Time Lag Test - Suzuki Swift Sport 2004 Service & Repair Manual

Troubleshooting
Condition
Lower than standard level
in both "D" and "R" range
Higher than standard
level in "D" range
Higher than standard
level in "R" range
Higher than standard
level in both "D" and "R"
range

Time Lag Test

This test is to check conditions of clutch, brake and fluid pressure. "Time lag" means time elapsed since select lever is
shifted with engine idling till shock is felt.
1) With chocks placed before and behind front and rear wheels respectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from "N" to "D" range and measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from "N" to "R" range.
Gear shifting time lag
"N" → "D": Less than 0.7 sec.
"N" → "R": Less than 1.2 sec.
NOTE
• When repeating this test, be sure to wait at least one minute after select lever is shifted back to "N"
range.
• Engine should be warmed up fully for this test.
• Repeat test 3 times and take average of those data for final time lag data.
Possible cause
Engine output torque failure
Faulty one-way clutch of torque
converter
Malfunction of pressure control solenoid
valve (Low line pressure)
Faulty valve body component
Slippery forward clutch
Faulty one-way No.2 clutch
Leakage from "D" range fluid pressure
circuit
Malfunction of pressure control solenoid
valve (Low line pressure)
Faulty valve body component
Slippery reverse clutch
Slippery 1st and reverse brake
Leakage from "R" range fluid pressure
circuit
Malfunction of pressure control solenoid
valve (Low line pressure)
Faulty valve body component
Clogged oil strainer
Faulty oil pump
Leakage from both "D" and "R" range
fluid pressure circuit
Automatic Transmission/Transaxle:
Correction / Reference Item
Inspect and repair engine.
Replace torque converter.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Replace.
Inspect. If NG, replace.
Replace valve body assembly.
5A-31
S7RS0B5104015