goofy

I remember seeing a thread here that talked about being able to read the
codes when you got a "check engine soon" light. Can someone give me the link to that thread or information to be able to read the codes?

Thanks.

ValBoo

AAAHHH you mean this one:

http://www.nissanforums.com/showthread.php?t=7500

You're welcome !

(codes may vary...look in ESM or post your code, we'll look at it )

__________________
ValBoo.
Click Here For My Ride
(QR25DE w/ HS CAI & Header, UR pulley, Timing Advance, SS DP, Magnaflow cat, res & muffler, SS 2.5" exhaust, APEX'i S AFC II, JWT BSR, Tein-S suspension coils drop, A34 SE 18" Mags)

thetimster

How about trying this list. Forgot where I got it from but have it stored in my computer.... just in case I needed it! Or as the case is now, someone else does.

The fine print...
I have never tried this list myself so I cannot vouch for its veracity. But I don't have any reason to think it won't be accurate. Also take note, it says for 02-03 engines. I would not know if it will continue to apply to engines after 03.

Good luck!

============
Qr25de Ecu Code List

THIS IS FOR 02-03 QR25DE, 5SPEED, 6 SPEED, AUTO
HOW TO GET CODES FROM ECU AT BOTTOM OF POST.

REASON...................................CODE

A/T 1ST GR FNCTN....................................0731
A/T 2ND GR FNCTN...................................0732
A/T 3RD GR FNCTN...................................0733
A/T 4TH GR FNCTN...................................0734
A/T TCC S/V FNCTN..................................0744
APP SEN 1/CIRC +5.................................0227
APP SEN 1/CIRC +5.................................0228
APP SEN 2/CIRC +5.................................1227
APP SENSOR +5.......................................1228
ASCD BRAKE SW......................................1572
ASCD SW. ................................................15 64
ASCD VHL SPD SEN..................................1574
ATF TEMP SEN/CIRC.................................0710
BRAKE SW/CIRCUT...................................1805
CAN COMM CIRCUIT ................................1000
CAN COMM CIRCUIT.................................1001
CKP SEN/CIRCUIT.....................................0335
CLOSED LOOP-B1....................................1148
CMP SEN/CIRC-B1....................................0340
CTP LEARNING.........................................1 225
CTP LEARNING.........................................1 226
CYL 1 MISFIRE.........................................03 01
CYL 2 MISFIRE.........................................03 02
CYL 3 MISFIRE.........................................03 03
CYL 4 MISFIRE.........................................03 04
ECM............................................... ..........0605
ECM BACK UP CIRCUIT............................1065
ECT SEN/CIRCUIT.....................................0117
ECT SEN/CIRCUIT....................................0118
ECT SENSOR............................................ 0125
ENG OVER TEMP.......................................0217
ENG OVER TEMP.......................................1217
ENGINE SPEED SIG...................................0725
ETC ACTR.............................................. ...1121
ETC FUNTION CIRC..................................1122
ETC MOT............................................... ...1128
ETC MOT PWR...........................................1124
ETC MOT PWR...........................................1126
EVAP GROSS LEAK....................................0455
EVAP PURG FLOW/MON............................0441
EVAP SMALL LEAK....................................0442
EVAP SYS PRES SEN.................................0452
EVAP SYS PRES SEN.................................0453
EVAP VERY SML LEAK...............................0456
EVAP VERY SML LEAK...............................1456
FTT SEN/CIRCUIT.....................................0182
FTT SEN/CIRCUIT.....................................0183
FTT SENSOR............................................ .0181
FUEL LEVEL SEN SLOSH...........................0460
FUEL LEVEL SEN/CIRC.............................1464
FUEL LEVEL SENSOR................................0461
FEUL LEVEL SEN/CIRC.............................0462
FUEL LEVEL SEN/CIRC.............................0463
FUEL SYS-LEAN-B1...................................0171
FUEL SYS-RICH-B1...................................0172
H02S1(B1)......................................... ......0132
H02S1(B1)......................................... ......0133
H02S1(B1)......................................... ......0134
H02S1(B1)......................................... ......1143
H02S1(B1)......................................... ......1144
H02S1 HTR (B1).......................................0031
H02S1 HTR (B1).......................................0032
H02S2(B1)......................................... ......0138
H02S2(B1)......................................... ......0139
H02S2(B1)......................................... ......1146
H02S2(B1)......................................... ......1147
H02S2 HTR (B1).......................................0037
H02S2 HTR (B1).......................................0038
IAT SEN/CIRCUIT.....................................0112
IAT SEN/CIRCUIT.....................................0113
IAT SENSOR............................................ .0127
INT/V TIM CONT-B1..................................0011
INT/V TIM CONT-B1..................................1111
ISC SYSTEM............................................ .0506
ISC SYSTEM............................................ .0507
KNOCK SEN/CIRC-B1...............................0327
KNOCK SEN/CIRC-B1...............................0328
L/PRESS SOL/CIRC..................................0745
MAF SEN/CIRCUIT....................................0101
MAF SEN/CIRCUIT....................................0102
MAF SEN/CIRCUIT....................................0103
MAF SENSOR...........................................1 102
MIL/CIRC.............................................. ...0650
MULTI CYL MISFIRE..................................0300
NO DTC DETECTED/FURTHER TEST..........FLASHING
NO DTC (NO TROUBLE CODE)..................0000
O/R CLUTCH SOL/CIRC............................1760
P-N POS SW/CIRCUIT...............................1706
PNP SW/CIRC..........................................0705
PURG VOLUME CONT/V............................0444
PURG VOLUME CONT/V.............................0445
PURG VOLUME CONT/V.............................1444
SENSOR POWER/CIRC..............................1229
SFT SOL A/CIRC........................................0750
SFT SOL B/CIRC........................................0755
TCC SOLENOID/CIRC................................0740
THERMSTAT FNCTN...................................0128
TP SEN 1/CIRC.........................................0222
TP SEN 1/CIRC..........................................0223
TP SEN 2/CIRC.........................................1223
TP SEN 2/CIRC.........................................1224
TP SENSOR............................................ ...0221
TPV SEN/CIRC A/T....................................1705
TW CATALYST SYS-B1...............................0420
VC CUT/V BYPASS/V .................................1491
VC/V BYPASS/V.........................................1490
VEH SPD SEN/CIR AT................................0720
VEH SPEED SEN/CIRC..............................0500
VENT CONTROL VALVE..............................0447
VENT CONTROL VALVE..............................1446
VENT CONTROL VALVE..............................1448


This is how you reset the check engine light. No tools required!

