SYSTEM SYMPTOM
TM-453
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to XX-XX, "*****"
or TM-38, "Diagnosis Procedure without CONSULT-III".
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to XX-XX, "*****" or XX-XX, "*****".
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to XX-XX, "*****"
(type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check following items:
- Torque converter clutch control valve
- Torque converter clutch solenoid valve
- Torque converter relief valve
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following items:
- Torque converter. Refer to TM-222, "
Disassembly".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again. Refer to TM-183, "
Cruise Test - Part 1".
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5.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 Hold Lock-up ConditionINFOID:0000000001714358
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds on “Cruise Test — Part 1”.
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to XX-XX, "*****"
or TM-38, "Diagnosis Procedure without CONSULT-III".
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to XX-XX, "*****" or XX-XX, "*****".
NO >> GO TO 2.
2.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 4.
NG >> GO TO 3.
SYSTEM SYMPTOM
TM-455
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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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.
Engine Speed Does Not Return to Idle (Light Braking D4→ D3)INFOID:0000000001714360
SYMPTOM:
Engine speed does not smoothly return to idle when A/T shifts from D
4 to D3 on “Cruise Test — Part
1”.
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to XX-XX, "*****"
or TM-38, "Diagnosis Procedure without CONSULT-III".
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to XX-XX, "*****" or XX-XX, "*****".
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to XX-XX, "*****"
(type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3.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 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following items:
- Overrun clutch control valve
- Overrun clutch reducing valve
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following items:
- Overrun clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following items:
- Overrun clutch control valve
- Overrun clutch reducing valve
- Overrun clutch solenoid valve
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK SYMPTOM
Check again. Refer to TM-183, "
Cruise Test - Part 1".
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
SYSTEM SYMPTOM
TM-459
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 3
NG >> Check PNP switch circuit. Refer to TM-46, "
Component Inspection".
3.CHECK A/T POSITION
Check A/T position. Refer to TM-204, "
Checking of A/T Position".
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to TM-204, "
Adjustment of A/T Position".
4.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to XX-XX,
"*****" (type 1) or XX-XX, "*****" (type 2) and XX-XX, "*****" (type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 5.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
5.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 7.
NG >> GO TO 6.
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
- Shift solenoid valve A
- Overrun clutch control valve
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following items:
Selector lever positionTe r m i n a l
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“P”, “N” B 0 0 0 0
“R” 0B000
“D” 0 0 B 0 0
“2” 0 0 0 B 0
“1” 0 0 0 0 B
SCIA7162E
TM-462
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 5
NG >> Check PNP switch circuit. Refer to XX-XX, "*****"
(type 1) or XX-XX, "*****" (type 2).
5.CHECK A/T POSITION
Check A/T position. Refer to TM-204, "
Checking of A/T Position".
OK or NG
OK >> GO TO 6.
NG >> Adjust A/T position. Refer to TM-204, "
Adjustment of A/T Position".
6.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to XX-XX,
"*****" (type 1) or XX-XX, "*****" (type 2) and XX-XX, "*****" (type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
7.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to XX-XX, "*****"
(type 1) or XX-XX, "*****" (type 2).
OK or NG
OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor.
8.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 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following.
Selector lever positionTe r m i n a l
36 35 34 27 26
“P”, “N” B0000
“R” 0B000
“D” 0 0 B 0 0
“2” 000B0
“1” 0000B
SCIA7162E
TM-464
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
Closed throttle position signal and wide open throttle position sig-
nal
ECM judges throttle opening based on a signal from accelerator
pedal position sensor, and sends the signal via CAN communica-
tion to the TCM.
DIAGNOSTIC PROCEDURE
NOTE:
The diagnostic procedure includes inspection for the PNP stitch, overdrive control switch, closed throttle posi-
tion signal and wide open throttle position signal circuit. Refer to TM-115, "
Component Inspection".
SCIA7143E
TM-466
< PRECAUTION >[TYPE 2 (4AT: RE4F03B)]
PRECAUTIONS
Be sure to turn the ignition switch OFF and disconnect battery negative cable from battery negative
terminal before any repair or inspection work. The open/short circuit of related switches, sensors,
solenoid valves, etc. will cause the MIL to light up.
Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connectors are free from water, grease,
dirt, bent terminals, etc.)
Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000001723047
Before connecting or disconnecting the TCM harness connec-
tor, turn ignition switch OFF and disconnect the battery cable
from the negative terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if igni-
tion switch is turned off.
When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM pin
terminal, when connecting pin connectors.
Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. (See page XX-XX, "*****"
.)
After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.
Before proceeding with disassembly, thoroughly clean the outside
of the transaxle. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
Disassembly should be done in a clean work area.
Use lint-free cloth or towels for wiping parts clean. Common shop
rags can leave fibers that could interfere with the operation of the A/T.
Place disassembled parts in order for easier and proper assembly.
All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.
It is very important to perform functional tests whenever they are indicated.
The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
SEF289H
AAT470A
MEF040DA
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
TM-504
< REMOVAL AND INSTALLATION >[TYPE 2 (4AT: RE4F03B)]
TRANSAXLE ASSEMBLY
2. Disconnect the following connectors and remove the wire har-
ness.
Turbine revolution sensor (power train revolution sensor) har-
ness connector (1)
Terminal cord assembly harness connector (2)
PNP switch connector (3)
Revolution sensor harness connector (4)
3. Remove the four drive plate to torque converter bolts.
NOTE:
Rotate the crankshaft clockwise as viewed from front of engine
for access to drive plate to torque converter bolts.
4. Put matching marks on the drive plate and torque converter.
CAUTION:
For matching marks, use paint. Never damage the drive plate or torque converter.
5. Remove the transaxle to engine and engine to transaxle bolts.
6. Separate the transaxle from the engine.
CAUTION:
Secure torque converter to prevent it from dropping.
7. If necessary, remove the following from the transaxle:
Fluid cooler tubes (1) and copper washers
A/T fluid level gauge (2) and charging pipe (3)
PNP switch
Air breather hose
Engine mounting bracket (LH)
Any necessary brackets
INSPECTION
WCIA0647E
WCIA0616E
WCIA0648E