Oil Pressure Test Evaluation
Low In "D", "S", "L" & "R" - Worn oil pump. Fluid leaking from oil pump, control valve body or transaxle case. Pressure regulator valve stuck.
Low In "D" & "S" - Fluid leaking from hydraulic circuit of forward clutch.
Low In "R" - Fluid leaking from hydraulic circuit of low and reverse brake.
High In "D", "S", "L" & "R" - Throttle valve stuck. Throttle modulator valve stuck. Pressure regulator valve stuck.