TM-348
< FUNCTION DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
DIAGNOSIS SYSTEM (TCM)
DIAGNOSIS SYSTEM (TCM)
CONSULT-III Function (TRANSMISSION)INFOID:0000000001714329
CONSULT-III can display each diagnostic item using the diagnostic test models shown following.
SELF-DIAGNOSTIC RESULT MODE
Operation Procedure
After performing TM-38, "Diagnosis Procedure without CONSULT-III", place check marks for results on the
XX-XX, "*****"
. Reference pages are provided following the items.
Display Items List
TCM diagnostic mode Description
WORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the TCM for setting the status
suitable for required operation, input/output signals are received from the TCM and received data is
displayed.
SELF-DIAG RESULTS Displays TCM self-diagnosis results.
DATA MONITOR Displays TCM input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST Conducted by CONSULT-III instead of a technician to determine whether each system is “OK” or “NG”.
ECU PART NUMBER TCM part number can be read.
Items (CONSULT-III screen terms) Malfunction is detected when... Reference page
VHCL SPEED SEN-A/T TCM does not receive the proper voltage signal from the sensor.XX-XX, "*****"
VHCL SPEED SEN-MTR TCM does not receive the proper voltage signal from the sensor.XX-XX, "*****"
SHIFT SOLENOID/V A TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.XX-XX, "*****"
SHIFT SOLENOID/V B TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.XX-XX, "*****"
OVERRUN CLUTCH S/V TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.XX-XX, "*****"
T/C CLUTCH SOL/V TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.XX-XX, "*****"
BATT/FLUID TEMP SEN TCM receives an excessively low or high voltage from the sensor.XX-XX, "*****"
ENGINE SPEED SIG TCM does not receive the proper voltage signal from the ECM.XX-XX, "*****"
TURBINE SENSOR TCM does not receive proper voltage signal from sensor.XX-XX, "*****"
LINE PRESSURE S/V TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.XX-XX, "*****"
CAN COMM CIRCUIT When malfunction is detected in CAN communication line.XX-XX, "*****"
A/T 1ST GR FNCTN A/T cannot be shifted to the 1st gear position even if electrical circuit is
good.XX-XX, "*****"
A/T 2ND GR FNCTN A/T cannot be shifted to the 2nd gear position even if electrical circuit is
good.XX-XX, "*****"
A/T 3RD GR FNCTN A/T cannot be shifted to the 3rd gear position even if electrical circuit is
good.XX-XX, "*****"
A/T 4TH GR FNCTN A/T cannot be shifted to the 4th gear position even if electrical circuit is
good.XX-XX, "*****"
A/T TCC S/V FNCTN A/T cannot perform lock-up even if electrical circuit is good.XX-XX, "*****"
CONTROL UNIT (RAM) TCM memory (RAM) is malfunctioning.XX-XX, "*****"
CONTROL UNIT (ROM) TCM memory (ROM) is malfunctioning.XX-XX, "*****"
VEHICLE SPEED SENSOR - A/T (REVOLUTION SENSOR)
TM-355
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COMPONENT DIAGNOSIS
VEHICLE SPEED SENSOR - A/T (REVOLUTION SENSOR)
DescriptionINFOID:0000000001712982
The revolution sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal.
The pulse signal is sent to the TCM which converts it into vehicle speed.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001712983
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001712984
Diagnostic trouble code “VHCL SPEED SEN-A/T” with CONSULT-III or 1st judgement flicker without CON-
SULT-III is detected when TCM does not receive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000001712985
Harness or connector
(Sensor circuit is open or shorted.)
Revolution sensor
DTC Confirmation ProcedureINFOID:0000000001712986
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 and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Drive vehicle and check for an increase of “VHCL/S SE-A/T” value.
If the check result is NG, go to TM-356, "
Diagnosis Procedure".
If the check result is OK, go to following step.
4. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
5. Touch “START”.
6. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 30 km/h (19 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to TM-356, "
Diagnosis Procedure".
If the check result is OK, go to following step.
