Nissan Altima L32. Instruction — part 351
ECM
EC-525
< ECU DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
C
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A
EC
N
P
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DTC Inspection Priority Chart
INFOID:0000000004349553
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
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.
P2119
Electric throttle 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 (CVT), 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
EC-526
< ECU DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
ECM
Priority
Detected 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 P0850 Park/neutral position (PNP) switch
• P1550 P1551 P1552 P1553 P1554 Battery current sensor
• P1610 - P1615 NATS
• P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
2
• P0031 P0032 Air fuel ratio (A/F) sensor 1 heater
• P0037 P0038 Heated oxygen sensor 2 heater
• P0043 P0044 Heated oxygen sensor 3 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
• P0143 P0144 P0145 P0146 Heated oxygen sensor 3
• 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
• P0550 Power steering pressure sensor
• P0603 ECM power supply
• P0710 P0715 P0720 P0740 P0744 P0745 P0746 P0776 P0778 P0840 P0845 P1740 P1777 P1778 CVT related sensors,
solenoid valves and switches
• P1217 Engine over temperature (OVERHEAT)
• P1805 Brake switch
• P2004 Tumble control valve motor
• P2014 Tumble control valve position sensor
• 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 EVAP 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
• P1564 ASCD steering switch
• P1572 ASCD brake switch
• P1574 ASCD vehicle speed sensor
• P1715 Primary speed sensor
• P2119 Electric throttle control actuator
• P2423 HC adsorption catalyst
ECM
EC-527
< ECU DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
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M
A
EC
N
P
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DTC Index
INFOID:0000000004349554
×:Applicable —: Not applicable
Items
(CONSULT-III screen terms)
DTC*
1
SRT code
Trip
MIL
Reference page
CONSULT-III
GST*
2
ECM*
3
LOST COMM (TCM)
U0101
0101*
4
—
1
×
LOST COMM (BCM)
U0140
0140*
4
—
1
×
CAN COMM CIRCUIT
U1001
1001*
4
—
2
—
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
P0000
0000
—
—
Flashing*
7
—
INT/V TIM CONT-B1
P0011
0011
—
2
×
A/F SEN1 HTR (B1)
P0031
0031
—
2
×
A/F SEN1 HTR (B1)
P0032
0032
—
2
×
HO2S2 HTR (B1)
P0037
0037
—
2
×
HO2S2 HTR (B1)
P0038
0038
—
2
×
HO2S3 HTR (B1)
P0043
0043
—
2
×
HO2S3 HTR (B1)
P0044
0044
—
2
×
INT/V TIM V/CIR-B1
P0075
0075
—
2
×
MAF SEN/CIRCUIT-B1
P0101
0101
—
2
×
MAF SEN/CIRCUIT-B1
P0102
0102
—
1
×
MAF SEN/CIRCUIT-B1
P0103
0103
—
1
×
IAT SEN/CIRCUIT-B1
P0112
0112
—
2
×
IAT SEN/CIRCUIT-B1
P0113
0113
—
2
×
ECT SEN/CIRC
P0116
0116
—
2
×
ECT SEN/CIRC
P0117
0117
—
1
×
ECT SEN/CIRC
P0118
0118
—
1
×
TP SEN 2/CIRC-B1
P0122
0122
—
1
×
TP SEN 2/CIRC-B1
P0123
0123
—
1
×
ECT SENSOR
P0125
0125
—
2
×
IAT SENSOR-B1
P0127
0127
—
2
×
THERMSTAT FNCTN
P0128
0128
—
2
×
A/F SENSOR1 (B1)
P0130
0130
—
2
×
A/F SENSOR1 (B1)
P0131
0131
—
2
×
A/F SENSOR1 (B1)
P0132
0132
—
2
×
A/F SENSOR1 (B1)
P0133
0133
×
2
×
HO2S2 (B1)
P0137
0137
×
2
×
HO2S2 (B1)
P0138
0138
×
2
×
HO2S2 (B1)
P0139
0139
×
2
×
HO2S3 (B1)
P0143
0143
×
2
×
HO2S3 (B1)
P0144
0144
×
2
×
HO2S3 (B1)
P0145
0145
×
2
×
HO2S3 (B1)
P0146
0146
—
2
×
FUEL SYS-LEAN-B1
P0171
0171
—
2
×
FUEL SYS-RICH-B1
P0172
0172
—
2
×
EC-528
< ECU DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
ECM
FTT SENSOR
P0181
0181
—
2
×
FTT SEN/CIRCUIT
P0182
0182
—
2
×
FTT SEN/CIRCUIT
P0183
0183
—
2
×
TP SEN 1/CIRC-B1
P0222
0222
—
1
×
TP SEN 1/CIRC-B1
P0223
0223
—
1
×
MULTI CYL MISFIRE
P0300
0300
—
2
×
CYL 1 MISFIRE
P0301
0301
—
2
×
CYL 2 MISFIRE
P0302
0302
—
2
×
CYL 3 MISFIRE
P0303
0303
—
2
×
CYL 4 MISFIRE
P0304
0304
—
2
×
KNOCK SEN/CIRC-B1
P0327
0327
—
2
—
KNOCK SEN/CIRC-B1
P0328
0328
—
2
—
CKP SEN/CIRCUIT
P0335
0335
—
2
×
CMP SEN/CIRC-B1
P0340
0340
—
2
×
TW CATALYST SYS-B1
P0420
0420
×
2
×
EVAP PURG FLOW/MON
P0441
0441
×
2
×
EVAP SMALL LEAK
P0442
0442
×
2
×
PURG VOLUME CONT/V
P0443
0443
—
2
×
PURG VOLUME CONT/V
P0444
0444
—
2
×
PURG VOLUME CONT/V
P0445
0445
—
2
×
VENT CONTROL VALVE
P0447
0447
—
2
×
VENT CONTROL VALVE
P0448
0448
—
2
×
EVAP SYS PRES SEN
P0451
0451
—
2
×
EVAP SYS PRES SEN
P0452
0452
—
2
×
EVAP SYS PRES SEN
P0453
0453
—
2
×
EVAP GROSS LEAK
P0455
0455
—
2
×
EVAP VERY SML LEAK
P0456
0456
×*
6
2
×
FUEL LEV SEN SLOSH
P0460
0460
—
2
×
FUEL LEVEL SENSOR
P0461
0461
—
2
×
FUEL LEVL SEN/CIRC
P0462
0462
—
2
×
FUEL LEVL SEN/CIRC
P0463
0463
—
2
×
VEH SPEED SEN/CIRC*
5
P0500
0500
—
2
×
ISC SYSTEM
P0506
0506
—
2
×
ISC SYSTEM
P0507
0507
—
2
×
PW ST P SEN/CIRC
P0550
0550
—
2
—
ECM BACK UP/CIRCUIT
P0603
0603
—
2
×
ECM
P0605
0605
—
1 or 2
× or —
ECM
P0607
0607
—
1 (CVT)
2 (M/T)
× (CVT)
— (M/T)
SENSOR POWER/CIRC
P0643
0643
—
1
×
PNP SW/CIRC
P0705
0705
—
2
×
ATF TEMP SEN/CIRC*
8
P0710
0710
—
1
×
Items
(CONSULT-III screen terms)
DTC*
1
SRT code
Trip
MIL
Reference page
CONSULT-III
GST*
2
ECM*
3
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