DIAGNOSIS SYSTEM (TCM)
TM-349
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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DATA MONITOR MODE
Display Items List
X: Standard, —: Not applicable, : Option
INITIAL START This is not a malfunction message (Whenever shutting off a power sup-
ply to the TCM, this message appears on the screen). Refer to XX-XX,
"*****".XX-XX, "*****"
No failure
(NO SELF DIAGNOSTIC FAILURE
INDICATED FURTHER TESTING
MAY BE REQUIRED) No failure has been detected. — Items (CONSULT-III screen terms) Malfunction is detected when... Reference page
Monitored item (Unit)Monitor Item Selection
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
VHCL/S SE-A/T (km/h) X — Revolution sensor
VHCL/S SE-MTR (km/h) X —Vehicle speed display may not be accu-
rate under approx. 10 km/h (6 mph). It
may not indicate 0 km/h (0 mph) when
vehicle is stationary.
THRTL POS SEN (V) X —
FLUID TEMP SE (V) X —
BATTERY VOLT (V) X —
ENGINE SPEED (rpm) X X
TURBINE REV (rpm) X —
OVERDRIVE SW (ON/OFF) X —
PN POSI SW (ON/OFF) X —
R POSITION SW (ON/OFF) X —
D POSITION SW (ON/OFF) X —
2 POSITION SW (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
ASCD-CRUISE (ON/OFF) X —
Signal input with CAN communication.
ASCD-OD CUT (ON/OFF) X —
KICKDOWN SW (ON/OFF) X —
Not mounted but displayed.
POWERSHIFT SW (ON/OFF) X —
CLOSED THL/SW (ON/OFF) X —
Signal input with CAN communication.
W/O THRL/P-SW (ON/OFF) X —
*SHIFT S/V A (ON/OFF) — —
Displays status of check signal (reinput
signal) for TCM control signal output. Re-
mains unchanged when solenoid valves
are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVRRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.
BRAKE SW (ON/OFF) X — Stop lamp switch
GEAR — XGear position recognized by the TCM up-
dated after gear-shifting
CAN COMMUNICATION LINE
TM-391
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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CAN COMMUNICATION LINE
DescriptionINFOID:0000000001713064
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000001713065
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 12th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000001713066
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001713067
CAUTION:
Always drive vehicle at a safe speed.
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Wait at least 6 seconds or start engine and wait for at least 6 seconds.
5. If DTC is detected, go to TM-391, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Turn ignition switch ON.
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis. Refer to TM-350, "
Diagnosis Procedure without CONSULT-III".
4. If DTC is detected, go to TM-391, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713069
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III
1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAGNOSTIC RESULTS” mode for “TRANSMISSION” with CONSULT-III.
Is any malfunction of the
“CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-III screen, GO TO LAN section. Refer to XX-XX, "*****"
NO >>INSPECTION END
TM-392
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
MAIN POWER SUPPLY AND GROUND CIRCUIT
MAIN POWER SUPPLY AND GROUND CIRCUIT
DescriptionINFOID:0000000001713070
When the power supply to the TCM is cut “OFF”, for example because the battery is removed, and the self-
diagnostics memory function stops, malfunction is detected.
On Board Diagnosis LogicINFOID:0000000001713071
Diagnostic trouble code “INITIAL START” with CONSULT-III is detected when TCM does not receive the
voltage signal from the battery power supply.
This is not a malfunction message. (Whenever shutting “OFF” a power supply to the TCM, this message
appears on the screen.)
Possible CauseINFOID:0000000001713072
Harness or connector
(Battery or ignition switch and TCM circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001713073
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Wait for at least 2 consecutive seconds.
5. If DTC is detected, go to TM-392, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713075
1.CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
NameConnec-
torTerminal Judgement standard (Approx.)
Power supply E3110 Battery voltage
19 Battery voltage
Power supply
(memory back-up)E32 28 Battery voltage
SCIA2656E
NameConnec-
torTerminal Judgement standard (Approx.)
Power supply E3110 0V
19 0V
Power supply
(memory back-up)E32 28 Battery voltage
SCIA2657E
A/T 1ST GEAR FUNCTION
TM-395
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
-Make sure that “GEAR” shows “2” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 20 to
25 km/h (12 to 16 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to TM-395, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to the following step.
-Make sure that “GEAR” shows “1” when depressing accelerator pedal to WOT.
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAGNOSTIC
RESULTS” for “TRANSMISSION”. In case a DTC other than “A/T 1ST GR FNCTN” is shown, refer
to XX-XX, "*****"
.
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to TM-395, "
Diagnosis Procedure".
Refer to XX-XX, "*****"
.
Diagnosis ProcedureINFOID:0000000001713080
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve A
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminals and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve A
- Shift solenoid valve B
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “A/T 1ST GR FNCTN ” exists. 2 → 2 → 3 → 3
4 → 3 → 3 → 4
Solenoid valve TerminalResistance
(Approx.)
Shift solenoid valve A 2
Ground20 - 30 Ω
Shift solenoid valve B 1 5 - 20 Ω
SCIA3594E
TM-398
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T 2ND GEAR FUNCTION
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 45 to
50 km/h (28 to 31 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETE”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to TM-398, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
-Make sure that “GEAR” shows “2” when depressing accelerator pedal to WOT.
