TM-452
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor.
4.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-213, "
Component".
2. Check A/T fluid condition. Refer to TM-171, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following items:
- Shift valve A
- Overrun clutch control valve
- Shift solenoid valve A
- Overrun clutch solenoid valve
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following items:
- Servo piston assembly
- Brake band
- Torque converter. Refer to TM-222, "
Disassembly".
- Oil pump assembly. Refer to TM-240, "
Oil Pump".
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following items:
- Shift valve A
- Overrun clutch control valve
- Shift solenoid valve A
- Pilot valve
- Pilot filter
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to TM-183, "
Cruise Test - Part 1" and TM-185, "Cruise Test - Part 2".
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to TM-22, "
Input/Output Signal of TCM".
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Perform Lock-upINFOID:0000000001714357
SYMPTOM:
A/T does not perform lock-up at the specified speed on “Cruise Test — Part 1”.
TM-460
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
- Servo piston assembly
- Brake band
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to TM-186, "
Cruise Test - Part 3".
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to TM-22, "
Input/Output Signal of TCM".
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Decelerate by Engine BrakeINFOID:0000000001714364
SYMPTOM:
Vehicle does not decelerate by engine brake when shifting from 2
2 (12) to 11“Cruise Test — Part 3”.
Vehicle does not decelerate by engine brake when OD OFF (OD OFF indicator lamp is on) on “Cruise
Test — Part 3”.
Vehicle does not decelerate by engine brake when shifting A/T from “D” to “2” position on “Cruise
Test — Part 3”.
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to XX-XX, "*****"
or TM-38, "Diagnosis Procedure without CONSULT-III".
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to XX-XX, "*****" (type 1) or XX-XX, "*****" (type 2).
NO >> GO TO 2.
2.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW”.
Check the signal of the overdrive control switch is indicated properly.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
SAT778B
Item nameOverdrive control switch
ConditionDisplay value
OVERDRIVE SWDepressed ON
Released OFF
SYSTEM SYMPTOM
TM-463
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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- Shift valve A
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following.
- Overrun clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
- Low & reverse brake assembly. Refer to TM-273, "
Low & Reverse Brake".
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to TM-186, "
Cruise Test - Part 3".
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .CHECK TCM
1. Check TCM input/output signals. Refer to TM-22, "
Input/Output Signal of TCM".
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
TCM Self-Diagnosis Does Not ActivateINFOID:0000000001714365
SYMPTOM:
OD OFF indicator lamp does not come on in TCM self-diagnostic procedure even if the lamp circuit is
good.
DESCRIPTION
PNP switch
PNP switch assembly includes a transaxle position switch. The
transaxle position switch detects the selector lever position and
sends a signal to the TCM.
Overdrive control switch
Overdrive control switch detects the switch position (ON or OFF)
and sends a signal to the TCM.
SCIA7141E
SCIA7142E
A/T FLUID
TM-473
< ON-VEHICLE MAINTENANCE >[TYPE 2 (4AT: RE4F03B)]
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ON-VEHICLE MAINTENANCE
A/T FLUID
Checking A/T FluidINFOID:0000000001728296
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Before driving, A/T fluid level can be checked at A/T fluid tem-
peratures of 30 to 50°C (86 to 122°F) using the “COLD” range
on A/T fluid level gauge.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free cloth.
CAUTION:
When wiping the A/T fluid level gauge, always use lint-free
cloth.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far
as it will go.
CAUTION:
Firmly secure the A/T fluid level gauge to the A/T fluid
charging pipe using the stopper attached.
f. Remove A/T fluid level gauge and note reading. If reading is at
low side of range, add A/T fluid to the A/T fluid charging pipe.
CAUTION:
Do not overfill.
4. Drive vehicle for approximately 5 minutes.
5. Re-check A/T fluid level at A/T fluid temperatures of 50 to 80°C (122 to 176°F) using “HOT” range on A/T
fluid level gauge.
CAUTION:
When wiping the A/T fluid level gauge, always use lint-free cloth.
Firmly secure the A/T fluid level gauge to the A/T fluid charging pipe using the stopper attached.
6. Check A/T fluid condition and make any necessary repairs. If the A/T fluid smells burnt, contains frictional
material (clutches, bands, etc.), or if the A/T is repaired, overhauled, or replaced, inspect and clean the A/
T fluid cooler mounted in the radiator. Refer to TM-474, "
A/T Fluid Cooler Cleaning".
7. Install the removed A/T fluid level gauge into the A/T fluid charging pipe.
CAUTION:
Firmly secure the A/T fluid level gauge to the A/T fluid charging pipe using the stopper attached.
Changing A/T FluidINFOID:0000000001728297
1. Warm up A/T fluid.
2. Stop engine.
3. Drain A/T fluid by removing the drain plug from the transaxle.
4. Reinstall the drain plug and new gasket and tighten to the specified torque.
CAUTION:
Do not reuse drain plug gasket.
SCIA3451E
SMA051D
Drain plug: Refer to TM-213, "Component".
