NISSAN LATIO 2010 Service Repair Manual

EC-466
< ECU DIAGNOSIS >[HR16DE]
ECM
DTC RELATED ITEM
Detected itemsEngine operating condition in
fail-safe mode Remarks
Malfunction indicator
lamp circuit Engine speed will not rise
more than 2,500 rpm due to
the fuel cut When there is an open circuit on MIL circuit, the ECM cannot warn the driver by
lighting up MIL when there is malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses
are continuously detected as NG for 5 trips, ECM warns the driver that engine
control system malfunctions and MIL circuit is open by means of operating fail-
safe function.
The fail-safe function also operates when above diagnoses except MIL circuit
are detected and demands the driver to repair the malfunction.
DTC No. Detected items
Engine operating condition in fail-safe mode
P0011 Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve control does not function.
P0102
P0103 Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118 Engine coolant tempera-
ture sensor circuit Engine coolant temperature will be determined by ECM based on the following condition.
CONSULT-III displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON
or START 40
°C (104 °F)
More than approx. 4 minutes after
engine starting 80
°C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P0605 ECM (When ECM calculation function is malfunctioning:)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1805 Brake switch ECM controls the electric throttle control actuator by regulating the throttle opening to a
small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
P2100
P2103 Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric throttle control function ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
Revision: January 20102010 Versa

ECM
EC-467
< ECU DIAGNOSIS > [HR16DE]
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DTC Inspection Priority ChartINFOID:0000000005398638
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
P2119 Electric thro
ttle control ac-
tuator (When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the
engine stalls.
The engine can restart in N or P (A/T), Neutral (M/T) position, and engine speed will not
exceed 1,000 rpm or more.
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position
sensor
The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
DTC No. Detected items
Engine operating condition in fail-safe mode
PriorityDetected items (DTC)
1 • U0101 U0140 U1001 CAN communication line • P0101 P0102 P0103 Mass air flow sensor
• P0112 P0113 P0127 Intake air temperature sensor
• P0116 P0117 P0118 P0125 Engine coolant temperature sensor
• P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor
• P0128 Thermostat function
• P0181 P0182 P0183 Fuel tank temperature sensor
• P0327 P0328 Knock sensor
• P0335 Crankshaft position sensor (POS)
• P0340 Camshaft position sensor (PHASE)
• P0460 P0461 P0462 P0463 Fuel level sensor
• P0500 Vehicle speed sensor
• P0605 P0607 ECM
• P0643 Sensor power supply
• P0705 Transmission range switch
• P0850 Park/neutral position (PNP) switch
• P1610 - P1615 NATS
• P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
Revision: January 20102010 Versa

EC-468
< ECU DIAGNOSIS >[HR16DE]
ECM
DTC Index
INFOID:0000000005398639
× :Applicable —: Not applicable
2 • P0031 P0032 Air fuel ratio (A/F) sensor 1 heater
• P0037 P0038 Heated oxygen sensor 2 heater
• P0075 Intake valve timing control solenoid valve
• P0130 P0131 P0132 P0133 P2A00 Air fuel ratio (A/F) sensor 1
• P0137 P0138 P0139 Heated oxygen sensor 2
• P0441 EVAP control system purge flow monitoring
• P0443 P0444 P0445 EVAP canister purge volume control solenoid valve
• P0447 P0448 EVAP canister vent control valve
• P0451 P0452 P0453 EVAP control system pressure sensor
• P0603 ECM power supply
• P0710 P0720 P0725 P0731 P0732 P0733 P0734 P0740 P0744 P0745 P0750 P0755 P1705 P1760 A/T related sensors,
solenoid valves and switches
• P1217 Engine over temperature (OVERHEAT)
• P1805 Brake switch
• P2100 P2103 Throttle control motor relay
• P2101 Electric throttle control function
• P2118 Throttle control motor
3 • P0011 Intake valve timing control • P0171 P0172 Fuel injection system function
• P0300 - P0304 Misfire
• P0420 Three way catalyst function
• P0442 P0456 EV AP control system (SMALL LEAK, VERY SMALL LEAK)
• P0455 EVAP control system (GROSS LEAK)
• P0506 P0507 Idle speed control system
• P1148 Closed loop control
• P1421 Cold start control
• P1715 Input speed sensor
• P2119 Electric throttle control actuator
Priority
Detected items (DTC)
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
U0101 0101*5LOST COMM (TCM) — 1×BEC-120
U0140
0140*5LOST COMM (BCM) — 1×BEC-122
U1001
1001*5CAN COMM CIRCUIT — 2——EC-120
P0000 0000 NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ——
Flashing*8——
P0011 0011 INT/V TIM CONT-B1 ×2 ×BEC-126
P0031 0031 A/F SEN1 HTR (B1) — 2×BEC-130
P0032 0032 A/F SEN1 HTR (B1) — 2×BEC-130
P0037 0037 HO2S2 HTR (B1) — 2×BEC-134
P0038 0038 HO2S2 HTR (B1) — 2×BEC-134
P0075 0075 INT/V TIM V/CIR-B1 — 2×BEC-138
P0101 0101 MAF SEN/CIRCUIT-B1 — 2×BEC-142
P0102 0102 MAF SEN/CIRCUIT-B1 — 1×BEC-150
P0103 0103 MAF SEN/CIRCUIT-B1 — 1×BEC-150
P0112 0112 IAT SEN/CIRCUIT-B1 — 2×BEC-156
P0113 0113 IAT SEN/CIRCUIT-B1 — 2×BEC-156
P0116 0116 ECT SEN/CIRC — 2×BEC-159
P0117 0117 ECT SEN/CIRC — 1×BEC-161
Revision: January 20102010 Versa

