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Page 401 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-71
[QG (WITH EURO-OBD)]
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1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Power steering

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NISSAN ALMERA N16 2003 Electronic Repair Manual EC-438
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
Description for Work Flow
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred u

EC-438
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
Description for Work Flow
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using the
“DIAGNOSTIC WORK SHEET”, EC-440
.
STEP IIBefore confirming the concern, check and write down (print out using CONSULT-II) the (1st trip) DTC and the (1st
trip) freeze frame data, then erase the DTC and the data. (Refer to EC-430
.) The (1st trip) DTC and the (1st trip)
freeze frame data can be used when duplicating the incident at STEP III & IV.
If the incident cannot be verified, perform EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Study the relationship between the cause, specified by (1st trip) DTC, and the symptom described by the customer.
(The “Symptom Matrix Chart” will be useful. See EC-448
.)
Also check related service bulletins for information.
STEP IIITry to confirm the symptom and under what conditions the incident occurs.
The “DIAGNOSTIC WORK SHEET” and the freeze frame data are useful to verify the incident. Connect CONSULT-II
to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IVTry to detect the (1st trip) DTC by driving in (or performing) the “DTC Confirmation Procedure”. Check and read the
(1st trip) DTC and (1st trip) freeze frame data by using CONSULT-II or GST.
During the (1st trip) DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO TRIG)
mode and check real time diagnosis results.
If the incident cannot be verified, perform EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
In case the “DTC Confirmation Procedure” is not available, perform the “Overall Function Check” instead. The (1st
trip) DTC cannot be displayed by this check, however, this simplified “check” is an effective alternative.
The “NG” result of the “Overall Function Check” is the same as the (1st trip) DTC detection.
STEP VTake the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC PXXXX.
If the normal code is indicated, proceed to the BASIC INSPECTION. (Refer to EC-443
.) If COSULT-II is available,
perform “DATA MONITOR (SPEC)” mode with CONSULT-II and proceed to the “TOROUBLE DIAGNOSIS – SPECI-
FICATION VALUE”. (Refer to EC-481
.) (If malfunction is detected, proceed to “PERAIR/REPLACE”.) Then perform
inspections according to the Symptom Matrix Chart. (Refer to EC-448
.)
STEP VIIdentify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect the
system for mechanical binding, loose connectors or wiring damage using (tracing) “Harness Layouts”.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR
(AUTO TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CONSULT-II.
Refer to EC-458
, EC-475 .
The “Diagnostic Procedure” in EC section contains a description based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer to “Circuit Inspection” in
GI-22.
Repair or replace the malfunction parts.
If malfunctioning part cannot be detected, perform EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT" .
STEP VIIOnce you have repaired the circuit or replaced a component, you need to run the engine in the same conditions and
circumstances which resulted in the customer's initial complaint.
Perform the “DTC Confirmation Procedure” and confirm the normal code [DTC No. P0000] is detected. If the incident
is still detected in the final check, perform STEP VI by using a method different from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) (1st trip) DTC in ECM
and TCM (Transmission control module). (Refer to EC-430, "
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC
INFORMATION" .)

Page 773 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-443
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Basic InspectionEBS00KEU
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfu

Page 779 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-449
[QG (WITHOUT EURO-OBD)]
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1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
ECM 223333

Page 1101 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DESCRIPTION FOR WORK FLOW=NJEC0631S01
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using
the “DIAGNOSTIC WORKSHEET”,

