Tools Required

SA9127E Gage Bar Set

Notice: Total test running time should not be longer than 2 minutes. Otherwise, transaxle damage could occur.

Important: Keep brakes applied at all times in order to prevent unexpected vehicle motion.

Line pressures are calibrated for 2 sets of gear ranges -- Drive-Park-Neutral and Reverse. This allows transaxle line pressure to be appropriate for different pressure needs in different gear ranges

Important: The scan tool is only able to control the pressure control (PC) solenoid in Park and Neutral with the vehicle stopped. This protects transaxle clutches from extremely high or low pressure in Drive or Reverse ranges.

1. Hook up a scan tool.
2. Start the engine and set the parking brake.
3. Check for stored diagnostic trouble codes, including the diagnostic code for a pressure control solenoid.
4. Repair the vehicle if necessary. Include the following areas:

•	Inspect the fluid level.

•	Inspect the manual linkage at the transaxle.

•	Install or connect a scan tool.

5. Remove the line pressure tap plug and install the SA9127E to the transaxle.
6. Put the gear selector in Park and set the parking brake.
7. Start the engine and allow the engine to warm up at idle.
8. Access the PC Solenoid Control test on the scan tool.
9. Slowly increase the engine speed to 1,300-1,400 RPM and maintain this engine speed throughout the test.
10. Increase the PC solenoid amperage in 0.1 amp increments. Read and record the corresponding line pressure on the pressure gage. Allow the pressure to stabilize for 5 seconds after each current change.

Important: Before reinstalling the line pressure tap plug, apply LOCTITE Threadlocker 242® to the thread of the plug.

11. Remove the SA9127E and install the line pressure tap plug.

Important: The pressures in the table assume a temperature of 70°C (150°F). The pressure will vary at different temperatures.

12. Compare your data to the line pressure table.