2003 NISSAN TEANA ECU

MODEL J31 SERIES
2006 NISSAN EUROPE S.A.S.
All rights reserved. No part of this Electronic Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Nissan
Europe S.A.S., Paris, France.
A GENERAL INFORMATION
B ENGINE
C TRANSMISSION/TRANSAXLE
D DRIVELINE/AXLE
E SUSPENSION
F BRAKES
G STEERING H RESTRAINTS
I BODY
J AIR CONDITIONER
K ELECTRICAL
L MAINTENANCE
M INDEXGI General Information
EM Engine Mechanical
LU Engine Lubrication System
CO Engine Cooling System
EC Engine Control System
FL Fuel System
EX Exhaust System
ACC Accelerator Control System
AT Automatic Transmission
CVT CVT
FAX Front Axle
RAX Rear Axle
FSU Front Suspension
RSU Rear Suspension
WT Road Wheels & Tires
BR Brake System
PB Parking Brake System
BRC Brake Control System
PS Power Steering System
SB Seat Belts
SRS Supplemental Restraint System (SRS)
BL Body, Lock & Security System
GW Glasses, Window System & Mirrors
RF Roof
EI Exterior & Interior
IP Instrument Panel
SE Seat
ATC Automatic Air Conditioner
SC Starting & Charging System
LT Lighting System
DI Driver Information System
WW Wiper, Washer & Horn
BCS Body Control System
LAN LAN System
AV Audio, Visual & Telephone System
ACS Auto Cruise Control System
PG Power Supply, Ground & Circuit Elements
MA Maintenance
IDX Alphabetical Index
QUICK REFERENCE INDEX
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M

ACCELERATOR CONTROL SYSTEM
ACC-3
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ACC

ACCELERATOR CONTROL SYSTEMPFP:18005
Removal and InstallationBBS005AN
REMOVAL
1. Disconnect accelerator pedal position sensor harness connector.

Pull connector lock in a rear direction in the figure, to discon-
nect accelerator pedal position sensor harness connector.
2. Loosen mounting bolts and nut, and remove accelerator pedal assembly.
CAUTION:

Do not disassemble accelerator pedal assembly. Do not remove accelerator pedal position sen-
sor from accelerator pedal assembly.

Avoid impact from dropping etc. during handling.

Be careful to keep accelerator pedal assembly away from water.
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION

Make sure that accelerator pedal moves smoothly within the whole operation range.

Make sure that accelerator pedal securely returns to the original position.

For the electrical inspection of accelerator pedal position sensor, refer to the following.
–QR20DE
EC-251, "
DTC P2122, P2123 APP SENSOR", EC-258, "DTC P2127, P2128 APP SENSOR" and EC-
272, "DTC P2138 APP SENSOR"
–VQ23DE and VQ35DE
1. Accelerator pedal assembly
: Vehicle front
PBIC4773E
PBIC2814E

AT-80
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)PFP:32702
DescriptionBCS0010F
The revolution sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal.
The pulse signal is sent to the TCM which converts it into vehicle speed.
CONSULT-II Reference ValueBCS0010G
On Board Diagnosis LogicBCS0010H
Diagnostic trouble code “VHCL SPEED SEN-A/T” with CONSULT-II or 1st judgement flicker without CON-
SULT-II is detected when TCM does not receive the proper voltage signal from the sensor.
Possible CauseBCS0010I

Harness or connector
(Sensor circuit is open or shorted.)

Revolution sensor
DTC Confirmation ProcedureBCS0010J
CAUTION:

Always drive vehicle at a safe speed.

Be careful not to rev engine into the red zone on the tachometer.

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-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Drive vehicle and check for an increase of “VHCL/S SE-MTR”
value.
If the check result is NG, go to AT- 8 8 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
3. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED: 30 km/h (19 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to AT- 8 3 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 5 consecutive seconds.
ENGINE SPEED: 3,500 rpm or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
6. If DTC is detected, go to AT- 8 3 , "
Diagnostic Procedure" .
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
BCIA0031E

TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-105
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TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionBCS0011O
Torque converter clutch solenoid valve is activated, with the gear in D4 , D3 and 33 , by TCM in response to
signals sent from vehicle speed and the ECM (throttle opening). Lock-up piston operation will then be con-
trolled.
Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
When the accelerator pedal is depressed (less than 2.0/8) in lock-up condition, the engine speed should not
change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-II Reference ValueBCS0011P
On Board Diagnosis LogicBCS0011Q
Diagnostic trouble code “T/C CLUTCH SOL/V” with CONSULT-II or 7th judgement flicker without CONSULT-II
is detected when TCM detects an improper voltage drop when it tries to operate solenoid valve.
Possible CauseBCS0011R

Torque converter clutch solenoid valve

Harness or connector
(Solenoid circuit is open or shorted.)
DTC Confirmation ProcedureBCS0011S
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 that the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II and
wait at least 1 second.
3. Start engine and maintain the following condition for at least 5
consecutive seconds.
VEHICLE SPEED: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
4. If DTC is detected, go to AT- 1 0 7 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle in D
1 → D2 → D3 → D4 → D4 lock-up position.
3. Perform self-diagnosis. Refer to AT- 7 6 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 1 0 7 , "
Diagnostic Procedure" .
Item name Condition Display value (Approx.)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%
BCIA0031E

