Weird ECU Codes

[Menteith]

So this is what I'm getting:

1 long flash.

2 long flashes

3 short flashes

4 short flashes

5 short flashes


...any help? There isn't a code 3, 4, 5, 10 or 20.

...what do I do???

[S-Nation S13]

lol watch it again !!!

[Menteith]

lol watch it again !!!

It simply repeats.

[Menteith]

...anyone?

[S-Nation S13]

um..ok it should be a set of slow flashes then a set of fast flashes lol never came across single digit dtc lol

www.240edge.com (http://www.240edge.com) <<< here youll find dtc

[flip3d]

I bet one of those is knock sensor :P

[Menteith]

Knock sensor is 34

It's not throwing that code...

...can anyone shoot me a reasonable piece of information...or no?

[S-Nation S13]

what more do you want lol i just gave you the link to your fsm if you dont know how to use it than you dont need to be "trying to fix it" either that or you lazy to read it :( info i gave was reasonable

[AzBrewsky]

So this is what I'm getting:

1 long flash.

2 long flashes

3 short flashes

4 short flashes

5 short flashes


...any help? There isn't a code 3, 4, 5, 10 or 20.

...what do I do???

All codes are two digit codes.. Go back and count the codes again.. Count the number of long flashes (this will be the first digit to identify the code), then count the short flashes (this will be the second digit).

Example: LONG LONG LONG SHORT SHORT SHORT SHORT

The example above shows code 34 (three longs and four shorts).

Keep watching, if you have more than one code, then the series will differ to represent multiple codes. Write all the codes down. Once all the codes have been displayed, it will start over..

Now take those codes and refer to your FSM (Factory Service Manual), or post back and we can do the work for you..


AzBrewsky

[Sileighty_85]

All codes are two digit codes.. Go back and count the codes again.. Count the number of long flashes (this will be the first digit to identify the code), then count the short flashes (this will be the second digit).

Example: LONG LONG LONG SHORT SHORT SHORT SHORT

The example above shows code 34 (three longs and four shorts).

Keep watching, if you have more than one code, then the series will differ to represent multiple codes. Write all the codes down. Once all the codes have been displayed, it will start over..

Now take those codes and refer to your FSM (Factory Service Manual), or post back and we can do the work for you..


AzBrewsky

just to piggy back on this info
- this is general for 89-98 Nissan but most apply to the SR20 motor.
- to set car into diag. mode, with the key in the "ON" position, turn potentometer screw on ECU fully clockwise, then turn it fully counterclockwise. The LED on the ECU will begin to flash.
- first digit = LONG blink; second digit = SHORT blink (ex: 1... 1... 1... 1... then 1-1-1 equals 43 = TPS)

Error Codes Biatch
11 Crank Angle Sensor/Camshaft Position Sensor.
12 Air Flow Meter/Mass Air Flow Sensor.
13 Engine Coolant Temperature Sensor.
14 Vehicle Speed Sensor.
21 Ignition Signal.
22 Fuel Pump.
23 Idle Switch.
24 Throttle Valve Switch.
25 Idle Speed Control Valve.
28 Cooling Fan Circuit.
31 ECM.
32 EGR Function.
33 Heated Oxygen Sensor.
34 Knock Sensor.
35 Exhaust Gas Temperature Sensor.
36 EGR Control-Back Pressure Transducer.
37 Knock Sensor.
38 Right hand bank Closed Loop (B2).
41 Intake Air Temperature Sensor.
42 Fuel Temperature Sensor.
43 Throttle Position Sensor.
45 Injector Leak.
47 Crankshaft Position Sensor.
51 Injector Circuit.
53 Oxygen Sensor.
54 A/T Control.
55 No Malfunction.
63 No. 6 Cylinder Misfire.
64 No. 5 Cylinder Misfire.
65 No. 4 Cylinder Misfire.
66 No. 3 Cylinder Misfire.
67 No. 2 Cylinder Misfire.
68 No. 1 Cylinder Misfire.
71 Random Misfire.
72 TWC Function right hand bank.
73 TWC Function right hand bank.
76 Fuel Injection System Function right hand bank.
77 Rear Heated Oxygen Sensor Circuit.
82 Crankshaft Position Sensor.
84 A/T Diagnosis Communication Line.
85 VTC Solenoid Valve Circuit.
86 Fuel Injection System Function right hand bank.
87 Canister Control Solenoid Valve Circuit.
91 Front Heated Oxygen Sensor Heater Circuit right hand bank.
94 TCC Solenoid Valve.
95 Crankshaft Position Sensor.
98 Engine Coolant Temperature Sensor.
101 Front Heated Oxygen Sensor Heater Circuit right hand bank.
103 Park/Neutral Position Switch Circuit.
105 EGR and EGR Canister Control Solenoid Valve Circuit.
108 Canister Purge Control Valve Circuit.

[mrmephistopheles]

Nobody helped this guy...

The flashes are for different modes.

You need to be in mode 3 to pull codes, and then mode 4 resets the ECU. This is only for SOHC models.

Basically, wait till it flashes 3x, then turn the knob back to home.

[stinky_180]

sohc ecu for sures. if you want to pull codes, turn the diagnostic screw after it has flashed 3 times