STALL TEST
TM-477
< ON-VEHICLE MAINTENANCE >[TYPE 2 (4AT: RE4F03B)]
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STALL TEST
Inspection and JudgmentINFOID:0000000001726680
STALL TEST PROCEDURE
1. Check ATF and engine oil levels. If necessary, add ATF and
engine oil.
2. Drive vehicle for approximately 10 minutes or until ATF and
engine oil reach operating temperature.
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D”
position.
6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately release
throttle.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.ATF operating temperature: 50 - 80°C (122 - 176°F)
SAT647B
SAT513G
SAT775B
Stall revolution: 2,300 - 2,750 rpm
SAT514G
TM-478
< ON-VEHICLE MAINTENANCE >[TYPE 2 (4AT: RE4F03B)]
STALL TEST
8. Move selector lever to “N” position.
9. Cool off ATF.
CAUTION:
Run the engine at idle for at least 1 minute.
10. Repeat steps 6 through 9 with selector lever in “2”, “1” and “R”
positions.
JUDGEMENT OF STALL TEST
The test result and possible damaged components relating to each result are shown in the illustrations on next
page.
In order to pinpoint the possible damaged components, refer to XX-XX, "*****"
.
NOTE:
Stall revolution is too high in “D”, “2”, or “1” position:
Slippage occurs in 1st gear but not in 2nd and 3rd gears. ..... Low one-way clutch slippage
Slippage occurs in the following gears:
1st through 3rd gears in “D” position and engine brake functions with OD OFF. (OD OFF indicator lamp is
on.)
1st and 2nd gears in “2” position and engine brake functions with accelerator pedal released (fully closed
throttle)...... Forward clutch or forward one-way clutch slippage
Stall revolution is too high in “R” position:
Engine brake does not function in “1” position. ..... Low & reverse brake slippage
Engine brake functions in “1” position. ..... Reverse clutch slippage
Stall revolution within specifications:
Vehicle does not achieve speed of more than 80 km/h (50 MPH). ..... One-way clutch seizure in torque con-
verter housing
CAUTION:
Be careful because automatic fluid temperature increases abnormally:
Slippage occurs in 3rd and 4th gears in “D” position. ..... High clutch slippage
Slippage occurs in 2nd and 4th gears in “D” position. ..... Brake band slippage
Engine brake does not function in 2nd and 3rd gears in “D” position, 2nd gear in “2” position, and 1st gear in
“1” position with OD OFF. (OD OFF indicator lamp is on.) ..... Overrun clutch slippage
Stall revolution less than specifications:
Poor acceleration during starts. ..... One-way clutch seizure in torque converter
SAT771B
TM-480
< ON-VEHICLE MAINTENANCE >[TYPE 2 (4AT: RE4F03B)]
LINE PRESSURE TEST
LINE PRESSURE TEST
Inspection and JudgmentINFOID:0000000001726681
LINE PRESSURE TEST PORTS
Location of line pressure test ports are shown in the figure.
Always replace pressure plugs as they are self-sealing bolts.
LINE PRESSURE TEST PROCEDURE
1. Check ATF and engine oil levels. If necessary, add ATF or
engine oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.
3. Install oil pressure gauge to corresponding line pressure test
port.
4. Set parking brake and block wheels.
SCIA7187E
ATF operating temperature: 50 - 80°C (122 -176°F)
SAT647B
SCIA6528J
SAT513G
LINE PRESSURE TEST
TM-481
< ON-VEHICLE MAINTENANCE >[TYPE 2 (4AT: RE4F03B)]
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5. Start engine and measure line pressure at idle and stall speed.
CAUTION:
Keep the brake pedal pressed all the way down during
measurement.
When measuring the line pressure at the stall speed, refer
to "STALL TEST".
LINE PRESSURE
JUDGEMENT OF LINE PRESSURE TEST
SAT493G
Engine speedLine pressure [kPa (kg/cm
2, psi)]
D, 2nd and 1st positions R position
Idle speed 500 (5.1, 73) 778 (7.9, 113)
Stall speed 1,173 (12.0, 170) 1,825 (18.6, 265)
Judgement Suspected parts
At idleLine pressure is low in all positions. Oil pump wear
Control piston damage
Pressure regulator valve or plug sticking
Spring for pressure regulator valve damaged
Fluid pressure leakage between oil strainer and pressure regulator valve
Clogged strainer
Line pressure is low in particular posi-
tion. Fluid pressure leakage between manual valve and particular clutch
For example, line pressure is:
− Low in “R” and “1” positions, but
− Normal in “D”, and “2” positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to TM-14, "
Shift Mechanism".
Line pressure is high. Accelerator pedal position signal malfunction
A/T fluid temperature sensor damaged
Line pressure solenoid valve sticking
Short circuit of line pressure solenoid valve circuit
Pressure modifier valve sticking
Pressure regulator valve or plug sticking
Open in dropping resistor circuit
At stall
speedLine pressure is low. Accelerator pedal position signal malfunction
Line pressure solenoid valve sticking
Short circuit of line pressure solenoid valve circuit
Pressure regulator valve or plug sticking
Pressure modifier valve sticking
Pilot valve sticking