TM-400
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T 3RD GEAR FUNCTION
A/T 3RD GEAR FUNCTION
DescriptionINFOID:0000000001713086
This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.
This malfunction is detected when the A/T does not shift into third gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as
control valve sticking, improper solenoid valve operation, malfunctioning servo piston or brake band, etc.
On Board Diagnosis LogicINFOID:0000000001713087
Diagnostic trouble code “A/T 3RD GR FNCTN” with CONSULT-III is detected when A/T cannot be shifted to
the 3rd gear position even if electrical circuit is good.
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (3rd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve A is stuck closed.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck closed: 1, 1, 4* and 4 positions to each gear position
above
*: “A/T 3RD GR FNCTN” is detected.
Possible CauseINFOID:0000000001713088
Shift solenoid valve A
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001713089
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. Start engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
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 “3RD GR FNCTN P0733” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III and touch “START”.
5. Accelerate vehicle to 60 to 75 km/h (37 to 47 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
-Make sure that “GEAR” shows “4” after releasing pedal.
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
A/T 4TH GEAR FUNCTION
TM-403
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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A/T 4TH GEAR FUNCTION
DescriptionINFOID:0000000001713091
This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.
This malfunction is detected when the A/T does not shift into fourth gear position or the torque converter
clutch does not lock up as instructed by the TCM. This is not caused by electrical malfunction (circuits open
or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation,
malfunctioning oil pump or torque converter clutch, etc.
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713092
Diagnostic trouble code “A/T 4TH GR FNCTN” with CONSULT-III is detected when A/T cannot be shifted to
the 4th gear position even if electrical circuit is good.
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is much lower than the position (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis malfunc-
tion.
This malfunction will be caused when shift solenoid valve B is stuck closed.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck open: 2, 2, 3 and 3* positions
In case of gear position with shift solenoid valve B stuck closed: 1, 2, 2 and 1* positions to each gear position
above
*: “A/T 4TH GR FNCTN” is detected.
Possible CauseINFOID:0000000001713093
Shift solenoid valve A
Shift solenoid valve B
Line pressure solenoid valve
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001713094
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. Start engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
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 (Approx.)
LINE PRES DTYSmall throttle opening (Low line pressure) ⇔ Large
throttle opening (High line pressure)0% ⇔ 94%
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-408
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T TCC S/V FUNCTION (LOCK-UP)
A/T TCC S/V FUNCTION (LOCK-UP)
DescriptionINFOID:0000000001713096
This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.
This malfunction is detected when the A/T does not shift into fourth gear position or the torque converter
clutch does not lock-up as instructed by the TCM. This is not caused by electrical malfunction (circuits open
or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation,
malfunctioning oil pump or torque converter clutch, etc.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001713097
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001713098
Diagnostic trouble code “A/T TCC S/V FNCTN” with CONSULT-III is detected when A/T cannot perform
lock-up even if electrical circuit is good.
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is much lower than the position (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis malfunc-
tion.
This malfunction will be caused when shift solenoid valve B is stuck closed.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve B stuck closed: 1, 2, 2 and 1* positions to each gear position
above
*: “A/T TCC S/V FNCTN” is detected.
Possible CauseINFOID:0000000001713099
Line pressure solenoid valve
Torque converter clutch solenoid valve
Each clutch
Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001713100
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. Start engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
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 vehicle to decrease voltage (warm up the fluid) or stop engine to increase voltage
(cool down the fluid).
4. Select “TCC S/V FNCTN P0744” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III and touch “START”.
Item name Condition Display value (Approx.)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%
CONTROL UNIT (RAM), CONTROL UNIT (ROM)
TM-413
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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CONTROL UNIT (RAM), CONTROL UNIT (ROM)
DescriptionINFOID:0000000001713102
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
On Board Diagnosis LogicINFOID:0000000001713103
Diagnostic trouble code “CONTROL UNIT (RAM)”, “CONTROL UNIT (ROM)” with CONSULT-III is detected
when TCM memory (RAM) or (ROM) is malfunctioning.
Possible CauseINFOID:0000000001713104
TCM.
DTC Confirmation ProcedureINFOID:0000000001713105
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 and select “DATA MONITOR” mode for TRANSMISSION with CONSULT-III.
