U1001 NISSAN LATIO 2010 Service Repair Manual

NATS (NISSAN ANTI-THEFT SYSTEM)BL-259
< SERVICE INFORMATION >
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This indication means that malfunction have been detected in NATS and engine control system.
>> GO TO 8
8.NATS TROUBLE DIAGNOSIS
Repair NATS according to self-diagnosis results refer to NATS (if necessary, perform “C/U INITIALZATIN” with
CONSULT-III.)
NOTE:
Do not erase “SELF-DIAGNOSI S” by using CONSULT-III.
>> GO TO 9
9.IDENTIFYING ENGINE CONTROL MALFUNCTION
Check engine “SELF-DIAGNOSIS” records with a general ized program card instead of the NATS program
card.
>> GO TO 10
10.ENGINE CONTROL SYSTEM TROUBLE DIAGNOSIS
Repair engine control system if engine related malfunction is detected.
With engine diagnostic codes present, refer to EC-468, "
DTCIndex" (HR16DE) or EC-503, "U0101-U1001"
(MR18DE).
Without engine diagnostic codes present, refer to EC-484, "
Symptom Table" (HR16DE) or EC-585, "Trouble
Diagnosis Introduction" (MR18DE).
NOTE:
If only “NATS MALFUNCTION” is display ed, erase the self-diagnosis results.
>> GO TO 11
11 .STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> GO TO 12
NG >> GO TO 2
12.ERASE SELF-DIAGNOSIS
Erase both NATS and ENGINE "SELF-DI AGNOSIS" records by using CONSULT-III NATS program card.
>> GO TO 13
13.COMFIRMATION
Perform running test with CONSULT-II I in engine “SELF-DIAGNOSIS” mode.
“NO DTC” is displayed >> Inspection End.
Malfunction information is displayed >>GO TO 2
Trouble DiagnosisINFOID:0000000005396710
SYMPTOM MATRIX CHART 1
Revision: January 20102010 Versa

EC-2
CAN COMMUNICATION ...................................59
System Description .................................................59
COOLING FAN CONTROL ...............................60
System Diagram .................................................. ...60
System Description .................................................60
Component Parts Location ...................................62
Component Description ..........................................66
EVAPORATIVE EMISSION SYSTEM ...............68
System Diagram .................................................. ...68
System Description .................................................68
Component Parts Location ...................................72
Component Description .........................................76
INTAKE VALVE TIMING CONTROL .................78
System Diagram .................................................. ...78
System Description .................................................78
Component Parts Location ...................................79
Component Description ..........................................83
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....84
Diagnosis Description .......................................... ...84
CONSULT-III Function ...........................................98
Diagnosis Tool Function ......................................104
COMPONENT DIAGNOSIS .......................106
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................ .
106
Description ........................................................... ..106
Component Function Check ..................................106
Diagnosis Procedure .............................................107
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
114
Description ........................................................... ..114
Diagnosis Procedure .............................................114
POWER SUPPLY AND GROUND CIRCUIT ...115
Wiring Diagram .................................................... ..115
Diagnosis Procedure .............................................115
Ground Inspection .................................................119
U0101 CAN COMM CIRCUIT ..........................120
Description ........................................................... ..120
DTC Logic ..............................................................120
Wiring Diagram ......................................................121
Diagnosis Procedure .............................................121
U0140 CAN COMM CIRCUIT ..........................122
Description ........................................................... ..122
DTC Logic ..............................................................122
Wiring Diagram ......................................................123
Diagnosis Procedure .............................................123
U1001 CAN COMM CIRCUIT ..........................124
Description ........................................................... ..124
DTC Logic ..............................................................124
Wiring Diagram ......................................................125
Diagnosis Procedure .............................................125
P0011 IVT CONTROL ......................................126
DTC Logic ............................................................ .126
Diagnosis Procedure .............................................127
Component Inspection ..........................................128
P0031, P0032 A/F SENSOR 1 HEATER ..........130
Description ........................................................... .130
DTC Logic .............................................................130
Wiring Diagram .....................................................131
Diagnosis Procedure .............................................131
Component Inspection ..........................................133
P0037, P0038 HO2S2 HEATER .......................134
Description ........................................................... .134
DTC Logic .............................................................134
Wiring Diagram .....................................................135
Diagnosis Procedure .............................................135
Component Inspection ..........................................137
P0075 IVT CONTROL SOLENOID VALVE ......138
Description ........................................................... .138
DTC Logic .............................................................138
Wiring Diagram .....................................................139
Diagnosis Procedure .............................................139
Component Inspection ..........................................140
P0101 MAF SENSOR .......................................142
Description ........................................................... .142
DTC Logic .............................................................142
Component Function Check .................................143
Wiring Diagram .....................................................145
Diagnosis Procedure .............................................145
Component Inspection ..........................................147
P0102, P0103 MAF SENSOR ..........................150
Description ........................................................... .150
DTC Logic .............................................................150
Wiring Diagram .....................................................151
Diagnosis Procedure .............................................151
Component Inspection ..........................................153
P0112, P0113 IAT SENSOR ............................156
Description ............................................................156
DTC Logic .............................................................156
Wiring Diagram .....................................................157
Diagnosis Procedure .............................................157
Component Inspection ..........................................158
P0116 ECT SENSOR .......................................159
Description ............................................................159
DTC Logic .............................................................159
Diagnosis Procedure .............................................160
Component Inspection ..........................................160
P0117, P0118 ECT SENSOR ...........................161
Description ............................................................161
DTC Logic .............................................................161
Wiring Diagram .....................................................162
Diagnosis Procedure .............................................162
Component Inspection ..........................................163
Revision: January 20102010 Versa

