TORQUE CONVERTER AND SHAFT
The torque converter consists of a impeller (pump), turbine and stator assembly in a single unit. The pump is connected to the engine crankshaft and turns as the engine turns. This drawing force is transmitted to the turbine through the oil which is recycled by the stator.
The transmission has two parallel shafts; the input shaft and the output shaft. Both shafts are in line with the engine crankshaft. The input shaft includes the overdrive clutch, reverse clutch, underdrive clutch, one way clutch, 2ND brake, low & reverse brake, overdrive planetary carrier, output planetary carrier and transfer drive gear. The output shaft includes the transfer driven gear.
HALL TYPE SENSOR: SPECIFICATION
| Air gap (mm) | Input shaft speed sensor | 1.3 |
|---|---|---|
| Output shaft speed sensor | 0.85 | |
| Coil Resistance | Input shaft speed sensor | Over 1Mohm |
| Output shaft speed sensor | Over 1Mohm | |
| Peak-Peak Voltage | High | 4.8~5.2V |
| Low | 0.8V |
HALL TYPE SENSOR SPECIFICATION
Scheme 13
Scheme 14
Scheme 15
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Scheme 17
TORQUE CONVERTER STALL TEST
This test measures the maximum engine speed when the selector lever is in the D or R position. The torque converter stalls to test the operation of the torque converter, starter motor, one-way clutch operation, the holding performance of the clutches, and brakes in the transaxle.
| CAUTION | Do not let anybody stand in front of or behind the vehicle while this test is being carried out |
- Check the automatic transmission fluid level and temperature, and the engine coolant temperature. Fluid level: At the HOT mark on the oil level gauge Fluid temperature: 80~100°C (176~212°F) Engine coolant temperature: 80~100°C (176~212°F)
- Prevent the wheels from moving during the test.
- Pull the parking brake lever up, with the brake pedal fully depressed.
- Start the engine.
- Move the selector lever to the "D" position, fully depress the accelerator pedal and take a reading of the maximum engine speed at this time. Stall speed: 2.0 (GSL): 2400~3000 RPM 2.7 (GSL): 2100~2700 RPM CAUTION: The throttle should not be left fully open for any more than five seconds. If carrying out the stall test two or more times, move the selector lever to the "N" position and run the engine at 1,000 r/min to let the automatic transaxle fluid cool down before carrying out subsequent tests.
- Move the selector lever to the "R" position and carry out the same test again.
Scheme 18
- Stall speed is too high in both "D" and "R" ranges Low line pressure Low & reverse brake (B) slippage
- Stall speed is to high in "D" range only Underdrive clutch (C) slippage
- Stall speed is too high in "R" range only Reverse clutch (A) slippage
- Stall speed too low in both "D" and "R" ranges Malfunction of torque converter (D) Insufficient engine output
Scheme 19
Scheme 20
Scheme 21
- Warm up the engine until the automatic transaxle fluid temperature is 80-100°C (176~212°F).
- Jack up the vehicle so that the wheels are free to turn.
- Connect the special tool (oil pressure gauge) to each pressure discharge port.
- Measure the hydraulic pressure at each port under the conditions given in the standard hydraulic pressure table, and check that the measured values are within the standard value ranges.
- If a value is outside the standard range, correct the problem while referring to the hydraulic pressure test diagnosis table.
SPECIFICATION
| BRAKE | DATA VALUE |
|---|---|
| Operation | ON |
| Non-operation | OFF |
BRAKE SWITCH OPERATION
Scheme 22
Scheme 23
Scheme 24
- Connect scantool to data link connector (DLC).
- Ignition "ON" & Engine "OFF".
- Monitor the "BRAKE LAMP SWITCH" parameter on the scantool.
- Depress and release Foot Brake.