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAGNOSTIC
RESULTS” for “TRANSMISSION”. In case a DTC other than “A/T 2ND GR FNCTN” is shown, refer
to XX-XX, "*****"
.
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to TM-398, "
Diagnosis Procedure".
Refer to XX-XX, "*****"
.
Diagnosis ProcedureINFOID:0000000001713085
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to XX-XX, "*****"
.
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “A/T 2ND GR FNCTN” exists. 4 → 3 → 3 → 4
Solenoid valve TerminalResistance
(Approx.)
Shift solenoid valve B 1 Ground 5 - 20 Ω
SCIA2055E
SCIA2058E
A/T 3RD GEAR FUNCTION
TM-401
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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6. Depress accelerator pedal steadily with 3.5/8 - 4.5/8 of “THROTTLE POSI” from a speed of 60 to 75 km/h
(37 to 47 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take approxi-
mately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to TM-401, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
-Make sure that “GEAR” shows “3” when depressing accelerator pedal with 3.5/8 - 4.5/8 of
“THROTTLE POSI”.
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “A/T 3RD GR FNCTN” is shown, refer to XX-XX,
"*****".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to TM-401, "
Diagnosis Procedure".
Refer to XX-XX, "*****"
.
Diagnosis ProcedureINFOID:0000000001713090
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve A
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminals and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve A
- Shift solenoid valve B
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “A/T 3RD GR FNCTN” exists. 1 → 1 → 4 → 4
Solenoid valve TerminalResistance
(Approx.)
Shift solenoid valve A 2
Ground20 - 30 Ω
Shift solenoid valve B 1 5 - 20 Ω
SCIA3594E
TM-404
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T 4TH GEAR FUNCTION
3. Make sure that output voltage of A/T fluid temperature sensor is within the range below.
FLUID TEMP SE: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid).
4. Select “4TH GR FNCTN P0734” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III and touch “START”.
5. Accelerate vehicle to 55 to 65 km/h (34 to 40 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less than 5.5/8 (at all times during step 4)
SLCT LVR POSI: “D” position
-Make sure that “GEAR” shows “3” after releasing pedal.
6. Depress accelerator pedal steadily with 1.0/8 - 2.0/8 of “THROTTLE POSI” from a speed of 55 to 65 km/h
(34 to 40 MPH) until “TESTING” has turned to “STOP VEHICLE” or “COMPLETED”. (It will take approxi-
mately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to TM-404, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
-Make sure that “GEAR” shows “4” when depressing accelerator pedal with 1.0/8 - 2.0/8 of
“THROTTLE POSI”.
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS” for
“A/T”. In case a DTC other than “A/T 4TH GR FNCTN” is shown, refer to XX-XX, "*****"
.
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to TM-404, "
Diagnosis Procedure".
Refer to XX-XX, "*****"
.
Diagnosis ProcedureINFOID:0000000001713095
1.CHECK SHIFT-UP (D3 TO D4)
During XX-XX, "*****"
.
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Perform line pressure test. Refer to XX-XX, "*****"
.
OK or NG
OK >> GO TO 3.
NG >> GO TO 7.
3.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to XX-XX, "*****"
.
- Shift solenoid valve A
- Shift solenoid valve B
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “A/T 4TH GR FNCTN” exists.2 → 2 → 3 → 3
1 → 2 → 2 → 1
SCIA7190E
TM-428
< ECU DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
TCM
If non-standard solenoid signal is sent to TCM, torque converter clutch solenoid valve is turned OFF to release
lock-up.
Overrun Clutch Solenoid Valve
If non-standard solenoid signal is sent to TCM, overrun clutch solenoid valve is turned OFF to engage overrun
clutch. This will result in more effective engine brake during deceleration.
Alphabetical IndexINFOID:0000000001714344
NOTE:
If DTC “CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis for
DTC “CAN COMM CIRCUIT”. Refer to XX-XX, "*****"
.
X: Applicable, —: Not applicable
Items (CONSULT-II screen terms)TCM self-diagnosis
Reference
page OD OFF indi-
cator lamp“A/T” with
CONSULT-II
A/T 1ST GR FNCTN — XXX-XX, "*****"
A/T 2ND GR FNCTN — XXX-XX, "*****"
A/T 3RD GR FNCTN — XXX-XX, "*****"
A/T 4TH GR FNCTN — XXX-XX, "*****"
A/T TCC S/V FNCTN — XXX-XX, "*****"
BATT/FLUID TEMP SEN X XXX-XX, "*****"
CAN COMM CIRCUIT X XXX-XX, "*****"
CONTROL UNIT (RAM) — XXX-XX, "*****"
CONTROL UNIT (ROM) — XXX-XX, "*****"
ENGINE SPEED SIG X XXX-XX, "*****"
LINE PRESSURE S/V X XXX-XX, "*****"
OVERRUN CLUTCH S/V X XXX-XX, "*****"
SHIFT SOLENOID/V A X XXX-XX, "*****"
SHIFT SOLENOID/V B X XXX-XX, "*****"
T/C CLUTCH SOL/V X XXX-XX, "*****"
THROTTLE POSI SEN X XXX-XX, "*****"
TURBINE SENSOR X XXX-XX, "*****"
VHCL SPEED SEN-A/T X XXX-XX, "*****"
VHCL SPEED SEN-MTR X XXX-XX, "*****"