Monitor SCANTOOL Data
- Connect scan tool to data link connector (DLC).
- Engine "ON".
- Monitor the "ENGINE SPEED, INPUT SPEED SENSOR, OUTPUT SPEED SENSOR, GEAR POSITION" parameter on the scan tool.
- Perform the "STALL TEST" with gear position "2".
Specification: 2000~2700 engine RPM
* This test is possible only for "HOLD S/W" or "SPORTS MODE" applied vehicles.
OPERATING ELEMENT OF EACH SHIFTING RANGE
UD/C OD/C REV/C 2-4/B LR/B OWC P • R • • N • D1 • • D2 • • D3 • • D4 • • L • • • Stall test procedure in D2 and reason
Procedure
- Warm up the engine.
- After positioning the select lever in "D" or "ON" of the HOLD SW ( Operate UP SHIFT in case of "SPORTS MODE"), depress the foot brake pedal fully after that, depress the accelerator pedal to the maximum.
* The slippage of 2ND BRAKE can be detected by stall test in D2.
Reason for stall test
- If there is no mechanical defaults in A/T, every slippage occur in torque converter.
- Therefore, engine revolution is output, but input and output speed revolution must be "zero" due to wheel's lock.
- If 2nd brake system (2nd gear operating part) has faults, input speed revolution will be out.
- If output speed revolution is output. It means that the foot brake force is not applied fully. Remeasuring is required.
- Is "STALL TEST" within specification?
YES
- Go to "SIGNAL CIRCUIT INSPECTION " procedure.
NO
- Go to "COMPONENT INSPECTION " procedure.
CAUTION:- Do not let anybody stand in front of or behind the vehicle while this test is being carried out.
- Check the A/T fluid level and temperature and the engine coolant temperature.
- Fluid level: At the hot mark on the oil level gauge.
- Fluid temperature: 176°F~212°F (80~100°C).
- Engine coolant temperature: 176°F~212°F {80~100°C).
- Chock both rear wheel (left and right).
- Pull the parking brake lever on with the brake pedal fully depressed.
- The throttle should not be left fully open for more than eight second.
- If carrying out the stall test two or more time, move the select lever to the "N" position and run the engine at 1,000 RPM to let the A/T fluid cool down before carrying out subsequent.