EC-7
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FUEL PRESSURE .......................................... ..496
Inspection ............................................................ ..496
EVAP LEAK CHECK ........................................498
Inspection ............................................................ ..498
ON-VEHICLE REPAIR ...............................500
EVAP CANISTER .............................................500
Exploded View .................................................... ..500
Removal and Installation .......................................500
Inspection ............................................................ ..501
SERVICE DATA AND SPECIFICATIONS
(SDS) ......... ................................. ................
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SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ..
502
Idle Speed ........................................................... ..502
Ignition Timing .......................................................502
Calculated Load Value ..........................................502
Mass Air Flow Sensor ...........................................502
MR18DE
SERVICE INFORMATION .. .......................
503
INDEX FOR DTC ............................................ ..503
U0101-U1001 ...................................................... ..503
P0011-P0075 ........................................................503
P0101-P0128 ........................................................503
P0130-P0183 ........................................................504
P0222-P0420 ........................................................504
P0441-P0463 ........................................................505
P0500-P0643 ........................................................505
P0705-P0734 ........................................................506
P0740-P0840 ........................................................506
P0850-P1574 ........................................................507
P1610-P1615 ........................................................507
P1715-P1805 ........................................................507
P2100-P2A00 ........................................................508
PRECAUTIONS ................................................509
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
509
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ..
509
Precaution for Procedure without Cowl Top Cover ..510
On Board Diagnosis (OBD) System of Engine and
A/T, CVT ...............................................................
510
Precaution .............................................................510
PREPARATION ................................................514
Special Service Tool ........................................... ..514
Commercial Service Tool ......................................514
ENGINE CONTROL SYSTEM ..........................516
Schematic ........................................................... ..516
Multiport Fuel Injection (MFI) System ...................516
Electronic Ignition (EI) System ..............................519
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. ..
519
AIR CONDITIONING CUT CONTROL ............521
Input/Output Signal Chart ......................................521
System Description ................................................521
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ............................................................
522
System Description ................................................522
Component Description .........................................523
CAN COMMUNICATION .................................524
System Description ................................................524
EVAPORATIVE EMISSION SYSTEM .............525
Description .............................................................525
Component Inspection ...........................................527
Exploded View .......................................................529
Removal and Installation .......................................529
How to Detect Fuel Vapor Leakage .......................530
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ....................................................
532
System Description ................................................532
Diagnosis Procedure .............................................532
Component Inspection ...........................................535
POSITIVE CRANKCASE VENTILATION .......538
Description .............................................................538
Component Inspection ...........................................538
NVIS (NISSAN VEHICLE IMMOBILIZER SYS-
TEM-NATS) .....................................................
540
Description .............................................................540
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..541
Introduction ............................................................541
Two Trip Detection Logic .......................................541
Emission-related Diagnostic Information ...............542
Malfunction Indicator Lamp (MIL) ..........................565
OBD System Operation Chart ...............................568
BASIC SERVICE PROCEDURE .....................574
Basic Inspection ....................................................574
Idle Speed and Ignition Timing Check ...................578
Procedure After Replacing ECM ...........................579
VIN Registration ....................................................580
Accelerator Pedal Released Position Learning .....580
Throttle Valve Closed Position Learning ...............580
Idle Air Volume Learning .......................................580
Fuel Pressure Check .............................................582
TROUBLE DIAGNOSIS ..................................585
Trouble Diagnosis Introduction ..............................585
DTC Inspection Priority Chart ................................590
Fail-Safe Chart ......................................................590
Symptom Matrix Chart ...........................................592
Engine Control Component Parts Location ...........596
Vacuum Hose Drawing ..........................................602
Circuit Diagram ......................................................603
Revision: January 20102010 Versa

