Engine control NISSAN TEANA 2003 Owner's Manual

TROUBLE DIAGNOSIS
AT-39
D
E
F
G
H
I
J
K
L
MA
B
AT

Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT- 3 4, AT- 3 8
2.❏ Check A/T fluidAT- 1 4❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform “STALL TEST” and “LINE PRESSURE TEST”.AT- 4 3
,
AT- 4 6
❏ “STALL TEST” — Mark possible damaged components/others.
❏ Torque converter one-way clutch
❏ Reverse clutch
❏ Forward clutch
❏ Overrun clutch
❏ Forward one-way clutch❏ Low & reverse brake
❏ Low one-way clutch
❏ Engine
❏ Line pressure is low
❏ Clutches and brakes except high clutch and
brake band are OK
❏ “LINE PRESSURE TEST” — Suspected parts:
4.❏ Perform “Road Test”.AT- 4 8
4-1.“Check Before Engine is Started”AT- 4 8
❏ AT-173, "A/T CHECK Indicator Lamp Does Not Come On" .
❏ Perform self-diagnostics. Enter checks for detected items. AT- 6 9
, AT- 7 6 .
❏ AT-133, "
CAN COMMUNICATION LINE" .
❏ AT-80, "
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" .
❏ AT-86, "
VEHICLE SPEED SENSOR MTR" .
❏ AT-120, "
TURBINE REVOLUTION SENSOR" .
❏ AT-90, "
SHIFT SOLENOID VALVE A" .
❏ AT-95, "
SHIFT SOLENOID VALVE B" .
❏ AT-100, "
OVERRUN CLUTCH SOLENOID VALVE" .
❏ AT-105, "
TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-110, "
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)" .
❏ AT-116, "
ENGINE SPEED SIGNAL" .
❏ AT-136, "
A/T 1ST GEAR FUNCTION" .
❏ AT-140, "
A/T 2ND GEAR FUNCTION" .
❏ AT-143, "
A/T 3RD GEAR FUNCTION" .
❏ AT-146, "
A/T 4TH GEAR FUNCTION" .
❏ AT-151, "
A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-126, "
LINE PRESSURE SOLENOID VALVE" .
❏ AT-156, "
CONTROL UNIT (RAM)" .
❏ AT-157, "
CONTROL UNIT (ROM)" .
4-2.“Check at Idle”AT- 4 8
❏ AT-175, "Engine Cannot Be Started in “P” and “N” Position" .
❏ AT-176, "
In “P” Position, Vehicle Moves Forward or Backward When Pushed" .
❏ AT-176, "
In “N” Position, Vehicle Moves" .
❏ AT-177, "
Large Shock. “N” → “R” Position" .
❏ AT-179, "
Vehicle Does Not Creep Backward in “R” Position" .
❏ AT-181, "
Vehicle Does Not Creep Forward in “D”, “3”, “2” or “1” Position" .

