display NISSAN TEANA 2003 Workshop Manual

CONTROL UNIT (ROM)
AT-157
D
E
F
G
H
I
J
K
L
MA
B
AT

CONTROL UNIT (ROM)PFP:31036
DescriptionBCS0013V
TCM consists of a microcomputer and connectors for signal input
and output and for power supply. The unit controls A/T.
On Board Diagnosis LogicBCS0013W
Diagnostic trouble code “CONTROL UNIT (ROM)” with CONSULT-II is detected when TCM memory ROM is
malfunctioning.
Possible CauseBCS0013X
TCM.
DTC Confirmation ProcedureBCS0013Y
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Run engine for at least 2 seconds at idle speed.
5. If DTC is detected, go to AT- 1 5 7 , "
Diagnostic Procedure" .
Diagnostic ProcedureBCS0013Z
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-II.
3. Touch “ERASE”.
4. Perform AT- 1 5 7 , "
DTC Confirmation Procedure" .
Is the
“CONTROL UNIT (ROM)” displayed again?
YES >> Replace TCM.
NO >>INSPECTION END
SAT574J
BCIA0031E

PNP, 3RD POSITION SWITCH AND CLOSED THROTTLE, WIDE OPEN THROT-
TLE POSITION SIGNAL
AT-161
D
E
F
G
H
I
J
K
L
MA
B
AT

PNP, 3RD POSITION SWITCH AND CLOSED THROTTLE, WIDE OPEN THROT-
TLE POSITION SIGNAL
PFP:31918
CONSULT-II Reference ValueBCS00145
TCM Terminals and Reference ValueBCS00146
Data are reference value and are measured between each terminal and ground.Item name Condition Display value
PN POSI SW (ON/OFF)When setting selector lever to “N” or “P” position. ON
When setting selector lever to other positions. OFF
R POSITION SW (ON/OFF)When setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SW (ON/OFF)When setting selector lever to “D” and “3” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SW (ON/OFF)When setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SW (ON/OFF)When setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
OVERDRIVE SW (ON/OFF)When setting selector lever to “3” and “2” positions. ON
When setting selector lever to other positions. OFF
CLOSED THL/SW (ON/OFF)Released accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THRL/P-SW (ON/OFF)Fully depressed accelerator pedal. ON
Released accelerator pedal. OFF
Terminal Wire color Item ConditionJudgement standard
(Approx.)
26 V/W PNP switch “1” position
andWhen setting selector
lever to “1” position.Battery voltage
When setting selector
lever to other posi-
tions.0V
27 P/B PNP switch “2” positionWhen setting selector
lever to “2” position.Battery voltage
When setting selector
lever to other posi-
tions.0V
34 BR PNP switch “D” positionWhen setting selector
lever to “D” and “3”
positions.Battery voltage
When setting selector
lever to other posi-
tions.0V
35 G/W PNP switch “R” positionWhen setting selector
lever to “R” position.Battery voltage
When setting selector
lever to other posi-
tions.0V
36 R/B PNP switch “N” or “P” positionWhen setting selector
lever to “N” or “P”
position.Battery voltage
When setting selector
lever to other posi-
tions.0V

AT-162
PNP, 3RD POSITION SWITCH AND CLOSED THROTTLE, WIDE OPEN THROT-
TLE POSITION SIGNAL

Diagnostic ProcedureBCS00147
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 6 9 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 7 6 , "Diagnostic Proce-
dure Without CONSULT-II" .
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 3 3 , "CAN COMMUNICATION LINE" .
NO (With CONSULT-II) >>GO TO 2.
NO (Without CONSULT-II) >>GO TO 3.
2. CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P·N”, “R”, “D”, “3”, “2” and “1” position switches mov-
ing selector lever to each position.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
Item name Condition Display value
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”
and “3” positions.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
SAT701J

AT-164
PNP, 3RD POSITION SWITCH AND CLOSED THROTTLE, WIDE OPEN THROT-
TLE POSITION SIGNAL

6. CHECK 3RD POSITION SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW” switch moving selector lever to
each position.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT- 1 6 8 , "
Wiring Diagram — AT — NON-
DTC" .
OK or NG
OK >> GO TO 9.
NG >> GO TO 7.
7. CHECK 3RD POSITION SWITCH
Check 3rd position switch. Refer to AT- 1 6 6 , "
3RD POSITION SWITCH" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between A/T device and ground.

Harness for short or open between unified meter and A/C amp and A/T device.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item name Condition Display value
OVERDRIVE SWWhen setting selector lever to
“3” and “2” positions.ON
When setting selector lever to
other positions.OFF
SCIA4730E
Item Connector Terminal ConditionData
(Approx.)
3rd position
switchM62 1 - GroundWhen setting
selector lever to
“3” and “2” posi-
tions.0V
When setting
selector lever to
other positions.Battery
voltage
SCIA7858E

BRAKE SIGNAL CIRCUIT
AT-167
D
E
F
G
H
I
J
K
L
MA
B
AT

BRAKE SIGNAL CIRCUITPFP:25320
CONSULT-II Reference ValueBCS0026P
Diagnostic ProcedureBCS0026Q
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 6 9 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 7 6 , "Diagnostic Proce-
dure Without CONSULT-II" .
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer toAT- 1 3 3 , "CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out ON/OFF switching action of the “BRAKE SW”.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3. CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch harness connector termi-
nals. Refer to AT- 1 6 8 , "
Wiring Diagram — AT — NONDTC" .
Check stop lamp switch after adjusting brake pedal — refer to
BR-6, "
BRAKE PEDAL" .
OK or NG
OK >> Check the following. If NG, repair or replace damaged
parts.