7. Maintain the following conditions for at least 5 consecutive seconds.
ENGINE SPEED: 3,500 rpm or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 seconds.
Selector lever position: “D” position
Vehicle speed: 30 km/h (19 MPH) or more
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
TM-356
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
VEHICLE SPEED SENSOR - A/T (REVOLUTION SENSOR)
Throttle position: greater than 1.0/8 of the full throttle position
3. Perform self-diagnosis. Refer to TM-38, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-356, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001712988
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “VHCL/S SE·A/T” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK REVOLUTION SENSOR
1. Start engine.
2. Check power supply to revolution sensor by voltage between TCM connector terminals.
3. If OK, check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3. CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect the revolution sensor harness connector.
3. Turn ignition switch ON. (Do not start engine.)
Item Connector Terminal Judgement stan-
dard (Approx.)
TCM E31, E3210 - 42
Battery voltage
19 - 42
Item Condition
Revolution sensorWhen driving at 20 km/h (12 MPH), use the CONSULT-III
pulse frequency measuring function.*1
CAUTION:
Connect the diagnosis data link cable to the data link
connector.
*1: A circuit tester cannot be used to test this item.
Item Connector Terminal ConditionJudgement
standard (Ap-
prox.)
TCM E32 29When driving at 20 km/h
(12 MPH)150 Hz
SCIA4939E
VEHICLE SPEED SENSOR MTR
TM-359
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VEHICLE SPEED SENSOR MTR
DescriptionINFOID:0000000001712989
The vehicle speed sensor·MTR is built into the speedometer assembly. The sensor functions as an auxiliary
device to the revolution sensor when it is malfunctioning. The TCM will then use a signal sent from the vehicle
speed sensor·MTR.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001712990
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001712991
Diagnostic trouble code “VHCL SPEED SEN-MTR” with CONSULT-III or 2nd judgement flicker without CON-
SULT-III is detected when TCM does not receive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000001712992
Harness or connector
(Sensor circuit is open or shorted.)
Vehicle speed sensor
DTC Confirmation ProcedureINFOID:0000000001712993
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 and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine and accelerate vehicle from 0 to 25 km/h (0 to 16 MPH).
4. If the check result is NG, go to TM-359, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever position: “D” position
Vehicle speed: Higher than 25 km/h (16 MPH)
3. Perform self-diagnosis. Refer to TM-38, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-359, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001712995
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “VHCL/S SE-MTR” while driving.
Check the value changes according to driving speed.
Item name Condition Display value
VHCL/S SE-MTR During driving Approximately matches the speedometer reading.
Item name Condition Display value
VHCL/S SE-MTR During drivingApproximately matches
the speedometer reading.
SHIFT SOLENOID VALVE A
TM-361
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SHIFT SOLENOID VALVE A
DescriptionINFOID:0000000001713002
Shift solenoid valves A and B are turned ON or OFF by the TCM in response to signals sent from the PNP
switch, vehicle speed and ECM (throttle opening). Gears will then be shifted to the optimum position.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001713003
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713004
Diagnostic trouble code “SHIFT SOLENOID/V A” with CONSULT-III or 4th judgement flicker without CON-
SULT-III is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseINFOID:0000000001713005
Harness or connector
(Solenoid circuit is open or shorted.)
Shift solenoid valve A
DTC Confirmation ProcedureINFOID:0000000001713006
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 and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine.
4. Drive vehicle in “D” position and allow the transaxle to shift 1 → 2 (“GEAR”).
5. If the check result is NG, go to TM-361, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle in D
1→ D2 position.
3. Perform self-diagnosis. Refer to TM-38, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-361, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713008
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “SHIFT S/V A” while driving.
Check the value changes according to driving speed.
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Item name Condition Display value
SHIFT S/V AWhen shift solenoid valve A operates.
(When driving in “D
1” or “D4”.)ON
When shift solenoid valve A does not operate.