AT-40
TROUBLE DIAGNOSIS

4. 4-3.“Cruise Test”AT- 5 0
Part 1
❏ AT-182, "
Vehicle Cannot Be Started From D1" .
❏ AT-184, "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-186, "
A/T Does Not Shift: D2 → D3" .
❏ AT-188, "
A/T Does Not Shift: D3 → D4" .
❏ AT-191, "
A/T Does Not Perform Lock-up" .
❏ AT-193, "
A/T Does Not Hold Lock-up Condition" .
❏ AT-195, "
Lock-up Is Not Released" .
❏ AT-195, "
Engine Speed Does Not Return To Idle (Light Braking D4 → D3 )" .
Part 2AT- 5 1
❏ AT-182, "Vehicle Cannot Be Started From D1" .
❏ AT- 1 8 4 , "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-186, "
A/T Does Not Shift: D2 → D3" .
❏ AT-188, "
A/T Does Not Shift: D3 → D4" .
Part 3AT- 5 2
❏ AT-197, "A/T Does Not Shift: D4 → 33 , When A/T Selector Lever “D” → “3”" .
❏ AT-203, "
Vehicle Does Not Decelerate By Engine Brake (D4 → 33 )" .
❏ AT-198, "
A/T Does Not Shift: 33 → 22 , When Selector Lever “3” → “2” Position" .
❏ AT-205, "
Vehicle Does Not Decelerate By Engine Brake (33 → 22 )" .
❏ AT-200, "
A/T Does Not Shift: 22 → 11 , When Selector Lever “2” → “1” Position" .
❏ AT-208, "
Vehicle Does Not Decelerate By Engine Brake (22 → 11 )" .
❏ Perform self-diagnostics. Enter checks for detected items. AT- 6 9
, AT- 7 6 .
❏ AT-133, "
CAN COMMUNICATION LINE" .
❏ AT-80, "
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" .
❏ AT-86, "
VEHICLE SPEED SENSOR MTR" .
❏ AT-120, "
TURBINE REVOLUTION SENSOR" .
❏ AT-90, "
SHIFT SOLENOID VALVE A" .
❏ AT-95, "
SHIFT SOLENOID VALVE B" .
❏ AT-100, "
OVERRUN CLUTCH SOLENOID VALVE" .
❏ AT-105, "
TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-110, "
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)" .
❏ AT-116, "
ENGINE SPEED SIGNAL" .
❏ AT-136, "
A/T 1ST GEAR FUNCTION" .
❏ AT-140, "
A/T 2ND GEAR FUNCTION" .
❏ AT-143, "
A/T 3RD GEAR FUNCTION" .
❏ AT-146, "
A/T 4TH GEAR FUNCTION" .
❏ AT-151, "
A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-126, "
LINE PRESSURE SOLENOID VALVE" .
❏ AT-156, "
CONTROL UNIT (RAM)" .
❏ AT-157, "
CONTROL UNIT (ROM)" .
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.
6.❏ Perform “Road Test”.AT- 4 8
7.❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT- 5 5
8.❏ Erase DTC from TCM and ECM memories.AT- 6 9AT- 7 9

TROUBLE DIAGNOSIS
AT-47
D
E
F
G
H
I
J
K
L
MA
B
AT

5. Start engine and measure line pressure at idle and stall speed.
CAUTION:

Keep the brake pedal pressed all the way down during
measurement.

When measuring line pressure at stall speed, refer to AT-
43, "STALL TEST" .
Line Pressure
Judgement of Line Pressure Test
SAT493G
Engine speed rpmLine pressure kPa (bar, kg/cm2 , psi)
“D”, “3”, “2” and “1” positions “R” position
Idle 500 (5.00, 5.1, 73) 778 (7.78, 7.9, 113)
Stall 1,233 (12.33, 12.6, 179) 1,918 (19.18, 19.6, 278)
Judgement Suspected parts
At idleLine pressure is low in all positions.

Oil pump wear

Control piston damage

Pressure regulator valve or plug sticking

Spring for pressure regulator valve damaged

Fluid pressure leakage between oil strainer and pressure regulator valve

Clogged strainer
Line pressure is low in particular posi-
tion.

Fluid pressure leakage between manual valve and particular clutch

For example, line pressure is:
− Low in “R” and “1” positions, but
− Normal in “D”, “3” and “2” positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to AT-18, "
CLUTCH AND BAND CHART" .
Line pressure is high.

Accelerator pedal position signal malfunction

A/T fluid temperature sensor damaged

Line pressure solenoid valve sticking

Short circuit of line pressure solenoid valve circuit

Pressure modifier valve sticking

Pressure regulator valve or plug sticking

Open in dropping resistor circuit
At stall
speedLine pressure is low.