2. Touch “START”.
3. Start engine.
4. Run engine for at least 2 seconds at idle speed.
5. If the check result is NG, go to TM-413, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001713106
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON and select “SELF-DIAG RESULTS” mode for TRANSMISSION with CONSULT-III.
2. Touch “ERASE”.
3. Perform TM-413, "
DTC Confirmation Procedure".
Is the
“CONTROL UNIT (RAM)” or “CONTROL UNIT (ROM)” displayed again?
YES >> Replace TCM.
NO >>INSPECTION END
SAT574J
TM-416
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
4.CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Check continuity between PNP switch harness connector termi-
nals.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test
group 4.
OK or NG
OK >> Adjust control cable. Refer to XX-XX, "*****".
NG >> Repair or replace PNP switch. Refer to XX-XX, "*****"
.
6.DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between ignition switch and PNP switch
Harness for short or open between PNP switch and TCM
Harness for short or open between PNP switch and combination meter
Harness for short or open between combination meter and TCM
10A fuse (No.51, located in the IPDM E/R)
Combination meter.
Ignition switch.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out “OVERDRIVE SW”. Check the signal of overdrive control switch is indicated properly.
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
Selector lever position Connector Terminal Continuity
“P”
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi-
tions other
than the
specified
positions. “R” 3 - 8
“N” 1 - 2, 3 - 9
“D” 3 - 6
“2” 3 - 5
“1” 3 - 4
SCIA5588E
Item nameOverdrive control switch
ConditionDisplay value
OVERDRIVE SWDepressed ON
Released OFF
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
TM-417
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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2. Check voltage between A/T device harness connector terminal
and ground.
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
8.CHECK OVERDRIVE CONTROL SWITCH
1. Turn ignition switch OFF.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector termi-
nals.
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9.DETECT MALFUNCTIONING ITEM
Check the following.
Harness for short or open between combination meter and A/T device harness connector
Harness for short or open between A/T device harness connector and ground
Combination meter.
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for TRANSMISSION with CONSULT-III.
3. Read out “CLOSED THL/SW” and “W/O THRL/P-SW” depressing and releasing accelerator pedal.
Check that the signals of throttle position are indicated properly.
OK or NG
OK >> GO TO 11.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
Accelerator pedal position sensor. Refer to XX-XX, "*****"
.
Item Connector TerminalOverdrive
control switch
ConditionJudge-
ment
standard
(Approx.)
A/T device harness
connector (Overdrive
control switch)M38 1 - GroundReleasedBattery
voltage
Depressed 0V
SCIA5336E
Item Connector TerminalOverdrive control
switch conditionContinuity
A/T device harness con-
nector (Overdrive con-
trol switch)M38 1 - 2Released No
Depressed Yes
SCIA5330E
Accelerator pedal conditionData monitor
CLOSED THL/SW W/O THRL/P-SW
Released ON OFF
Fully depressed OFF ON
TM-420
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
A/T SHIFT LOCK SYSTEM
Data are reference values.
Diagnosis ProcedureINFOID:0000000001731062
SYMPTOM 1:
Selector lever cannot be moved from “P” position with ignition switch in ON position and brake
pedal depressed.
Selector lever can be moved from “P” position with ignition key in ON position and brake pedal
released.
Selector lever can be moved from “P” position when ignition switch is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to “P” position.
Ignition key can be removed when selector lever is set to any position except “P” position.
1.CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to XX-XX, "*****"
.
2.CHECK A/T POSITION
Check A/T position. Refer to XX-XX, "*****"
.
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to XX-XX, "*****"
.
3.CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Turn ignition switch ON. (Do not start engine.)
2. Selector lever is set in “P” position.
3. Check operation sound.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
TER-
MINAL
NO.WIRE
COLORITEM CONDITIONVOLTAGE
(Approx.)
1 P O/D switchIgnition switch: “ON” Battery voltage
Ignition switch: “OFF” 0V
2 B Ground Always 0V
3 L IlluminationParking lamps: “ON” Battery voltage
Parking lamps: “OFF” 0V
4 B Ground Always 0V
5 LG Shift lock solenoidWhen ignition switch is "ON", brake pedal is depressed and se-
lector lever is set in "P" position.Battery voltage
Except above. 0V
6 B Ground Always 0V
Condition Brake pedal Operation sound
When ignition switch is turned to ON position and selector lever is set in
“P” position.Depressed Yes
Released No