible Causes:

• 2nd Gear solenoid harness connector not properly seated
  
• 2nd Gear solenoid signal shorted to ground, or open
  
• 2nd Gear solenoid wring harness connector is damaged
  
• 2nd Gear solenoid is damaged or not properly installed
  

Refer to the mechanical section to diagnose transmission concerns


Trouble Code: P0732 (5.4L V8 VIN L Auto)
Incorrect Second Gear Ratio Print this code data
Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• CCM Details

Trouble Code Conditions:
Engine started, vehicle operating with 2nd Gear commanded "on", and the PCM detected an incorrect 2nd gear ratio during the test.

Possible Causes:

• 2nd Gear solenoid harness connector not properly seated
  
• 2nd Gear solenoid signal shorted to ground, or open
  
• 2nd Gear solenoid wring harness connector is damaged
  
• 2nd Gear solenoid is damaged or not properly installed
  

Refer to the mechanical section to diagnose transmission concerns.

pull trans side cover & replace input & output shaft nuts retorque install new gasket top off fluid

The simple answer is that there are two loose nuts in the transmission.

The output shaft nuts are loose. The are behind a cover that you can see through the driver's side wheel well.

What this code means is the trans is slipping, the most likely cause is internal parts failure or shift solenoid issue for 2nd gear, but based on what I know of this code you will end up getting the trans overhauled.