In car ECM Diagnostics/ECM Reset procedure:

1) Sit in the driver's seat.
2) Turn the ignition key to the ON position and wait three seconds. (Do not start the car.)
3) Fully depress and release the accelerator pedal five times in less than five seconds.
4) Wait exactly seven seconds. Fully depress the accelerator pedal for ten seconds until the MIL light flashes.
5) Release the accelerator pedal and start counting flashes to obtain the four-digit trouble code.

Long flashes (0.6 seconds) indicate the first digit of the code; count the blinks one through nine and write down the first digit. (Ten blinks indicates a zero.)
The next three digits follow in turn in the same fashion except with faster blinks (0.3 second) and a 1.0-second pause between digits.

The ECM code repeats intself until you turn the ignition key to the OFF position, at which point the ECM resets itself to standard get-in-and-drive-the-car mode.
You can look up the trouble codes in the ESM/FSM; there's a bunch of them. In the ESM, refer to page EC-639.
Additionally, if you get four blinks of ten (0000), the ECM is indicating no malfunction.

You can clear the code (and the annoying MIL) by holding down the accelerator pedal for more than 10 seconds while in Diagnostic Test Mode II. When you release the pedal, the ECM erases the trouble code(s).

================
Edit...

Ah... its in the post that ValBoo directed you to anyway.

__________________
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goofy

Thanks!

I'll try that tonight and post the code.

dammitjim30

Hopefully, the person that wrote this still looks at this. I tried this and it work for my 2005 Nissan Altima 2.5SE, and I got a code of 1122, which according to this says ETC FUNTION CIRC. My question is, what the heck does that mean? Let me know please. Thanks!

ValBoo

Tim hasn't been on line for a few months ...
Let me try:


The code by itself refers to Elctric Throttle Control device (ie ETC)

The electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle control motor is operated by the ECM and it opens and closes the throttle valve. The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

FAIL-SAFE MODE definition:
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.

The source of the code could be :
- a blown fuse
- a malfunctionning electrical relay (ETC motor relay)
- a problem with the ETC motor itself
- foreign object blocking physical movement of the throttle valve (do visual inspection)

Mind you on a 2005 model year, you could simply ask Dealer to look at it under warranty?

hope this helps.

__________________
ValBoo.
Click Here For My Ride
(QR25DE w/ HS CAI & Header, UR pulley, Timing Advance, SS DP, Magnaflow cat, res & muffler, SS 2.5" exhaust, APEX'i S AFC II, JWT BSR, Tein-S suspension coils drop, A34 SE 18" Mags)

elyunque

I have a CHECK ENGINE LIGHT ON, but the mechanic dont know how to reset this alarm. Some tip?

Canadian Bear

I am going to assume that the mechanic has already varified that there isn't a problem, and I am also going to assume that there may be a fault in the electrical system, or something else. If the mechanic is confident that there are no problems, then he/she should be able to reset the computer. If this mechanic can't, then find one that can.

ValBoo

Ely,
I have found some previous info on this. Please see link in the second post.
This procedure should work

__________________
ValBoo.
Click Here For My Ride
(QR25DE w/ HS CAI & Header, UR pulley, Timing Advance, SS DP, Magnaflow cat, res & muffler, SS 2.5" exhaust, APEX'i S AFC II, JWT BSR, Tein-S suspension coils drop, A34 SE 18" Mags)

fats

used the accelorator pedal method to get fault code 0404. Any help on what this means as I cannot see it on above list?

chuckster57

P0404 is an EGR code. Most likely one of the following has happened:
1) open or short in 5volt reference circuit
2) open or short in ground circuit
3) open or short in PCM controlled voltage circuit
4) bad PCM ( less likely)

Using a scan tool command the EGR valve to open while watching the actual EGR position (it will probably be labeled "desired EGR" or something similar). The actual EGR position should be very close to the "desired" EGR position. If it is, then the problem is likely intermittent. It may have been a lodged piece of carbon that has since dislodged, or it could be a bad EGR valve winding that intermittently opens or shorts as the valve temperature changes.

If the EGR "desired" position is not close to the "actual" position, then unplug the EGR sensor. Check for a good 5 Volt reference voltage to the connector. If it doesn't show a reference voltage, repair an open or short in the 5 Volt reference circuit.

If there is a 5 volt reference voltage, activate the EGR with the scanner, monitor the EGR ground circuit with a DVOM (Digital Volt/Ohm meter). It should indicate a good ground. If it doesn't then repair the ground circuit.
If there is a good ground, then check the control circuit. It should indicate voltage that varies according to the percentage that the EGR is open. As it's open more, the voltage should increase accordingly. If it does, then replace the EGR valve.

If the voltage doesn't increase incrementally, then repair open or short in EGR control circuit.

__________________
Although I don't drive a Nissan, I do work on them.

DD is a 2005 Honda Accord and my Work horse is a 1994 Ford F350,CC,LB,DRW with a 7.3 IDI diesel engine.