ECM
EC-469
< ECU DIAGNOSIS > [HR16DE]
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OP0118 0118 ECT SEN/CIRC
— 1×BEC-161
P0122 0122 TP SEN 2/CIRC-B1 — 1×BEC-165
P0123 0123 TP SEN 2/CIRC-B1 — 1×BEC-165
P0125 0125 ECT SENSOR — 2×BEC-169
P0127 0127 IAT SENSOR-B1 — 2×BEC-172
P0128 0128 THERMSTAT FNCTN — 2×BEC-174
P0130 0130 A/F SENSOR1 (B1) — 2×AEC-176
P0131 0131 A/F SENSOR1 (B1) — 2×BEC-182
P0132 0132 A/F SENSOR1 (B1) — 2×BEC-187
P0133 0133 A/F SENSOR1 (B1) ×2 ×AEC-192
P0137 0137 HO2S2 (B1) ×2 ×AEC-198
P0138 0138 HO2S2 (B1) ×2 ×AEC-206
P0139 0139 HO2S2 (B1) ×2 ×AEC-215
P0171 0171 FUEL SYS-LEAN-B1 — 2×BEC-223
P0172 0172 FUEL SYS-RICH-B1 — 2×BEC-229
P0181 0181 FTT SENSOR — 2×BEC-234
P0182 0182 FTT SEN/CIRCUIT — 2×BEC-239
P0183 0183 FTT SEN/CIRCUIT — 2×BEC-239
P0222 0222 TP SEN 1/CIRC-B1 — 1×BEC-243
P0223 0223 TP SEN 1/CIRC-B1 — 1×BEC-243
P0300 0300 MULTI CYL MISFIRE — 1 or 2×BEC-247
P0301 0301 CYL 1 MISFIRE — 1 or 2×BEC-247
P0302 0302 CYL 2 MISFIRE — 1 or 2×BEC-247
P0303 0303 CYL 3 MISFIRE — 1 or 2×BEC-247
P0304 0304 CYL 4 MISFIRE — 1 or 2×BEC-247
P0327 0327 KNOCK SEN/CIRC-B1 — 2——EC-253
P0328 0328 KNOCK SEN/CIRC-B1 — 2——EC-253
P0335 0335 CKP SEN/CIRCUIT — 2×BEC-257
P0340 0340 CMP SEN/CIRC-B1 — 2×BEC-262
P0420 0420 TW CATALYST SYS-B1 ×2 ×AEC-267
P0441 0441 EVAP PURG FLOW/MON ×2 ×AEC-272
P0442 0442 EVAP SMALL LEAK ×2 ×AEC-278
P0443 0443 PURG VOLUME CONT/V — 2×AEC-285
P0444 0444 PURG VOLUME CONT/V — 2×BEC-291
P0445 0445 PURG VOLUME CONT/V — 2×BEC-291
P0447 0447 VENT CONTROL VALVE — 2×BEC-295
P0448 0448 VENT CONTROL VALVE — 2×BEC-300
P0451 0451 EVAP SYS PRES SEN — 2×AEC-306
P0452 0452 EVAP SYS PRES SEN — 2×BEC-309
P0453 0453 EVAP SYS PRES SEN — 2×BEC-316
P0455 0455 EVAP GROSS LEAK — 2×AEC-323
P0456 0456 EVAP VERY SML LEAK
×*72 ×AEC-329
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa

