Back NISSAN TEANA 2003 Workshop Manual

CVT-166
TROUBLE DIAGNOSIS FOR SYMPTOMS

In “P” Position, Vehicle Moves Forward or Backward When PushedBCS001MD
SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch circuit?
YES >> Check PNP switch circuit. Refer to CVT-62, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-179, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-178, "
Adjustment of CVT Position" .
3. CHECK SYMPTOM
Check again. Refer to CVT-37, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-193, "
Removal and Installation" .
In “N” Position, Vehicle MovesBCS001ME
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch circuit?
YES >> Check PNP switch circuit. Refer to CVT-62, "DTC P0705 PARK/NEUTRAL POSITION SWITCH" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-179, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-178, "
Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-13, "
Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK SYMPTOM
Check again. Refer to CVT-37, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.

CVT-168
TROUBLE DIAGNOSIS FOR SYMPTOMS

Vehicle Does Not Creep Backward in “R” PositionBCS001MG
SYMPTOM:
Vehicle does not creep backward when selecting “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-47, "Display Items List" .
NO >> GO TO 2.
2. CHECK CVT POSITION
Check CVT position. Refer to CVT-179, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT podition. Refer to CVT-178, "
Adjustment of CVT Position" .
3. CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-13, "
Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4. CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-33, "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-34, "
Judgement of Line Pressure Test" .
5. CHECK SYMPTOM
Check again. Refer to CVT-37, "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-40, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-193, "Removal and Installation" .
NG >> Repair or replace damaged parts.

SHIFT CONTROL SYSTEM
CVT-179
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CVT

Checking of CVT PositionBCS001MO
1. Place selector lever in “P” position, and turn ignition switch ON. (Do not start engine.)
2. Make sure selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
make sure selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the transaxle body.
5. The method of operating the lever to individual positions cor-
rectly should be as shown in the figure.
6. Confirm the back-up lamps illuminate only when lever is placed
in the “R” position. Confirm the back-up lamps do not illuminate
when the selector lever is pushed toward the “R” position side
with the gear position remained in the “P” or “N” position.
7. Confirm the engine can only be started with the selector lever in
the “P” and “N” positions.
8. Make sure transaxle is locked completely in “P” position.
9. When selector lever is set to manual shift gate, make sure man-
ual mode is displayed on combination meter.
Shift selector lever to “+” and “-” sides, and make sure set shift position changes.
SCIA4595E

EC-10
[QR]
INDEX FOR DTC

[QR]INDEX FOR DTCPFP:00024
DTC No. IndexBBS005B7
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-113, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
DTC*1Items
(CONSULT-II screen terms)Reference page
CONSULT-II
ECM*
2
No DTC
Flashing*3NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.EC-37
U1000
1000*4CAN COMM CIRCUITEC-113
U1001
1001*4CAN COMM CIRCUITEC-113
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-116
P0102 0102 MAF SEN/CIRCUITEC-124
P0103 0103 MAF SEN/CIRCUITEC-124
P0117 0117 ECT SEN/CIRCEC-131
P0118 0118 ECT SEN/CIRCEC-131
P0122 0122 TP SEN 2/CIRCEC-136
P0123 0123 TP SEN 2/CIRCEC-136
P0132 0132 HO2S1 (B1)EC-143
P0134 0134 HO2S1 (B1)EC-150
P0222 0222 TP SEN 1/CIRCEC-157
P0223 0223 TP SEN 1/CIRCEC-157
P0327 0327 KNOCK SEN/CIRC-B1EC-164
P0328 0328 KNOCK SEN/CIRC-B1EC-164
P0335 0335 CKP SEN/CIRCUITEC-169
P0340 0340 CMP SEN/CIRC-B1EC-176
P0500 0500 VEH SPEED SEN/CIRCEC-183
P0550 0550 PW ST P SEN/CIRCEC-185
P0605 0605 ECMEC-190
P1065 1065 ECM BACK UP/CIRCUITEC-193
P1121 1121 ETC ACTREC-197
P1122 1122 ETC FUNCTION/CIRCEC-200
P1124 1124 ETC MOT PWREC-207
P1126 1126 ETC MOT PWREC-207
P1128 1128 ETC MOTEC-213
P1217 1217 ENG OVER TEMPEC-218
P1225 1225 CTP LEARNINGEC-229
P1226 1226 CTP LEARNINGEC-231
P1229 1229 SENSOR POWER/CIRCEC-233
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-32
P1706 1706 P-N POS SW/CIRCUITEC-238
P1720 1720 V/SP SEN (A/T OUT)EC-243

EC-12
[QR]
INDEX FOR DTC

Alphabetical IndexBBS005B8
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-113, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*1
Reference page
CONSULT-II
ECM*2
APP SEN 1/CIRC P2122 2122EC-251
APP SEN 1/CIRC P2123 2123EC-251
APP SEN 2/CIRC P2127 2127EC-258
APP SEN 2/CIRC P2128 2128EC-258
APP SENSOR P2138 2138EC-272
BRAKE SW/CIRCUIT P1805 1805EC-245
CAN COMM CIRCUIT U1000
1000*4EC-113
CAN COMM CIRCUIT U1001
1001*4EC-113
CKP SEN/CIRCUIT P0335 0335EC-169
CMP SEN/CIRC-B1 P0340 0340EC-176
CTP LEARNING P1225 1225EC-229
CTP LEARNING P1226 1226EC-231
ECM P0605 0605EC-190
ECM BACK UP/CIRCUIT P1065 1065EC-193
ECT SEN/CIRC P0117 0117EC-131
ECT SEN/CIRC P0118 0118EC-131
ENG OVER TEMP P1217 1217EC-218
ETC ACTR P1121 1121EC-197
ETC FUNCTION/CIRC P1122 1122EC-200
ETC MOT P1128 1128EC-213
ETC MOT PWR P1124 1124EC-207
ETC MOT PWR P1126 1126EC-207
HO2S1 (B1) P0132 0132EC-143
HO2S1 (B1) P0134 0134EC-150
INT/V TIM CONT-B1 P0011 0011EC-116
KNOCK SEN/CIRC-B1 P0327 0327EC-164
KNOCK SEN/CIRC-B1 P0328 0328EC-164
MAF SEN/CIRCUIT P0102 0102EC-124
MAF SEN/CIRCUIT P0103 0103EC-124
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-32
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*3EC-37
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
P-N POS SW/CIRCUIT P1706 1706EC-238
PW ST P SEN/CIRC P0550 0550EC-185
SENSOR POWER/CIRC P1229 1229EC-233
TP SEN 1/CIRC P0222 0222EC-157