DESCRIPTION FOR WORK FLOW=NJEC0631S01
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using
the “DIAGNOSTIC WORKSHEET”, EC-44.
STEP IIBefore confirming the concern, check and write down (print out using CONSULT-II) the DTC, then erase the
DTC. Refer to EC-34.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
Study the relationship between the cause, specified by DTC, and the symptom described by the customer. (The
“Symptom Matrix Chart” will be useful. Refer to EC-53.) Also check relatedservice bulletins for information.
STEP IIITry to confirm the symptom and under what conditions the incident occurs.
The “DIAGNOSTIC WORK SHEET” is useful to verify the incident. Connect CONSULT-II to the vehicle in DATA
MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IVTry to detect the DTC by driving in (or performing) the “DTC Confirmation Procedure”. Check and read the DTC
by using CONSULT-II.
During the DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO TRIG)
mode and check real time diagnosis results.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
In case the “DTC Confirmation Procedure” is not available, perform the “Overall Function Check” instead. The
DTC cannot be displayed by this check, however, this simplified “check” isan effective alternative.
The “NG” result of the “Overall Function Check” is the same as the DTC detection.
STEP VTake the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTCPXXXX.
If the normal code is indicated, proceed to the Basic Inspection, EC-48. Then perform inspections according to
the Symptom Matrix Chart. Refer to EC-53.
STEP VIIdentify where to begin diagnosis based on the relationship study betweensymptom and possible causes.
Inspect the system for mechanical binding, loose connectors or wiring damage using (tracing) “Harness Layouts”.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR
(AUTO TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CON-
SULT-II. Refer to EC-66 or EC-63.
The “Diagnostic Procedure” in EC section contains a description based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer to GI-25, “Circuit
Inspection”.
Repair or replace the malfunction parts.
If the malfunctioning part cannot be detected, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT”, EC-71.
STEP VIIOnce you have repaired the circuit or replaced a component, you need to run the engine in the same conditions
and circumstances which resulted in the customer’s initial complaint.
Perform the “DTC Confirmation Procedure” and confirm the normal code (DTCP0000 or 0505) is detected. If the
incident is still detected in the final check, perform STEP VI by using a different method from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) DTC in ECM.
(Refer to EC-34.)GI
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TROUBLE DIAGNOSIS — INTRODUCTIONYD
Work Flow (Cont’d)
EC-47

Page 1102 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Basic InspectionNJEC0632Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
Headlamp switch is OFF,
On vehicles equipped with daytime light systems, set
lighting switc

Page 1497 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-41
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Malfunction Indicator (MI)ECS007NR
1. The malfunction indicator lamp will light up when the ignition
switch

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-41
[EURO-OBD]
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Malfunction Indicator (MI)ECS007NR
1. The malfunction indicator lamp will light up when the ignition
switch is turned ON without the engine running. This is for
checking the lamp.
●If the malfunction indicator does not light up, refer to EC-397
or EC-715 .
(Or see MI & CONSULT-II in EC section. Refer to EC-49
, EC-
87 .
2. When the engine is started, the malfunction indicator should
turned OFF.
If the lamp remains ON, the on board diagnostic system has
detected an emission-related (EURO-OBD) malfunction. For
detail, refer to EC-36.
CONSULT-IIECS007NS
After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” AT- 4 1 , place check marks for
results on the “DIAGNOSTIC WORKSHEET”, AT- 5 7
. Reference pages are provided following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid valve).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoid valves, sensors, etc.) may be malfunctioning. Check
mechanical parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
1. Turn on CONSULT-II and touch “ENGINE” for EURO-OBD
detected items or touch “A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground cir-
cuit. Refer to AT- 1 0 6 , "
TCM Terminals and Reference Value" . If
result is NG, refer to EL-11, "POWER SUPPLY ROUTING".
2. Touch “SELF DIAGNOSIS”.
Display shows malfunction experienced since the last erasing
operation.
CONSULT-II performs “real time diagnosis”.
Also, any malfunction detected while in this mode will be dis-
played at real time.
SAT652J
SAT014K
SAT987J

Page 1589 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0731 A/T 1ST GEAR FUNCTION
AT-133
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DTC P0731 A/T 1ST GEAR FUNCTIONPFP:31940
DescriptionECS007OI
●This is an OBD-II self-diagnostic item and not available in

DTC P0731 A/T 1ST GEAR FUNCTION
AT-133
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DTC P0731 A/T 1ST GEAR FUNCTIONPFP:31940
DescriptionECS007OI
●This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.
●This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
●This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open.
*: P0731 is detected.Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1 ” or “D4 ”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2 ” or “D3 ”.)0V
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1 ” or “D2 ”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3 ” or “D4 ”.)0V
Gear position supposed by TCM 1 2 3 4
In case of gear position with no malfunctions 1 2 3 4
In case of gear position with shift solenoid valve A stuck open2* 2 3 3
In case of gear position with shift solenoid valve B stuck open4* 3 3 4
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T 1ST GR FNCTN
A/T cannot be shifted to the 1st gear posi-
tion even if electrical circuit is good.
●Shift solenoid valve A
●Shift solenoid valve B
●Each clutch
●Hydraulic control circuit : P0731

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