EC-8
ECM Harness Connector Terminal Layout ............605
ECM Terminal and Reference Value ................... ..605
CONSULT-III Function (ENGINE) .........................612
Generic Scan Tool (GST) Function .......................618
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
620
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
624
Description ........................................................... ..624
Testing Condition ...................................................624
Inspection Procedure .............................................624
Diagnosis Procedure .............................................624
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT ........................................................
632
Description ........................................................... ..632
Diagnosis Procedure .............................................632
POWER SUPPLY AND GROUND CIRCUIT ...633
Wiring Diagram .................................................... ..633
Diagnosis Procedure .............................................634
Ground Inspection .................................................638
DTC U0101 CAN COMMUNICATION LINE ....639
Description ........................................................... ..639
On Board Diagnosis Logic .....................................639
DTC Confirmation Procedure ................................639
Wiring Diagram ......................................................640
Diagnosis Procedure .............................................640
DTC U0140 CAN COMMUNICATION LINE ....641
Description ........................................................... ..641
On Board Diagnosis Logic .....................................641
DTC Confirmation Procedure ................................641
Wiring Diagram ......................................................642
Diagnosis Procedure .............................................642
DTC U1001 CAN COMMUNICATION LINE ....643
Description ........................................................... ..643
On Board Diagnosis Logic .....................................643
DTC Confirmation Procedure ................................643
Wiring Diagram ......................................................644
Diagnosis Procedure .............................................644
DTC P0011 IVT CONTROL .............................645
Description ........................................................... ..645
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
645
On Board Diagnosis Logic .....................................646
DTC Confirmation Procedure ................................646
Diagnosis Procedure .............................................647
Component Inspection ...........................................648
Removal and Installation .......................................648
DTC P0031, P0032 A/F SENSOR 1 HEATER .649
Description ........................................................... ..649
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ..
649
On Board Diagnosis Logic .....................................649
DTC Confirmation Procedure ................................649
Wiring Diagram .................................................... .650
Diagnosis Procedure .............................................651
Component Inspection ..........................................652
Removal and Installation .......................................653
DTC P0037, P0038 HO2S2 HEATER ............ ..654
Description ........................................................... .654
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
654
On Board Diagnosis Logic ....................................654
DTC Confirmation Procedure ................................654
Wiring Diagram .....................................................655
Diagnosis Procedure .............................................656
Component Inspection ..........................................658
Removal and Installation .......................................658
DTC P0075 IVT CONTROL SOLENOID
VALVE ............................................................ ..
659
Component Description ....................................... .659
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
659
On Board Diagnosis Logic ....................................659
DTC Confirmation Procedure ................................659
Wiring Diagram .....................................................660
Diagnosis Procedure .............................................661
Component Inspection ..........................................662
Removal and Installation .......................................663
DTC P0101 MAF SENSOR ............................ ..664
Component Description ....................................... .664
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
664
On Board Diagnosis Logic ....................................664
DTC Confirmation Procedure ................................664
Overall Function Check .........................................665
Wiring Diagram .....................................................667
Diagnosis Procedure .............................................668
Component Inspection ..........................................670
Removal and Installation .......................................671
DTC P0102, P0103 MAF SENSOR ................ ..672
Component Description ....................................... .672
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... .
672
On Board Diagnosis Logic ....................................672
DTC Confirmation Procedure ................................672
Wiring Diagram .....................................................674
Diagnosis Procedure .............................................675
Component Inspection ..........................................677
Removal and Installation .......................................678
DTC P0112, P0113 IAT SENSOR .................. ..679
Component Description ....................................... .679
On Board Diagnosis Logic ....................................679
DTC Confirmation Procedure ................................679
Wiring Diagram .....................................................680
Diagnosis Procedure .............................................680
Component Inspection ..........................................682
Removal and Installation .......................................682
Revision: January 20102010 Versa