AT-116
ENGINE SPEED SIGNAL

ENGINE SPEED SIGNALPFP:24825
DescriptionBCS00124
The engine speed signal is sent from ECM to TCM.
CONSULT-II Reference ValueBCS00125
On Board Diagnosis LogicBCS00126
Diagnostic trouble code “ENGINE SPEED SIG” with CONSULT-II or 9th judgement flicker without CONSULT-
II is detected when TCM does not receive the proper voltage signal from ECM.
Possible CauseBCS00127
Harness or connector
(Sensor circuit is open or shorted.)
DTC Confirmation ProcedureBCS00128
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-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
4. If DTC is detected, go to AT- 11 8 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 10 seconds.
Selector lever position: “D” position
Vehicle speed: Higher than 10 km/h (6 MPH)
Throttle position: Greater than 1.0/8 of the full throttle position
3. Perform self-diagnosis. Refer to AT- 7 6 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 11 8 , "
Diagnostic Procedure" .
Item name Condition Display value
ENGINE SPEED Engine runningApproximately matches the tachometer
reading.
BCIA0031E

AT-226
ON-VEHICLE SERVICE

3. Disconnect terminal cord assembly harness connector.
4. Remove snap ring from terminal body.
5. Remove terminal cord assembly by pushing terminal body into
transaxle case.
6. Remove engine under cover.
7. Remove front LH nut of front suspension member, and then
lower front LH of front suspension member to secure a space for
removing control valve assembly.
8. Drain ATF from A/T. Refer to AT- 1 5 , "
Changing A/T Fluid" .
9. Remove oil pan and oil pan gasket.
10. Check foreign materials in oil pan to help determine causes of
malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, frictional material (clutches, band) may need
replacement. A tacky film that will not wipe clean indicates var-
nish build up. Varnish can cause valves, servo, and clutches to
stick and can inhibit pump pressure.

If frictional material is detected, replace radiator after
repair of A/T. Refer to CO-13, "
RADIATOR" , CO-16,
"RADIATOR (ALUMINUM TYPE)" (QR engine) or CO-37,
"RADIATOR" , CO-40, "RADIATOR (ALUMINUM TYPE)"
(VQ engine).
11. Remove control valve assembly fixing bolts A, B and C .
SCIA4853E
SCIA3153E
SCIA3476E

AT-238
AIR BREATHER HOSE

REMOVAL AND INSTALLATION (QR20DE ENGINE MODELS)
During removal and installation of air breather hose (air duct side) be careful of the following.

Secure a mark (A) when installing air breather hose (air duct
side) to air duct so as to see the mark.

Install air breather hose (air duct side) to oil catch tank with a
mark (B) facing up. Insert air breather hose into oil catch tank
until it reaches the point where the winding radius stops.
CAUTION:
When installing an air breather hose (air duct side), be careful
not to be crushed or blocked by folding or bending the hose.
REMOVAL AND INSTALLATION (VQ23DE ENGINE MODELS)
During removal and installation of air breather hose (air duct side) be careful of the following.

Secure a mark (A) when installing air breather hose (air duct
side) to air duct so as not to see the mark.

Install air breather hose (air duct side) to oil catch tank with a
mark (B) facing up. Insert air breather hose into oil catch tank
until it reaches the point where the winding radius stops.
SCIA3022E
SCIA3020E

TRANSAXLE ASSEMBLY
AT-243
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4. Turn crankshaft, and remove four tightening bolts for drive plate
and torque converter.
CAUTION:
Crankshaft should be rotated clockwise, viewed from front
of engine.
5. Remove four bolts in figure.
6. Remove air breather hose. Refer to AT- 2 3 6 , "
AIR BREATHER
HOSE" .
7. Remove transaxle assembly and engine assembly together
from vehicle. Refer to EM-223, "
Removal and Installation" .
8. Remove front suspension member from transaxle assembly and
engine assembly. Refer to FSU-17, "
FRONT SUSPENSION
MEMBER" .
9. Remove drive shaft. Refer to FA X - 8 , "
FRONT DRIVE SHAFT" .
10. Remove front engine mounting bracket (front). Refer to EM-223,
"Removal and Installation" .
11. Remove rear engine mounting bracket (rear). Refer to EM-223, "
Removal and Installation" .
12. Remove A/T fluid level gauge.
13. Remove A/T fluid charging pipe.
14. Disconnect harness connector and wire harness.
15. Remove crankshaft position sensor (POS), from engine assembly. Refer to EM-145, "
Removal and Instal-
lation" .
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc., to get on sensor's front edge magnetic area.

Do not place in an area affected by magnetism.
16. Remove starter motor. Refer to SC-18, "
Removal and Installation" .
17. Remove engine mounting insulator (LH) and stopper. Refer to EM-223, "
Removal and Installation" .
18. Remove transaxle assembly fixing bolts with power tool.
19. Remove transaxle assembly from engine assembly.
CAUTION:
Secure torque converter to prevent it from dropping.
SCIA3138E
SCIA3139E
SCIA3143E