EC-470
< ECU DIAGNOSIS >[HR16DE]
ECM
P0460 0460 FUEL LEV SEN SLOSH
— 2×AEC-336
P0461 0461 FUEL LEVEL SENSOR — 2×BEC-337
P0462 0462 FUEL LEVL SEN/CIRC — 2×BEC-339
P0463 0463 FUEL LEVL SEN/CIRC — 2×BEC-339
P0500 0500
VEH SPEED SEN/CIRC*6—2×BEC-341
P0506 0506 ISC SYSTEM — 2×BEC-343
P0507 0507 ISC SYSTEM — 2×BEC-345
P0603 0603 ECM BACK UP/CIRCUIT — 2×BEC-347
P0605 0605 ECM — 1 or 2× or — B EC-349
P0607 0607 ECM —1 (A/T)
2 (M/T) ×
(A/T)
— (M/T) B
EC-351
P0643 0643 SENSOR POWER/CIRC — 1×BEC-352
P0705 0705 T/M RANGE SENSOR A — 2×BAT- 9 0
P0710 0710
FLUID TEMP SENSOR A*9—2×BAT- 9 5
P0720 0720
OUTPUT SPEED SENSOR*6—2×BAT- 1 0 0
P0725 0725 ENGINE SPEED — 2×BAT- 1 0 5
P0731 0731
1GR INCORRECT RATIO*9—2×BAT- 1 0 9
P0732 0732
2GR INCORRECT RATIO*9—2×BAT- 11 2
P0733 0733
3GR INCORRECT RATIO*9—2×BAT- 11 5
P0734 0734
4GR INCORRECT RATIO*9—2×BAT- 11 8
P0740 0740 TORQUE CONVERTER — 2×BAT- 1 2 3
P0744 0744 TORQUE CONVERTER — 2×BAT- 1 2 8
P0745 0745 PC SOLENOID A — 2×BAT- 1 3 3
P0750 0750 SHIFT SOLENOID A — 1×BAT- 1 3 8
P0755 0755 SHIFT SOLENOID B — 1×BAT- 1 4 3
P0850 0850 P-N POS SW/CIRCUIT — 2×BEC-356
P1148 1148 CLOSED LOOP-B1 — 1×AEC-361
P1217 1217 ENG OVER TEMP — 1×BEC-362
P1225 1225 CTP LEARNING-B1 — 2——EC-366
P1226 1226 CTP LEARNING-B1 — 2——EC-368
P1421 1421 COLD START CONTROL — 2×AEC-370
P1610 1610 LOCK MODE — 2——BL-259
P1611 1611 ID DISCORD, IMMU-ECM — 2——BL-259
P1612 1612 CHAIN OF ECM-IMMU — 2——BL-259
P1613 1613 ECM INT CIRC-IMMC — 2——BL-259
P1614 1614 CHAIN OF IMMU-KEY — 2——BL-259
P1615 1615 DIFFERENCE OF KEY — 2——BL-259
P1715 1715 IN PULY SPEED — 2——EC-372
P1760 1760 OVER CLUTCH SOLENOID — 2 ×BAT- 1 4 8
P1805 1805 BRAKE SW/CIRCUIT — 2——EC-373
P2100 2100 ETC MOT PWR-B1 — 1×BEC-377
P2101 2101 ETC FNCTN/CIRC-B1 — 1×BEC-381
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa

ECM
EC-471
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*1: 1st trip DTC No. is
the same as DTC No.
*2: This number is prescri bed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: Refer to EC-84, "
Diagnosis Description", “PERMANENT DIAGNOSTIC TROUBLE CODE (PERMANENT DTC)”.
*5: The troubleshooting for this DTC needs CONSULT-III.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*7: SRT code will not be set if the self-diagnostic result is NG.
*8: When the ECM is in the mode that displays SRT status, MIL may flash. For the details, refer to “How to Display SRT Status” in EC-
84, "Diagnosis Description".
*9: When erasing this DTC, al ways use CONSULT-III or GST.
How to Set SRT CodeINFOID:0000000005656812
To set all SRT codes, self-diagnoses for the SRT items must be performed one or more times. Refer to EC-84,
"Diagnosis Description", “SYSTEM READINESS TEST (SRT) CODE”, “SRT Item”.
Each diagnosis may require a long period of actual driving under various conditions.
WITH CONSULT-III
Perform corresponding DTC CONFIRMATION PROCE DURE one by one based on Performance Priority in
the table on “SRT Item”.
WITHOUT CONSULT-III
The most efficient driving pattern in which SRT codes can be properly set is explained below. The driving pat-
tern should be performed one or more times to set all SRT codes.
P2103 2103 ETC MOT PWR — 1×BEC-377
P 2 11 8 2 11 8 E T C M O T- B 1 —1 ×BEC-386
P 2 11 9 2 11 9 E T C A C T R - B 1 —1 ×BEC-390
P2122 2122 APP SEN 1/CIRC — 1×BEC-392
P2123 2123 APP SEN 1/CIRC — 1×BEC-392
P2127 2127 APP SEN 2/CIRC — 1×BEC-396
P2128 2128 APP SEN 2/CIRC — 1×BEC-396
P2135 2135 TP SENSOR-B1 — 1×BEC-401
P2138 2138 APP SENSOR — 1×BEC-405
P2A00 2A00 A/F SENSOR1 (B1) — 2×AEC-410
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa

EC-472
< ECU DIAGNOSIS >[HR16DE]
ECM
DRIVING PATTERN
• The time required for each diagnosis varies with road su
rface conditions, weather, altitude, individual driving
habits, etc.
Zone A refers to the range where the time, required fo r the diagnosis under normal conditions*, is the short-
est.
Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within
zone A.
*: Normal conditions refer to the following:
JMBIA2929GB
Revision: January 20102010 Versa

ECM
EC-473
< ECU DIAGNOSIS > [HR16DE]
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• Sea level
• Flat road
• Ambient air temperature: 20 - 30
°C (68 - 86 °F)
• Diagnosis is performed as quickly as possible under normal conditions. Under different conditions [For example: ambient air temperature other than 20 - 30 °C (68 - 86° F)], diagno-
sis may also be performed.
Pattern 1:
• The engine is started at the engine coolant temperature of −10 to 35 °C (14 to 95 °F)
(where the voltage between the ECM te rminal 38 and ground is 3.0 - 4.3 V).
• The engine must be operated at idle speed until the engine coolant temperature is greater than 70 °C
(158° F) (where the voltage between the ECM te rminal 38 and ground is lower than 1.4 V).
• The engine is started at the fuel tank temperature of warmer than 0 °C (32° F) (where the voltage
between the ECM terminal 43 and ground is less than 4.1 V).
Pattern 2:
• When steady-state driving is performed again even afte r it is interrupted, each diagnosis can be conducted.
In this case, the time required for diagnosis may be extended.
Pattern 3:
• Operate vehicle following the driving pattern shown in the figure.
• Release the accelerator pedal during decelerating vehicle speed from 90 km/h (56 MPH) to 0 km/h (0 MPH).
Pattern 4:
• The accelerator pedal must be held very steady during steady- state driving.
• If the accelerator pedal is moved, the test must be conducted again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56
MPH), then release the accelerator pedal and keep it released for
more than 10 seconds. Depress the accelerator pedal until vehicle
speed is 90 km/h (56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
Suggested Transmission Gear Position for A/T Models
Set the selector lever in the D position.
Suggested Upshift Speeds for M/T Models
Shown below are suggested vehicle speeds for shifting into a higher gear. These suggestions relate to fuel
economy and vehicle performance. Actual upshift speeds will vary according to road conditions, the weather
and individual driving habits.
How to Erase Permanent DTCINFOID:0000000005647832
When a DTC is stored in ECM
When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL shutoff if the same mal-
function is not detected after performing the drivi ng pattern for MIL shutoff three times in a raw.
PBIB2244E
For normal acceleration in low altitude areas
[less than 1,219 m (4,000 ft)]: For quick acceleration in low alti-
tude areas and high altitude areas [over 1,219 m (4,000 ft)]:
Gear change ACCEL shift positi on [km/h (MPH)] CRUISE shift point [km/h (MPH)]km/h (MPH)
1st to 2nd 15 (9) 21 (13) 15 (9)
2nd to 3rd 25 (16) 38 (24)30 (19)
3rd to 4th 40 (25) 55 (34)45 (28)
4th to 5th 45 (28) 74 (46)50 (31)
Revision: January 20102010 Versa

EC-474
< ECU DIAGNOSIS >[HR16DE]
ECM
When a DTC is not stored in ECM
The erasing method depends on a permanent DTC stored in ECM. Refer to the following table.
×
: Applicable —: Not applicable
*: For group, refer to EC-468, "DTCIndex".
Group A
*1: When the same malfunction is de-
tected in two consecutive trips, MIL
will illuminate. *2: MIL will turn off after vehicle is driven
3 times (pattern B) without any mal-
functions.
JSBIA0063GB
Group*Perform “DTC CONFIRMATION PROCEDURE” for applicable DTCs. Driving pattern
BD
A ×——
B— ××
Revision: January 20102010 Versa

ECM
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1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Check permanent DTC. Refer to
EC-84, "
Diagnosis Description".
6. Perform “DTC CONFIRMATION PR OCEDURE” for DTCs which are the same as permanent DTCs stored
in ECM.
7. Turn ignition switch OFF and wait at least 10 seconds.
8. Turn ignition switch ON.
9. Turn ignition switch OFF and wait at least 10 seconds.
10. Turn ignition switch ON.
11. Check permanent DTC. Refer to EC-84, "
Diagnosis Description".
12. Check that the permanent DTCs have been erased.
Group B
*1: When the same malfunction is de- tected in two consecutive trips, MIL
will illuminate.
JSBIA0064GB
Revision: January 20102010 Versa