- Does "STOP LAMP SWITCH" follow the reference data? YES Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to " «VERIFICATION OF VEHICLE REPAIR»(ref-226850-S22231075212006032900000) " procedure. NO Go to "W/HARNESS INSPECTION " procedure.
| Inspection condition | Reference value | |
|---|---|---|
| * IG KEY: ON or Engine stall | Shift lever: P | P, N |
| Shift lever: R | R | |
| Shift lever: N | P, N | |
| Shift lever: D | D | |
INSPECTION CONDITIONS
Scheme 25
Scheme 26
- Connect scantool to data link connector (DLC).
- Ignition "ON" & Engine "OFF".
- Monitor the "TRANSAXLE RANGE SWITCH" parameter on the scantool.
- Move selector lever from "P" range to other range.
- Does "TRANSAXLE RANGE SWITCH" follow the reference data? YES Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to " «VERIFICATION OF VEHICLE REPAIR»(ref-226850-S22231075212006032900000) " procedure. NO Go to " «TERMINAL & CONNECTOR INSPECTION»(ref-226850-S42309407112006032900000) " procedure.
Refer to DTC P0707 TRANSAXLE RANGE SENSOR - LOW .
| Temp.[°C (°F)] | Resistance (kohm) | Temp.[°C (°F)] | Resistance (k°) |
|---|---|---|---|
| 40 (-40) | 139.5 | 80 (176) | 1.08 |
| 20 (-4) | 47.7 | 100 (212) | 0.63 |
| 0 (32) | 18.6 | 120 (248) | 0.38 |
| 20 (68) | 8.1 | 140 (284) | 0.25 |
| 40 (104) | 3.8 | 160 (320) | 0.16 |
| 60 (140) | 1.98 |
TRANSAXLE FLUID TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS
Scheme 27
Scheme 28
- Connect scantool to data link connector (DLC).
- Engine "ON".
- Monitor the "TRANSAXLE FLUID TEMPERATURE SENSOR" parameter on the scantool. Specification: Increasing Gradually
- Does "TRANSAXLE FLUID TEMPERATURE SENSOR" follow the reference data? YES Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to " «VERIFICATION OF VEHICLE REPAIR»(ref-226850-S16628798262006032900000) " procedure. NO Go to "W/HARNESS INSPECTION " procedure.
Refer to DTC P0711 TRANSAXLE FLUID TEMPERATURE SENSOR RATIONALITY .
Refer to DTC P0711 TRANSAXLE FLUID TEMPERATURE SENSOR RATIONALITY .
Input shaft & Output shaft speed sensor
- Type: Hall sensor
- Current consumption: 22mA (MAX)
- sensor body and sensor connector have been unified as one.
Scheme 29
Scheme 30
Scheme 31
- Connect scantool to data link connector (DLC).
- Engine "ON".
- Monitor the "INPUT SPEED SENSOR" parameter on the scantool
- Driving at speed of over 30 Km/h (19 mph). Specification: Increasing Gradually
- Does "input speed sensor" follow the reference data? YES Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and go to " «VERIFICATION OF VEHICLE REPAIR»(ref-226850-S35160744592006032900000) " procedure. NO Go to "W/HARNESS INSPECTION " procedure.
Refer to DTC P0715 INPUT SPEED SENSOR CIRCUIT .
Scheme 32
Refer to DTC P0715 INPUT SPEED SENSOR CIRCUIT .
Refer to DTC P0715 INPUT SPEED SENSOR CIRCUIT .
Refer to DTC P0715 INPUT SPEED SENSOR CIRCUIT .
Solenoid Valve for Pressure Control
- Sensor type: Normal open 3-way
- Operating temperature: -30°C~130°C (-22~266°F)
- Frequency: LR, 2ND, UD, OD, RED: 61.27Hz (at the ATF temp. -20°C (-4°F) above) DCC: 30.64Hz
- Internal resistance: 2.7~3.4ohm [20°C (68°F)]
- Surge voltage: 56 V
Refer to DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT - ELECTRICAL .
Refer to DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT - ELECTRICAL .
Refer to DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT - ELECTRICAL .
Refer to DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT - ELECTRICAL .