TM-422
< ECU DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
TCM
ECU DIAGNOSIS
TCM
Reference ValueINFOID:0000000001714339
REFERENCE VALUES
NOTICE:
1. The CONSULT-III electrically displays shift timing and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timing and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-III and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
- Actual shift schedule has more or less tolerance or allowance,
- Shift schedule indicated in Service Manual refers to the point where shifts start, and
- Gear position displayed on CONSULT-III indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-III at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
Item name Condition Display value (Approx.)
VHCL/S SE-A/T
During drivingApproximately matches the speedometer
reading.
VHCL/S SE-MTR
THROTTLE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
FLUID TEMP SE When A/T fluid temperature is 20°C (68°F). 1.5V
When A/T fluid temperature is 80°C (176°F). 0.5V
BATTERY VOLT When turning ignition switch to “ON”. Battery voltage
ENGINE SPEED Engine runningApproximately matches the tachometer
reading.
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
OVERDRIVE SWWhen overdrive control switch is depressed. ON
When overdrive control switch is released. OFF
PN POSI SWWhen setting selector lever to “N” or “P” position. ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” position. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
CLOSED THL/SWReleased accelerator pedal. ON
Depressed accelerator pedal. OFF
W/O THRL/P-SWFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
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, "*****"
SYSTEM SYMPTOM
TM-429
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SYMPTOM DIAGNOSIS
SYSTEM SYMPTOM
Symptom ChartINFOID:0000000001714345
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Items Symptom Condition Diagnostic item Reference page
No Lock-up Engage-
ment/TCC InoperativeTorque converter is
not locked up.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Engine speed signalXX-XX, "*****"
4. A/T fluid temperature sensorXX-XX, "*****"
5. Line pressure testXX-XX, "*****"
6. Torque converter clutch solenoid valveXX-XX, "*****"
7. Control valve assemblyXX-XX, "*****"
OFF vehicle 8. Torque converterXX-XX, "*****"
Torque converter
clutch piston slip.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Line pressure testTM-178
4. Torque converter clutch solenoid valveXX-XX, "*****"
5. Line pressure solenoid valveXX-XX, "*****"
6. Control valve assemblyXX-XX, "*****"
OFF vehicle 7. Torque converterXX-XX, "*****"
Lock-up point is ex-
tremely high or low.ON vehicle1. Accelerator pedal position sensorEC-5832. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Torque converter clutch solenoid valveXX-XX, "*****"
4. Control valve assemblyXX-XX, "*****"
TM-430
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
Shift ShockSharp shock in shift-
ing from “N” to “D” po-
sition.ON vehicle1. Engine idling speedXX-XX, "*****"
(Type 1), XX-XX,
"*****" (Type 2)
2. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
3. Line pressure testTM-178
4. A/T fluid temperature sensorTM-48
(Type 1),
XX-XX, "*****"
(Type 2)
5. Engine speed signalTM-56
(Type 1),
XX-XX, "*****"
(Type 2)
6. Line pressure solenoid valveTM-81
(Type 1),
XX-XX, "*****"
(Type 2)
7. Control valve assemblyXX-XX, "*****"
8. Accumulator N-DXX-XX, "*****"
OFF vehicle 9. Forward clutchXX-XX, "*****"
Too sharp a shock in
changing from D
1 to
D
2.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Accumulator servo releaseXX-XX, "*****"
4. Control valve assemblyXX-XX, "*****"
5. A/T fluid temperature sensorTM-48
(Type 1),
XX-XX, "*****"
(Type 2)
OFF vehicle 6. Brake bandXX-XX, "*****"
Too sharp a shock in
changing from D
2 to
D
3.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Control valve assemblyXX-XX, "*****"
OFF vehicle4. High clutchXX-XX, "*****"5. Brake bandXX-XX, "*****"
Too sharp a shock in
changing from D
3 to
D
4.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Control valve assemblyXX-XX, "*****"
OFF vehicle4. Brake bandXX-XX, "*****"5. Overrun clutchXX-XX, "*****"
6. Forward one-way clutchXX-XX, "*****"
Gear change shock
during deceleration by
releasing accelerator
pedal.ON vehicle1. Accelerator pedal position sensorEC-297
(Type 1),
EC-583
(Type 2)
2. Line pressure testTM-178
3. Overrun clutch solenoid valveTM-93
(Type 1),
XX-XX, "*****"
(Type 2)
4. Control valve assemblyXX-XX, "*****"
Large shock in chang-
ing from 1
2 to 11 in “1”
position.ON vehicle 1. Control valve assemblyXX-XX, "*****"OFF vehicle 2. Low & reverse brakeXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
SYSTEM SYMPTOM
TM-431
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Improper Shift TimingToo high a gear
change point from D
1
to D
2, from D2 to D3,
from D
3 to D4.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Gear change directly
from D
1 to D3 occurs.ON vehicle1. A/T fluid levelXX-XX, "*****"2. Accumulator servo releaseXX-XX, "*****"
OFF vehicle 3. Brake bandXX-XX, "*****"
Too high a change
point from D
4 to D3,
from D
3 to D 2, from
D
2 to D1.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
Kickdown does not
operate when de-
pressing accelerator
pedal in D
4 within
kickdown vehicle
speed.ON vehicle1. Accelerator pedal position sensorEC-583
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Kickdown operates or
engine overruns when
depressing accelera-
tor pedal in D
4 beyond
kickdown vehicle
speed limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
2. Accelerator pedal position sensorEC-583
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
Gear change from 22
to 2
3 in “2” position.ON vehicle1. PNP switch adjustmentXX-XX, "*****"2. Control cable adjustmentXX-XX, "*****"
Gear change from 11
to 1
2 in “1” position.ON vehicle1. PNP switch adjustmentXX-XX, "*****"2. Control cable adjustmentXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
SYSTEM SYMPTOM
TM-437
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Slips/Will Not EngageRaces extremely fast
or slips in changing
from D
3 to D2 when
depressing accelera-
tor pedal. ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensor EC-583
3. Line pressure testTM-178
4. Line pressure solenoid valveXX-XX, "*****"
5. Shift solenoid valve BXX-XX, "*****"
6. Control valve assemblyXX-XX, "*****"
OFF vehicle7. Brake bandXX-XX, "*****"8. High clutchXX-XX, "*****"
Races extremely fast
or slips in changing
from D
4 or D3 to D 1
when depressing ac-
celerator pedal.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Line pressure testTM-178
4. Line pressure solenoid valveXX-XX, "*****"
5. Shift solenoid valve AXX-XX, "*****"
6. Shift solenoid valve BXX-XX, "*****"
7. Control valve assemblyXX-XX, "*****"
OFF vehicle8. Forward clutchXX-XX, "*****"9. Forward one-way clutchXX-XX, "*****"
10. Low one-way clutchXX-XX, "*****"
Vehicle will not run in
any position.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Control cable adjustmentXX-XX, "*****"
3. Line pressure testTM-178
4. Line pressure solenoid valveXX-XX, "*****"
OFF vehicle5. Oil pumpXX-XX, "*****"
6. High clutchXX-XX, "*****"
7. Brake bandXX-XX, "*****"
8. Low & reverse brakeXX-XX, "*****"
9. Torque converterXX-XX, "*****"
10. Parking componentsXX-XX, "*****"
OthersEngine cannot be
started in “P” and “N”
positions.
XX-XX, "*****"
ON vehicle1. Ignition switch and starterXX-XX, "*****"
,
XX-XX, "*****"
2. Control cable adjustmentXX-XX, "*****"
3. PNP switch adjustmentXX-XX, "*****"
Engine starts in posi-
tions other than “P”
and “N”.ON vehicle1. Control cable adjustmentXX-XX, "*****"
2. PNP switch adjustmentXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
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)]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
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