Time Lag Test: Troubleshooting

Condition	Possible Cause	Action
"N" → "D" time lag exceeds specification	Malfunction of pressure control solenoid valve (Low line pressure)	Inspect. If NG, replace valve body assembly .
	Malfunction of primary regulator valve (Low line pressure)	Replace valve body assembly .
	Clogged oil strainer	Replace .
	Faulty oil pump	Inspect. If NG, replace .
	Faulty forward clutch	Inspect. If NG, replace .
	Leakage from "D" range fluid pressure circuit	Overhaul or replace valve body assembly .
"N" → "R" time lag exceeds specification	Malfunction of pressure control solenoid valve (Low line pressure)	Inspect. If NG, replace valve body assembly .
	Malfunction of primary regulator valve (Low line pressure)	Replace valve body assembly .
	Clogged oil strainer	Replace .
	Faulty oil pump	Inspect. If NG, replace .
	Faulty direct clutch	Inspect. If NG, replace .
	Faulty reverse brake	Inspect. If NG, replace .
	Leakage from "R" range fluid pressure circuit	Overhaul or replace valve body assembly .