EC-22
[QR]
ENGINE CONTROL SYSTEM

MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system provides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can then better reduce CO, HC and NOx emissions. This system uses
heated oxygen sensor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The
ECM adjusts the injection pulse width according to the sensor voltage signal. For more information about
heated oxygen sensor 1, refer to EC-143
. This maintains the mixture ratio within the range of stoichiometric
(ideal air-fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the three way catalyst (manifold). Even if the switching
characteristics of heated oxygen sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal
from heated oxygen sensor 2.
Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.

Deceleration and acceleration

High-load, high-speed operation

Malfunction of heated oxygen sensor 1 or its circuit

Insufficient activation of heated oxygen sensor 1 at low engine coolant temperature

High engine coolant temperature

During warm-up

After shifting from N to D

When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from heated oxygen
sensor 1. This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as orig-
inally designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic
changes during operation (i.e., fuel injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an
increase in fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
PBIB2953E

EC-34
[QR]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

*1: 1st trip DTC No. is the same as DTC No.
*2: In Diagnostic Test Mode II (Self-diagnostic results).
*3: The troubleshooting for this DTC needs CONSULT-II.
*4: When engine is running.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MI will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MI lights up. In other words,
the DTC is stored in the ECM memory and the MI lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
TP SEN 2/CIRC P0123 0123 1×EC-136
HO2S1 (B1) P0132 0132 2×EC-143
HO2S1 (B1) P0134 0134 2×EC-150
TP SEN 1/CIRC P0222 0222 1×EC-157
TP SEN 1/CIRC P0223 0223 1×EC-157
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-164
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-164
CKP SEN/CIRCUIT P0335 0335 2×EC-169
CMP SEN/CIRC-B1 P0340 0340 2×EC-176
VEH SPEED SEN/CIRC P0500 0500 2×EC-183
PW ST P SEN/CIRC P0550 0550 2 —EC-185
ECM P0605 0605 1 or 2× or —EC-190
ECM BACK UP/CIRCUIT P1065 1065 2×EC-193
ETC ACTR P1121 1121 1×EC-197
ETC FUNCTION/CIRC P1122 1122 1×EC-200
ETC MOT PWR P1124 1124 1×EC-207
ETC MOT PWR P1126 1126 1×EC-207
ETC MOT P1128 1128 1×EC-213
ENG OVER TEMP P1217 1217 1×EC-218
CTP LEARNING P1225 1225 2 —EC-229
CTP LEARNING P1226 1226 2 —EC-231
SENSOR POWER/CIRC P1229 1229 1×EC-233
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —EC-32
P-N POS SW/CIRCUIT P1706 1706 2×EC-238
V/SP SEN (A/T OUT) P1720 1720 2 —EC-243
BRAKE SW/CIRCUIT P1805 1805 1×EC-245
APP SEN 1/CIRC P2122 2122 1×EC-251
APP SEN 1/CIRC P2123 2123 1×EC-251
APP SEN 2/CIRC P2127 2127 1×EC-258
APP SEN 2/CIRC P2128 2128 1×EC-258
TP SENSOR P2135 2135 1×EC-265
APP SENSOR P2138 2138 1×EC-272
Items
(CONSULT-II screen terms)DTC*1
Trip MIReference
page
CONSULT-II
ECM*2

EC-38
[QR]
ON BOARD DIAGNOSTIC (OBD) SYSTEM


Always ECM returns to Diagnostic Test Mode I after ignition switch is turned OFF.
How to Set Diagnostic Test Mode II (Self-Diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MI starts
blinking.
4. Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
How to Set Diagnostic Test Mode II (Heated Oxygen Sensor 1 Monitor)
1. Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-38, "How to Set Diagnostic
Test Mode II (Self-Diagnostic Results)" .
2. Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
How to Erase Diagnostic Test Mode II (Self-Diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-38, "How to Set Diagnostic Test
Mode II (Self-Diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to DI-35,
"WARNING LAMPS" or see EC-344, "MI & DATA LINK CONNECTORS" .
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING

These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MI as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MI does not illuminate in diagnostic test mode
I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MI illumi-
nates in diagnostic test mode II (SELF-DIAGNOSTIC RESULTS), it is a DTC; if two or more codes are dis-
PBIB0092E
MI Condition
ON When the malfunction is detected.
OFF No malfunction.

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-39
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played, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified
codes can be identified by using the CONSULT-II. A DTC will be used as an example for how to read a code.
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. (See EC-10, "
INDEX FOR DTC" )
How to Erase Diagnostic Test Mode II (Self-Diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to EC-
37, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .

If the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.

Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the MI
comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.
PBIA3905E
MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean
Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system

TROUBLE DIAGNOSIS
EC-79
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)113 B/R Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch
ON
[Engine is running]0 - 1.0V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B
BECM ground[Engine is running]

Idle speedBody ground
11 9
120R/G
R/GPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
121 W/LPower supply for ECM
(Back-up)[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)