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Home >> Cadillac >> 1995 >> Eldorado Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Parameters >> Pcm Specific Override Codes >> PS20: Transaxle Pressure Control
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PS20: Transaxle Pressure Control

  1. P20 may be used to override control of the transaxle pressure control solenoid, thus overriding transaxle line pressure. When PS20 is selected, DIC display will alternate between "--" for one second and commanded transaxle line pressure (in psi) for 5 seconds until either the WARMER or COOLER button is depressed. PS20 override operates differently depending the gear selector position.
  2. Ensure gear selector is in Park or Neutral, vehicle speed is at zero, A/C clutch disabled, and engine speed at 1150-1250 RPM. WARMER button may be used to increment commanded line pressure and COOLER button to decrement commanded line pressure. Current commanded line pressure will be displayed for the duration of the override.
  3. With gear selector not in Park or Neutral, depressing the WARMER button will increment commanded line pressure. Depressing COOLER button will have no effect. Current commanded line pressure will be displayed for the duration of the override.