TM-438
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
OthersTransaxle noise in“ P”
and “N” positions.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Line pressure testTM-178
3. Accelerator pedal position sensorEC-583
4. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
OFF vehicle5. Oil pumpXX-XX, "*****"6. Torque converterXX-XX, "*****"
Vehicle moves when
changing into “P” po-
sition or parking gear
does not disengage
when shifted out of “P”
position.ON vehicle 1. Control cable adjustmentXX-XX, "*****"
OFF vehicle 2. Parking componentsXX-XX, "*****"
Vehicle runs in “N” po-
sition.
XX-XX, "*****"
ON vehicle 1. Control cable adjustmentXX-XX, "*****"
OFF vehicle2. Forward clutchXX-XX, "*****"3. Reverse clutchXX-XX, "*****"
4. Overrun clutchXX-XX, "*****"
Vehicle braked when
shifting into “R” posi-
tion.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Control cable adjustmentXX-XX, "*****"
3. Line pressure testTM-178
4. Line pressure solenoid valveXX-XX, "*****"
5. Control valve assemblyXX-XX, "*****"
OFF vehicle6. High clutchXX-XX, "*****"7. Brake band XX-XX, "*****"
8. Forward clutchXX-XX, "*****"
9. Overrun clutchXX-XX, "*****"
Excessive creep. ON vehicle 1. Engine idling speedEC-389
Engine stops when
shifting lever into “R”,
“D”, “2” and “1” posi-
tions.ON vehicle1. Engine idling speedEC-3892. A/T fluid levelXX-XX, "*****"
3. Torque converter clutch solenoid valveXX-XX, "*****"
4. Control valve assemblyXX-XX, "*****"
OFF vehicle 5. Torque converterXX-XX, "*****"
Vehicle braked by
gear change from D
1
to D
2.ON vehicle 1. A/T fluid levelXX-XX, "*****"OFF vehicle2. Reverse clutchXX-XX, "*****"3. Low & reverse brakeXX-XX, "*****"
4. High clutchXX-XX, "*****"
5. Low one-way clutchXX-XX, "*****"
Vehicle braked by
gear change from D
2
to D
3.ON vehicle 1. A/T fluid levelXX-XX, "*****"OFF vehicle 2. Brake bandXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
SYSTEM SYMPTOM
TM-439
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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OthersVehicle braked by
gear change from D
3
to D
4.ON vehicle 1. A/T fluid levelXX-XX, "*****"OFF vehicle2. Overrun clutchXX-XX, "*****"3. Forward one-way clutchXX-XX, "*****"
4. Reverse clutchXX-XX, "*****"
Maximum speed not
attained. Poor accel-
eration.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. PNP switch adjustmentXX-XX, "*****"
3. Overdrive control switchXX-XX, "*****"
4. Accelerator pedal position sensorEC-583
5. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
6. Shift solenoid valve AXX-XX, "*****"
7. Shift solenoid valve BXX-XX, "*****"
8. Control valve assemblyXX-XX, "*****"
OFF vehicle9. Reverse clutchXX-XX, "*****"
10. High clutchXX-XX, "*****"
11. Brake bandXX-XX, "*****"
12. Low & reverse brakeXX-XX, "*****"
13. Oil pumpXX-XX, "*****"
14. Torque converterXX-XX, "*****"
Transaxle noise in
“D”, “2”, “1” and “R”
positions.ON vehicle 1. A/T fluid levelXX-XX, "*****"
OFF vehicle 2. Torque converterXX-XX, "*****"
Engine brake does
not operate in “1” po-
sition.ON vehicle1. PNP switch adjustmentXX-XX, "*****"
2. Control cable adjustmentXX-XX, "*****"
3. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
4. Control valve assemblyXX-XX, "*****"
5. Overrun clutch solenoid valveXX-XX, "*****"
OFF vehicle6. Overrun clutchXX-XX, "*****"7. Low & reverse brakeXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
TM-440
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
OD OFF Indicator Lamp Does Not Come On
INFOID:0000000001714346
SYMPTOM:
OD OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to XX-XX, "*****"
or TM-350, "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 TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
OthersTransaxle overheats.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Engine idling speedEC-389
3. Accelerator pedal position sensorEC-583
4. Line pressure testTM-178
5. Line pressure solenoid valveXX-XX, "*****"
6. Control valve assemblyXX-XX, "*****"
OFF vehicle7. Oil pumpXX-XX, "*****"
8. Reverse clutchXX-XX, "*****"
9. High clutchXX-XX, "*****"
10. Brake bandXX-XX, "*****"
11. Forward clutchXX-XX, "*****"
12. Overrun clutchXX-XX, "*****"
13. Low & reverse brakeXX-XX, "*****"
14. Torque converterXX-XX, "*****"
ATF shoots out during
operation.