Accelerator pedal position signal malfunction

Line pressure solenoid valve sticking

Short circuit of line pressure solenoid valve circuit

Pressure regulator valve or plug sticking

Pressure modifier valve sticking

Pilot valve sticking

TROUBLE DIAGNOSIS
AT-55
D
E
F
G
H
I
J
K
L
MA
B
AT

Symptom ChartBCS0010B
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
Engagement/
TCC InoperativeTorque converter
is not locked up.ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. PNP switchAT- 1 6 1
4. Engine speed signalAT- 11 6
5. A/T fluid temperature sensorAT- 11 0
6. Line pressure testAT- 4 6
7. Torque converter clutch solenoid valveAT- 1 0 5
8. Control valve assemblyAT- 2 2 5
OFF vehicle 9. Torque converterAT- 2 5 5
Torque converter
clutch piston slip.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Torque converter clutch solenoid valveAT- 1 0 5
5. Line pressure solenoid valveAT- 1 2 6
6. Control valve assemblyAT- 2 2 5
OFF vehicle 7. Torque converterAT- 2 5 5
Lock-up point is
extremely high or
low.ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. Torque converter clutch solenoid valveAT- 1 0 5
4. Control valve assemblyAT- 2 2 5
Shift ShockSharp shock in
shifting from “N”
to “D” position.ON vehicle1. Engine idle speed
EC-45
*1, EC-387*2
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. A/T fluid temperature sensorAT- 11 0
5. Engine speed signalAT- 11 6
6. Line pressure solenoid valveAT- 1 2 6
7. Control valve assemblyAT- 2 2 5
8. N-D accumulatorAT- 2 2 5
OFF vehicle 9. Forward clutchAT- 3 0 7
Too sharp a
shock in change
from D
1 to D2 .ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Line pressure testAT- 4 6
3. Accumulator servo releaseAT- 2 2 5
4. Control valve assemblyAT- 2 2 5
5. A/T fluid temperature sensorAT- 11 0
OFF vehicle 6. Brake bandAT- 3 2 9

AT-56
TROUBLE DIAGNOSIS

Shift ShockToo sharp a
shock in change
from D
2 to D3 .ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Line pressure testAT- 4 6
3. Control valve assemblyAT-225
OFF vehicle4. High clutchAT-3015. Brake bandAT-329
Too sharp a
shock in change
from D
3 to D4 .ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Line pressure testAT- 4 6
3. Control valve assemblyAT-225
OFF vehicle4. Brake bandAT-3295. Overrun clutchAT-307
6. Forward one-way clutchAT-319
Gear change
shock felt during
deceleration by
releasing acceler-
ator pedal.ON vehicle1. Accelerator pedal position sensor
EC-272*1, EC-652*2
2. Line pressure testAT- 4 6
3. Overrun clutch solenoid valveAT-100
4. Control valve assemblyAT-225
Large shock
changing from 1
2
to 1
1 in “1” posi-
tion.ON vehicle 1. Control valve assemblyAT-225OFF vehicle 2. Low & reverse brakeAT-315
Improper Shift
TimingToo high a gear
change point from
D
1 to D2 , from
D
2 to D3 , from
D
3 to D4 .ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. Shift solenoid valve AAT- 9 0
4. Shift solenoid valve BAT- 9 5
Gear change
directly from D
1
to D
3 occurs.ON vehicle1. A/T fluid levelAT- 1 4
2. Accumulator servo releaseAT-225
OFF vehicle 3. Brake bandAT-329
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 sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
Kickdown does
not operate when
depressing pedal
in D
4 within kick-
down vehicle
speed.ON vehicle1. Accelerator pedal position sensor
EC-272
*1, EC-652*2
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
3. Shift solenoid valve AAT- 9 0
4. Shift solenoid valve BAT- 9 5
Kickdown oper-
ates or engine
overruns when
depressing pedal
in D
4 beyond
kickdown vehicle
speed limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0
, AT- 8 6
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Shift solenoid valve AAT- 9 0
4. Shift solenoid valve BAT- 9 5
Gear change
from 2
2 to 23 in
“2” position.ON vehicle1. PNP switchAT-161
2. A/T positionAT-215
Items Symptom Condition Diagnostic item Reference page