(When driving in “D
2” or “D3”.)OFF
SHIFT SOLENOID VALVE B
TM-365
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SHIFT SOLENOID VALVE B
DescriptionINFOID:0000000001713010
Shift solenoid valves A and B are turned ON or OFF by the TCM in response to signals sent from the PNP
switch, vehicle speed and ECM (throttle opening). Gears will then be shifted to the optimum position.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001713011
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713012
Diagnostic trouble code “SHIFT SOLENOID/V B” with CONSULT-III or 5th judgement flicker without CON-
SULT-III is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseINFOID:0000000001713013
Harness or connector
(Solenoid circuit is open or shorted.)
Shift solenoid valve B
DTC Confirmation ProcedureINFOID:0000000001713014
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.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine.
4. Drive vehicle in “D” position and allow the transaxle to shift 1 → 2 → 3 (“GEAR”).
5. If the check result is NG, go to TM-365, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle in D
1→ D2→ D3 position.
3. Perform self-diagnosis.
Refer to TM-38, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-365, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713016
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “SHIFT S/V B” while driving.
Check the value changes according to driving speed.
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Item name Condition Display value
SHIFT S/V BWhen shift solenoid valve B operates.
(When driving in “D
1” or “D2”.)ON
When shift solenoid valve B does not operate.
(When driving in “D
3” or “D4”.)OFF
OVERRUN CLUTCH SOLENOID VALVE
TM-369
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OVERRUN CLUTCH SOLENOID VALVE
DescriptionINFOID:0000000001713018
The overrun clutch solenoid valve is activated by the TCM in response to signals sent from the PNP switch,
overdrive control switch, vehicle speed and ECM (throttle opening). The overrun clutch operation will then be
controlled.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001713019
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713020
Diagnostic trouble code “OVERRUN CLUTCH S/V” with CONSULT-III or 6th judgement flicker without CON-
SULT-III is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseINFOID:0000000001713021
Harness or connector
(Solenoid circuit is open or shorted.)
Overrun clutch solenoid valve
DTC Confirmation ProcedureINFOID:0000000001713022
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 and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine.
4. Accelerate vehicle to a speed of more than 10 km/h (6 MPH) with “D” position (OD ON).
5. Release accelerator pedal completely with “D” position (OD OFF).
6. If the check result is NG, go to TM-369, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever position: “D” position (OD ON)
Vehicle speed: Higher than 10 km/h (6 MPH)
3. Perform self-diagnosis. Refer to TM-38, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-369, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713024
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “OVERRUN/C S/V” while driving.
Check the value changes according to driving speed.
Item name Condition Display value
OVERRUN/C S/VWhen overrun clutch solenoid valve operates. (When
overrun clutch disengaged. Refer to XX-XX, "*****"
.)ON
When overrun clutch solenoid valve does not operate.
(When overrun clutch engaged. Refer to XX-XX, "*****"
.)OFF
TORQUE CONVERTER CLUTCH SOLENOID VALVE
TM-373
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
DescriptionINFOID:0000000001713026
The torque converter clutch solenoid valve is activated, with the gear in D4 and D3, by the TCM in response
to signals sent from the vehicle speed sensor and the ECM (throttle opening). Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2/8) on lock-up condition, the engine speed should not
change abruptly. If there is an abrupt change in engine speed, there is no lock-up.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001713027
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713028
Diagnostic trouble code “T/C CLUTCH SOL/V” with CONSULT-III or 7th judgement flicker without CONSULT-
III is detected when TCM detects an improper voltage drop while it tries to operate the solenoid valve.
Possible CauseINFOID:0000000001713029
Torque converter clutch solenoid valve
Harness or connector
(Solenoid circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001713030
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. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III and wait at least 1 second.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If the check result is NG, go to TM-373, "
Diagnosis Procedure".
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle in D
1→ D2→ D3→ D4→ D4 lock-up position.
3. Perform self-diagnosis. Refer to TM-350, "
Diagnosis Procedure without CONSULT-III".
4. If the check result is NG, go to TM-373, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713032
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
Item name Condition Display value (Approx.)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%