EC-124
< COMPONENT DIAGNOSIS >[HR16DE]
U1001 CAN COMM CIRCUIT
U1001 CAN COMM CIRCUIT
DescriptionINFOID:0000000005398296
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s
peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC LogicINFOID:0000000005398297
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 3 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> EC-125, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U1001 CAN communication line When ECM is not transmitting or receiving CAN
communication signal other than OBD (emission
related diagnosis) for 2 seconds or more. • Harness or connectors
(CAN communication line is open or
shorted)
Revision: January 20102010 Versa

U1001 CAN COMM CIRCUITEC-125
< COMPONENT DIAGNOSIS > [HR16DE]
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Wiring DiagramINFOID:0000000005398298
Diagnosis ProcedureINFOID:0000000005398299
Go to
LAN-17, "Trouble Diagnosis Flow Chart".
BBWA2626E
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

INDEX FOR DTCEC-503
< SERVICE INFORMATION > [MR18DE]
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SERVICE INFORMATION
INDEX FOR DTC
U0101-U1001INFOID:0000000005532361
*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: The troubleshooting for this DTC needs CONSULT-III.
P0011-P0075INFOID:0000000005532362
*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.
P0101-P0128INFOID:0000000005532363
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
U0101 0101*4LOST COMM (TCM) EC-639
U0140
0140*4LOST COMM (BCM) EC-641
U1001
1001*4CAN COMM CIRCUIT EC-643
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0011 0011 INT/V TIM CONT-B1 EC-645
P00310031 A/F SEN1 HTR (B1) EC-649
P00320032 A/F SEN1 HTR (B1) EC-649
P00370037 HO2S2 HTR (B1) EC-654
P00380038 HO2S2 HTR (B1) EC-654
P00750075 INT/V TIM V/CIR-B1 EC-659
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0101 0101 MAF SEN/CIRCUIT-B1 EC-664
P01020102 MAF SEN/CIRCUIT-B1 EC-672
P01030103 MAF SEN/CIRCUIT-B1 EC-672
P01120112 IAT SEN/CIRCUIT-B1 EC-679
P01130113 IAT SEN/CIRCUIT-B1 EC-679
P01160116 ECT SEN/CIRC EC-683
P01170117 ECT SEN/CIRC EC-683
P01180118 ECT SEN/CIRC EC-683
P01220122 TP SEN 2/CIRC-B1 EC-691
P01230123 TP SEN 2/CIRC-B1 EC-691
P01250125 ECT SENSOR EC-696
Revision: January 20102010 Versa

EC-540
< SERVICE INFORMATION >[MR18DE]
NVIS (NISSAN VEHICLE I
MMOBILIZER SYSTEM-NATS)
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
DescriptionINFOID:0000000005532398
•If the security indicator illuminates with the igni tion switch ON or DTC P1610 - P1615 is displayed in
“SELF DIAGNOSTIC RESULT” mode, perform the trouble diagnosis for corresponding to the
detected DTC. Refer to EC-503, "
U0101-U1001".
• Check that no DTC is displayed in “SELF DIAGNOSIS RESULT” mode of “BCM” before erasing the
detected DTC in “ENGINE” mode with CONSULT-III.
• When replacing ECM, refer to EC-579, "
Procedure After Replacing ECM".
Revision: January 20102010 Versa