White smoke emitted
from exhaust pipe
during operation.ON vehicle 1. A/T fluid levelXX-XX, "*****"
OFF vehicle2. Reverse clutchXX-XX, "*****"
3. High clutchXX-XX, "*****"
4. Brake bandXX-XX, "*****"
5. Forward clutchXX-XX, "*****"
6. Overrun clutchXX-XX, "*****"
7. Low & reverse brakeXX-XX, "*****"
Unusual smell at A/T
fluid charging pipe.ON vehicle 1. A/T fluid levelXX-XX, "*****"
OFF vehicle2. Torque converterXX-XX, "*****"
3. Oil pumpXX-XX, "*****"
4. Reverse clutchXX-XX, "*****"
5. High clutchXX-XX, "*****"
6. Brake bandXX-XX, "*****"
7. Forward clutchXX-XX, "*****"
8. Overrun clutchXX-XX, "*****"
9. Low & reverse brakeXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
SYSTEM SYMPTOM
TM-443
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to TM-204, "
Adjustment of A/T Position".
2.CHECK PARKING COMPONENTS
Check parking components. Refer to TM-213, "
Component" and TM-
222, "Disassembly".
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
In "N" Position, Vehicle MovesINFOID:0000000001714349
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
1.CHECK A/T POSITION
Check A/T position. Refer to TM-204, "
Checking of A/T Position".
OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to TM-204, "
Adjustment of A/T Position".
2.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-171, "
Checking A/T Fluid".
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
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. Disassemble A/T. Refer to TM-222, "
Disassembly".
2. Check the following items:
- Forward clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
- Overrun clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
- Reverse clutch assembly. Refer to TM-258, "
Reverse Clutch".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again. Refer to TM-181, "
Check at Idle".
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
SAT282F
SYSTEM SYMPTOM
TM-445
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer to TM-178, "
Inspection and Judgment".
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to TM-191, "
Control Valve Assembly and Accumulators".
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to TM-222, "
Disassembly".
4. Check the following item:
- Oil pump assembly. Refer to TM-240, "
Oil Pump".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK STALL REVOLUTION
Check stall revolution with selector lever in “1” and “R” positions. Refer to TM-175, "
Inspection and Judgment".
OK or NG
OK >> GO TO 6.
OK in “1” position, NG in “R” position>>GO TO 5.
NG in both “1” and “R” positions>>GO TO 7.
5.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to TM-222, "
Disassembly".
2. Check the following items:
- Low & reverse brake assembly. Refer to TM-273, "
Low & Reverse Brake".
- Reverse clutch assembly. Refer to TM-258, "
Reverse Clutch".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.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 8.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to TM-222, "
Disassembly".
2. Check the following items:
- Reverse clutch assembly. Refer to TM-258, "
Reverse Clutch".
- High clutch assembly. Refer to TM-262, "
High Clutch".
- Low & reverse brake assembly. Refer to TM-273, "
Low & Reverse Brake".
- Forward clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
- Overrun clutch assembly. Refer to TM-267, "
Forward and Overrun Clutches".
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK SYMPTOM
Check again. Refer to TM-181, "
Check at Idle".
OK or NG
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
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
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