Harness for short or open between battery and stop lamp switch.

Harness for short or open between stop lamp switch and unified meter and A/C amp.

10A fuse (No.20, located in fuse block).
NG >> Repair or replace the stop lamp switch.
Item name Condition Display value
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
Item name Condition Display value
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
SCIA7913E
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
SCIA2126E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-189
D
E
F
G
H
I
J
K
L
MA
B
AT

3. CHECK PNP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P·N”, “R”, “D”, “3”, “2” and “1” position switches mov-
ing selector lever to each position.
OK or NG?
OK >> GO TO 4
NG >> Check PNP switch. Refer to AT- 1 6 6 , "
PNP SWITCH" .
4. CHECK 3RD POSITION SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW” switch moving selector lever to
each position.
OK or NG?
OK >> GO TO 5
NG >> Check 3rd position switch. Refer to AT- 1 6 6 , "
3RD POSITION SWITCH" .
Item name Condition Display value
PN POSI SWWhen setting selector
lever to “N” or “P” posi-
tion.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” and “3” posi-
tions.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
SAT701J
Item name Condition Display value
OVERDRIVE SWWhen setting selector lever to
“3” and “2” positions.ON
When setting selector lever to
other positions.OFF
SCIA4730E

AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS

2. CHECK PNP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P·N”, “R”, “D”, “3”, “2” and “1” position switches mov-
ing selector lever to each position.
OK or NG?
OK >> GO TO 3
NG >> Check PNP switch. Refer to AT- 1 6 6 , "
PNP SWITCH" .
3. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-272, "
DTC P2138 APP SENSOR" (QR engine) or EC-
652, "DTC P2138 APP SENSOR" (VQ engine).
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor.
Item name Condition Display value
PN POSI SWWhen setting selector
lever to “N” or “P” posi-
tion.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” and “3” posi-
tions.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
SAT701J

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-197
D
E
F
G
H
I
J
K
L
MA
B
AT

A/T Does Not Shift: D4 → 33 , When A/T Selector Lever “D” → “3”BCS0014P
SYMPTOM:
A/T does not shift from D4 to 33 when changing A/T selector lever from “D” → “3” position on “Cruise
Te s t — P a r t 3 ” .
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 6 9 , "
SELF-DIAGNOSTIC RESULT MODE" or AT- 7 6 , "Diagnostic Pro-
cedure Without CONSULT-II" .
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 3 3 , "CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK 3RD POSITION SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW” switch moving selector lever to
each position.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT- 1 6 8 , "
Wiring Diagram — AT — NON-
DTC" .
OK or NG
OK >> Go to AT- 1 8 6 , "A/T Does Not Shift: D2 → D3" .
NG >> Check 3rd position switch. Refer to AT- 1 6 6 , "
3RD POSITION SWITCH" .
Item name Condition Display value
OVERDRIVE SWWhen setting selector lever to
“3” and “2” positions.ON
When setting selector lever to
other positions.OFF
SCIA4730E
Item Connector Terminal ConditionData
(Approx.)
3rd position
switchM62 1 - GroundWhen setting
selector lever to
“3” and “2” posi-
tions.0V
When setting
selector lever to
other positions.Battery volt-
age
SCIA7858E

AT-198
TROUBLE DIAGNOSIS FOR SYMPTOMS

A/T Does Not Shift: 33 → 22 , When Selector Lever “3” → “2” PositionBCS0014Q
SYMPTOM:
A/T does not shift from 33 to 22 when changing selector lever from “3” to “2” position on “Cruise Test
— Part 3”.
DIAGNOSTIC PROCEDURE
1. SYMPTOM CHECK
Check symptom. Refer to AT- 5 0 , "
Cruise Test — Part 1" .
Is
“A/T Does No Shift: D1 →D2 or Does Not Kickdown: D4 →D2 ” OK?
YES (With CONSULT-II)>>GO TO 2.
YES (Without CONSULT-II)>>GO TO 3.
NO >> Go to AT- 1 8 4 , "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
2. CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P·N”, “R”, “D”, “3”, “2” and “1” position switches mov-
ing selector lever to each position.
OK or NG
OK >>INSPECTION END.
NG >> Check PNP switch. Refer to AT- 1 6 6 , "
PNP SWITCH" .
Item name Condition Display value
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” and “3” positions.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
SAT701J

AT-200
TROUBLE DIAGNOSIS FOR SYMPTOMS

A/T Does Not Shift: 22 → 11 , When Selector Lever “2” → “1” PositionBCS0014R
SYMPTOM:
A/T does not shift from 22 to 11 when changing selector lever from “2” to “1” position on “Cruise Test
— Part 3”.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P·N”, “R”, “D”, “3”, “2” and “1” position switches mov-
ing selector lever to each position.
OK or NG
OK >> GO TO 3.
NG >> Check PNP switch. Refer to AT- 1 6 6 , "
PNP SWITCH" .
Item name Condition Display value
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” and “3” positions.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
SAT701J