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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1861 (Automatic Transmission - 5AT - DTC P0218 To DTC P0761) >> DTC P0733 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3:  This step tests for low fluid level, which may cause slipping and result in an incorrect gear ratio.
  2. 4:  This step verifies that the correct gear ratios occur for commanded gears.
  3. 5:  This step tests for low line pressure.
DTC P0733

Step Action Values Yes No
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Visually inspect the transmission cooling system for fluid leaks.
  2. Repair any leaks as necessary. Refer to Fluid Leak Diagnosis .
Did you find and correct a condition?
- Go to Step 8  Go to Step 3 
Did you perform the Transmission Fluid Checking Procedure? - Go to Step 4  Go to Transmission Fluid Checking
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. IMPORTANT: Before clearing the DTC, use the scan tool in order to record the Failure Records. Using the Clear Info function erases the Failure Records from the PCM.
  4. Record the DTC Failure Records.
  5. Clear the DTC.
  6. Use the scan tool snapshot mode in order to record Gear Ratio and Gear Slip Ratio.
  7. Drive the vehicle in 3rd gear, with the TP greater than 10% and the vehicle speed greater than 12 km/h (8 mph) for 20 seconds or greater.
  8. Record the Gear Ratio and Gear Slip Ratio.
Is the Gear Slip Ratio within the specified range?
1.2:1-0.75:1 Go to Diagnostic Aids Go to Step 5 
Did you perform the Line Pressure Check Procedure? - Go to Step 6  Go to Line Pressure Check
6
  1. Inspect the 3rd clutch plates for the following conditions:
  2. Repair any of the above items as necessary.
Did you complete the repair?
- Go to Step 7  -
7
  1. Change the transmission fluid and filter. Refer to Transmission Fluid Replacement .
  2. Inspect the transmission fluid for the correct level.
  3. Add new fluid as necessary.
Did you complete the above procedures?
- Go to Step 8  -
8 Perform the following procedure in order to verify the repair:
  1. Select DTC.
  2. Select Clear Info.
  3. Drive the vehicle in 3rd gear, with the throttle greater than 10%, in order to obtain a gear ratio of 1.2:1-0.75:1 for 20 seconds.
  4. Select Specific DTC.
  5. Enter DTC P0733.

Has the test run and passed?
- Go to Step 9  Go to Step 2 
9 With the scan tool, observe the stored information, capture info and DTC info.
Does the scan tool display any DTCs that you have not diagnosed?
- Go to Diagnostic Trouble Code (DTC) List - Vehicle System OK