TROUBLE DIAGNOSIS
AT-61
D
E
F
G
H
I
J
K
L
MA
B
AT

Slips/Will Not
EngageRaces extremely
fast or slips in
changing from D
3
to D
2 when
depressing pedal. ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Shift solenoid valve BAT- 9 5
6. Control valve assemblyAT- 2 2 5
OFF vehicle7. Brake bandAT- 3 2 98. High clutchAT- 3 0 1
Races extremely
fast or slips in
changing from D
4
or D
3 to D 1
when depressing
pedal.ON vehicle1. A/T fluid levelAT- 1 4
2. Accelerator pedal position sensor
EC-272*1, EC-652*2
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
5. Shift solenoid valve AAT- 9 0
6. Shift solenoid valve BAT- 9 5
7. Control valve assemblyAT- 2 2 5
OFF vehicle8. Forward clutchAT- 3 0 79. Forward one-way clutchAT- 3 1 9
10. Low one-way clutchAT- 2 5 5
Vehicle will not
run in any posi-
tion.ON vehicle1. A/T fluid levelAT- 1 4
2. A/T positionAT- 2 1 5
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT- 1 2 6
OFF vehicle5. Oil pumpAT- 2 7 5
6. High clutchAT- 3 0 1
7. Brake bandAT- 3 2 9
8. Low & reverse brakeAT- 3 1 5
9. Torque converterAT- 2 5 5
10. Parking componentsAT- 2 4 6
OthersEngine cannot be
started in “P” and
“N” positions.
AT-175
ON vehicle1. Ignition switch and starterPG-3
, SC-14 .
2. A/T positionAT- 2 1 5
3. PNP switchAT- 1 6 1
Engine starts in
positions other
than “P” and “N”.ON vehicle1. A/T positionAT- 2 1 5
2. PNP switchAT- 1 6 1
Transaxle noise
in “P” and “N”
positions.ON vehicle1. A/T fluid levelAT- 1 4
2. Line pressure testAT- 4 6
3. Accelerator pedal position sensor
EC-272*1, EC-652*2
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
OFF vehicle5. Oil pumpAT- 2 7 56. Torque converterAT- 2 5 5
Items Symptom Condition Diagnostic item Reference page

AT-62
TROUBLE DIAGNOSIS

OthersVehicle moves
when changing
into “P” position
or parking gear
does not disen-
gage when
shifted out of “P”
position.ON vehicle 1. A/T positionAT-215
OFF vehicle 2. Parking componentsAT-246
Vehicle runs in
“N” position.
AT- 1 7 6
ON vehicle1. PNP switchAT-1612. A/T positionAT-215
OFF vehicle3. Forward clutchAT-3074. Reverse clutchAT-296
5. Overrun clutchAT-307
Vehicle braked
when shifting into
“R” position.ON vehicle1. A/T fluid levelAT- 1 4
2. A/T positionAT-215
3. Line pressure testAT- 4 6
4. Line pressure solenoid valveAT-126
5. Control valve assemblyAT-225
OFF vehicle6. High clutchAT-3017. Brake band AT-329
8. Forward clutchAT-307
9. Overrun clutchAT-307
Excessive creep. ON vehicle 1. Engine idle speed
EC-45*1, EC-387*2
Engine stops
when shifting
lever into “R”, “D”,
“3”, “2” and “1”.ON vehicle1. Engine idle speed
EC-45
*1, EC-387*2
2. A/T fluid levelAT- 1 4
3. Torque converter clutch solenoid valveAT-105
4. Control valve assemblyAT-225
OFF vehicle 5. Torque converterAT-255
Vehicle braked by
gear change from
D
1 to D2 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle2. Reverse clutchAT-2963. Low & reverse brakeAT-315
4. High clutchAT-301
5. Low one-way clutchAT-255
Vehicle braked by
gear change from
D
2 to D3 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle 2. Brake bandAT-329
Vehicle braked by
gear change from
D
3 to D4 .ON vehicle 1. A/T fluid levelAT- 1 4OFF vehicle2. Overrun clutchAT-3073. Forward one-way clutchAT-319
4. Reverse clutchAT-296
Items Symptom Condition Diagnostic item Reference page

