A/T SHIFT LOCK SYSTEM
TM-421
< COMPONENT DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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2. Check voltage between A/T device harness connector terminal
5 and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
5.CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch harness connector
terminals 3 and 4.
Check stop lamp switch after adjusting brake pedal. Refer to
XX-XX, "*****"
.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
Check the following. If any items are damaged, repair or replace damaged parts.
Harness for short or open between ignition switch and stop lamp switch harness connector
Harness for short or open between stop lamp switch harness connector and A/T device harness connector
10A fuse [No. 3, located in the fuse block (J/B)]
Ignition switch.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
7.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector termi-
nal 6 and ground.
4. Connect A/T device harness connector.
OK or NG
OK >> Replace shift lock solenoid and park position switch
assembly.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA7171E
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
SCIA2126E
Continuity should exist.
SCIA5000E
TCM
TM-423
< ECU DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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TCM CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR TCM
Data are reference valuesand are measured between each terminal and ground.
SHIFT S/V AWhen shift solenoid valve A operates.
(When driving in “D1” or “D4”.)ON
When shift solenoid valve A does not operate.
(When driving in “D
2” or “D3”.)OFF
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/C S/VWhen overrun clutch solenoid valve operates.
(When overrun clutch disengaged. Refer to TM-
14.)ON
When overrun clutch solenoid valve does not
operate. (When overrun clutch engaged. Refer
to TM-14
.)OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
GEAR During driving 1, 2, 3, 4
SLCT LVR POSIWhen setting selector lever to “N” or “P” posi-
tions.N · P
When setting selector lever to “R” position. R
When setting selector lever to “D” position. D
When setting selector lever to “2” position. 2
When setting selector lever to “1” position. 1
VEHICLE SPEED During drivingApproximately matches the speedometer
reading.
LINE PRES DTY Line pressure low ⇔ Line pressure high 0% ⇔ 94%
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94% Item name Condition Display value (Approx.)
SCIA0495E
Te r m i n a lWire
colorItem ConditionJudgement stan-
dard (Approx.)
1WLine pressure solenoid
valveWhen releasing accelerator pedal after
warming up engine.1.5 - 3.0V
When depressing accelerator pedal ful-
ly after warming up engine.0V
2PLine pressure solenoid
valve (with dropping re-
sistor)When releasing accelerator pedal after
warming up engine.4 - 14V
When depressing accelerator pedal ful-
ly after warming up engine.0V
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, "*****"
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)]
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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
TM-432
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
No Down ShiftFailure to change
gear from D
4 to D3.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Overrun clutch solenoid valveXX-XX, "*****"
4. Shift solenoid valve A XX-XX, "*****"
5. Line pressure solenoid valveXX-XX, "*****"
6. Control valve assemblyXX-XX, "*****"
OFF vehicle7. Brake bandXX-XX, "*****"8. Overrun clutchXX-XX, "*****"
Failure to change
gear from D
3 to D2 or
from D
4 to D2.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
5. Control valve assemblyXX-XX, "*****"
OFF vehicle6. High clutchXX-XX, "*****"7. Brake bandXX-XX, "*****"
Failure to change
gear from D
2 to D1 or
from D
3 to D1.ON vehicle1. A/T fluid levelXX-XX, "*****"
2. Accelerator pedal position sensorEC-583
3. Shift solenoid valve AXX-XX, "*****"
4. Shift solenoid valve BXX-XX, "*****"
5. Control valve assemblyXX-XX, "*****"
OFF vehicle6. Low one-way clutchXX-XX, "*****"7. High clutchXX-XX, "*****"
8. Brake bandXX-XX, "*****"
Failure to change
from D
3 to 22 when
shifting selector lever
into “2” position.
XX-XX, "*****"ON vehicle1. Accelerator pedal position sensorEC-5832. Shift solenoid valve BXX-XX, "*****"
3. Control valve assembly XX-XX, "*****"
4. Control cable adjustmentXX-XX, "*****"
OFF vehicle 5. Brake bandXX-XX, "*****"
No Down ShiftDoes not change from
12 to 11 in 1st position.ON vehicle1. PNP switch adjustmentXX-XX, "*****"
2. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
3. Shift solenoid valve AXX-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
SYSTEM SYMPTOM
TM-433
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
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No Up ShiftFailure to change
gear from D
1 to D2.ON vehicle1. Control cable adjustmentXX-XX, "*****"
2. Shift solenoid valve AXX-XX, "*****"
3. Control valve assemblyXX-XX, "*****"
4. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
5. Accelerator pedal position sensorEC-583
OFF vehicle 6. Brake bandXX-XX, "*****"
Failure to change
gear from D
2 to D3.ON vehicle1. Control cable adjustmentXX-XX, "*****"
2. Shift solenoid valve BXX-XX, "*****"
3. Control valve assemblyXX-XX, "*****"
4. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
5. Accelerator pedal position sensorEC-583
OFF vehicle6. High clutchXX-XX, "*****"7. Brake bandXX-XX, "*****"
Failure to change
gear from D
3 to D4.ON vehicle 1. PNP switch adjustmentXX-XX, "*****"
2. Overdrive control switchXX-XX, "*****"
3. Control cable adjustmentXX-XX, "*****"
4. Shift solenoid valve AXX-XX, "*****"
5. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
6. A/T fluid temperature sensorXX-XX, "*****"
OFF vehicle 7. Brake band XX-XX, "*****"
No Up ShiftA/T does not shift to
D4 when driving with
OD ON. (OD OFF in-
dicator lamp is off.)ON vehicle1. Accelerator pedal position sensorEC-583
2. PNP switch adjustmentXX-XX, "*****"
3. Overdrive control switchXX-XX, "*****"
4. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRXX-XX, "*****"
and XX-XX,
"*****"
5. Shift solenoid valve AXX-XX, "*****"
6. Overrun clutch solenoid valveXX-XX, "*****"
7. Control valve assemblyXX-XX, "*****"
8. A/T fluid temperature sensorXX-XX, "*****"
9. Line pressure solenoid valveXX-XX, "*****"
OFF vehicle10. Brake bandXX-XX, "*****"11. Overrun clutchXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page
TM-434
< SYMPTOM DIAGNOSIS >[TYPE 2 (4AT: RE4F03B)]
SYSTEM SYMPTOM
Slips/Will Not EngageVehicle will not run in
“R” position (but runs
in “D”, “2” and “1” po-
sitions). Clutch slips.
Very poor accelera-
tion.ON vehicle1. Control cable adjustmentXX-XX, "*****"
2. Stall testXX-XX, "*****"
3. Line pressure testTM-178
4. Line pressure solenoid valveXX-XX, "*****"
5. Control valve assemblyXX-XX, "*****"
OFF vehicle6. Reverse clutchXX-XX, "*****"
7. High clutchXX-XX, "*****"
8. Forward clutchXX-XX, "*****"
9. Overrun clutchXX-XX, "*****"
10. Low & reverse brakeXX-XX, "*****"
Vehicle will not run in
“D” and “2” positions
(but runs in “1” and
“R” positions).ON vehicle 1. Control cable adjustmentXX-XX, "*****"
OFF vehicle 2. Low one-way clutchXX-XX, "*****"
Items Symptom Condition Diagnostic item Reference page