TROUBLE DIAGNOSIS
AT-63
D
E
F
G
H
I
J
K
L
MA
B
AT

OthersMaximum speed
not attained.
Acceleration
poor.ON vehicle1. A/T fluid levelAT- 1 4
2. PNP switchAT- 1 6 1
3. 3rd position switchAT- 1 6 1
4. Accelerator pedal position sensor
EC-272*1, EC-652*2
5. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
6. Shift solenoid valve AAT- 9 0
7. Shift solenoid valve BAT- 9 5
8. Control valve assemblyAT- 2 2 5
OFF vehicle9. Reverse clutchAT- 2 9 6
10. High clutchAT- 3 0 1
11. Brake bandAT- 3 2 9
12. Low & reverse brakeAT- 3 1 5
13. Oil pumpAT- 2 7 5
14. Torque converterAT- 2 5 5
Transaxle noise
in “D”, “3”, “2”, “1”
and “R” positions.ON vehicle 1. A/T fluid levelAT- 1 4
OFF vehicle 2. Torque converterAT- 2 5 5
Engine brake
does not operate
in “1” position.ON vehicle1. PNP switchAT- 1 6 1
2. A/T positionAT- 2 1 5
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 8 0, AT- 8 6
4. Control valve assemblyAT- 2 2 5
5. Overrun clutch solenoid valveAT- 1 0 0
OFF vehicle6. Overrun clutchAT- 3 0 77. Low & reverse brakeAT- 3 1 5
Transaxle over-
heats.ON vehicle1. A/T fluid levelAT- 1 4
2. Engine idle speed
EC-45*1, EC-387*2
3. Accelerator pedal position sensor
EC-272*1, EC-652*2
4. Line pressure testAT- 4 6
5. Line pressure solenoid valveAT- 1 2 6
6. Control valve assemblyAT- 2 2 5
OFF vehicle7. Oil pumpAT- 2 7 5
8. Reverse clutchAT- 2 9 6
9. High clutchAT- 3 0 1
10. Brake bandAT- 3 2 9
11. Forward clutchAT- 3 0 7
12. Overrun clutchAT- 3 0 7
13. Low & reverse brakeAT- 3 1 5
14. Torque converterAT- 2 5 5
Items Symptom Condition Diagnostic item Reference page

TROUBLE DIAGNOSIS
AT-69
D
E
F
G
H
I
J
K
L
MA
B
AT

CONSULT-II SETTING PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULT MODE
After performing AT- 7 6 , "Diagnostic Procedure Without CONSULT-II" , place check marks for results on the
AT- 3 8 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
BCIA0031E
Items (CONSULT-II screen terms) Malfunction is detected when... Reference page
CAN COMM CIRCUIT

When TCM is not transmitting or receiving CAN communication signal
for 2 second or more.AT- 1 3 3
VHCL SPEED SEN-A/T
TCM does not receive the proper voltage signal from the sensor.AT- 8 0
VHCL SPEED SEN-MTR
TCM does not receive the proper voltage signal from the sensor.AT- 8 6
TURBINE SENSOR
TCM does not receive proper voltage signal from sensorAT- 1 2 0
SHIFT SOLENOID/V A
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 9 0
SHIFT SOLENOID/V B
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 9 5
OVERRUN CLUTCH S/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 0 0
T/C CLUTCH SOL/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 0 5
BATT/FLUID TEMP SEN
TCM receives an excessively low or high voltage from the sensor.AT- 11 0
ENGINE SPEED SIG
TCM does not receive the proper voltage signal from the ECM.AT- 11 6
A/T 1ST GR FNCTN
A/T cannot be shifted to the 1st gear position even if electrical circuit is
good.AT- 1 3 6
A/T 2ND GR FNCTN
A/T cannot be shifted to the 2nd gear position even if electrical circuit is
good.AT- 1 4 0
A/T 3RD GR FNCTN
A/T cannot be shifted to the 3rd gear position even if electrical circuit is
good.AT- 1 4 3
A/T 4TH GR FNCTN
A/T cannot be shifted to the 4th gear position even if electrical circuit is
good.AT- 1 4 6
A/T TCC S/V FNCTN
A/T cannot perform lock-up even if electrical circuit is good.AT- 1 5 1
LINE PRESSURE S/V
TCM detects an improper voltage drop when it tries to operate the sole-
noid valve.AT- 1 2 6
CONTROL UNIT (RAM)
TCM memory (RAM) is malfunctioningAT- 1 5 6
CONTROL UNIT (ROM)
TCM memory (ROM) is malfunctioningAT- 1 5 7
No failure
(NO SELF DIAGNOSTIC FAILURE
INDICATED FURTHER TESTING
MAY BE REQUIRED)

No failure has been detected. —

TROUBLE DIAGNOSIS
AT-71
D
E
F
G
H
I
J
K
L
MA
B
AT

OVERDRIVE SW (ON/OFF) X —3rd position switch (Signal input with
CAN communication.)
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.
Remains unchanged when solenoid
valves are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVERRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.
BRAKE SW (ON/OFF) X —Stop lamp switch (Signal input with CAN
communication.)
GEAR — XGear position recognized by the TCM
updated after gear-shifting
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe. Monitor item (Unit)SELECT MONITOR ITEM
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU