Code 51? My 94 Probe is flashing a trouble code. It flashes five times, then there is a pause and it flashes once. After about 5 seconds it repeats. I assume this is 51. I can't find any info on what the code means. Most people say that they have the codes for a 95 but not a 94. Can anyone help. The engine will not idle for long before it dies. No problem restarting.

2003 Jeep Liberty- Reading Engine / Diagnostic Codes ...

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2003 Jeep Liberty- Reading Engine / Diagnostic Codes ..... error code will flash 2 times, brief pause, flash 1 time, pause, flash 5times, pause, ...

2005 Jeep Liberty possible cause of P0442 error. - YouTube

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While replacing a bad fuel pump I believe I found the cause of a P0442 Error code. I was able to repair the ...

Jeep Liberty Questions - Cylinder Misfire code - CarGurus

www.cargurus.com > Questions > Jeep > Liberty

CarGurusMay 27, 2009 - My jeep Liberty 2009 does the same the Dashboard showed a code of cylinder .... i have a jeep liberty 2006 with the # 5 cylinder misfire. i replaced the sparks... I have a 2005 Jeep Liberty 6 cylinder, engine light came on scaned the ... 2002 jeep liberty camshaft posistion sensor error code p0340 5 answers.

Check Engine Light/Misfire Due to Intake Valve Locks ...

repairpal.com > Problems > Jeep > Liberty

Recently got a second hand 2005 Jeep Liberty Sport. Everything worked fine ... #5intake valve seat dropped and held open the intake valve. 2008 Jeep Liberty.

OBD-II Trouble Code: P0305 Cylinder 5 Five Misfire Detected

www.obd-codes.com/p0305

Connect white (test lead) and black (ground lead) wires that are branched from harness approximately eight inches from ECM. After leads are grounded, the "Check Engine" light will flash the diagnostic trouble codes. The DTC's are indicated by the flashing CEL.
FLASH, FLASH, pause, FLASH, FLASH, FLASH = Code 23.
If only one diagnostic trouble code is stored, the DTC will repeat continuously until test leads are disconnected. If more than one diagnostic trouble code is stored, each DTC will repeat three times, starting with the lowest, then proceed to the next DTC. After all DTC's have been displayed, the pattern will repeat.I-MARK 84-85

Connect male and female test leads taped into wire harness near ECM. After leads are connected, the "Check Engine" lamp will flash the trouble codes. The DTC's are indicated by the flashing CEL.
FLASH, FLASH, pause, FLASH, FLASH, FLASH = Code 23.
If only one diagnostic trouble code is stored, the DTC will repeat continuously until test leads are disconnected. If more than one diagnostic trouble code is stored, each DTC will repeat three times, starting with the lowest, then proceed to the next DTC. After all DTC's have been displayed, the pattern will repeat.
86-87 Impulse located near the ECM connector, is used to actuate the Engine Control Module (ECM) trouble code memory within the module. Two terminals (A and C) of this connector are used to activate the diagnostic trouble code system in the ECM. With the ignition switch turned On, engine Off, connect a jumper wire between terminals A and C. The "Check Engine" lamp will begin by flashing a DTC 12. DTC 12 = flash, pause, flash, flash. There will be a longer pause and a code 12 will repeat two more times. This code indicates the self-diagnostic system is operating. The cycle will then repeat until the engine is started or the ignition is switched Off. In most cases, DTC's will be checked with the engine running since no DTC's other than DTC 12 or 51 will be present without the engine running. Remove jumper wire from ALDL connector before starting engine. Reconnect jumper wire after engine is running.

Throttle Body Fuel Injection

The ECM test connection is located under the center console.
A built-in, self diagnostic system will identify problems in the throttle body fuel injection system. When a problem is detected, the diagnostic system will illuminate the "Check Engine" light.
When the engine is started, the Check Engine light should turn off.. If the light remains lit, the self diagnostic has detected a problem. To determine where the problem exists, ground the "Test" terminal of the connector with the ignition On, engine Off and watch the check engine light. Each DTC will flash three times (lowest to highest).

READING CODES USING MIL (CHECK ENGINE) LAMP

Be advised that the MIL or CHECK ENGINE light can only perform a limited number of functions and it is a good idea to have the system checked with a scan tool to double check the circuit function.

1. Within a period of 5 seconds, cycle the ignition key ON - OFF - ON - OFF - ON .
2. Count the number of times the MIL (check engine lamp) on the instrument panel flashes on and off.

The number of flashes represents the trouble code. There is a short pause between the flashes representing the 1st and 2nd digits of the code. Longer pauses are used to separate individual 2-digit trouble codes.
An example of a flashed DTC is as follows:


Lamp flashes 4 times, pauses, then flashes 6 more times. This denotes a DTC number 46. Lamp flashes 5 times, pauses, then flashes 5 more times. This indicates a DTC number 55. DTC 55 will always be the last code to be displayed.

Fig. Fig. 2: Diagnostic trouble code chart (1 of 2)-1995-97 engines

Fig. Fig. 3: Diagnostic trouble code chart (2 of 2)-1995-97 2.0L engines

Turn key to on ( not start) then off, then on, then off, then on and leave on, and have a pen and paper ready to record flashes of "check engine light". It will flash then pause between second number of 2 digit code. Then a short pause and flash again, pause, then flash. For example: if it flashes 2 times, then pause, then flashes 2 more times, that would be code 22. If it flashes 3 times, pause, then flashes 5 more times, that would be code 35. As I said, there will be a short pause between 2 digits, as well as after number. Write them down as they come up and get back to us with those codes for advice. When you get code 55 ( 5 flashes, pause 5 more ) that means end of message. Those codes should point everyone in right direction of trouble spot.

Your car is NOT OBD II. that was mandated for 1996 and later. Your car requires a DRB II scan tool ( or equivalent)..Good news is that you can use the MIL ( check engine light) to retrieve the codes.

1. Cycle the ignition key to ON , OFF , ON , OFF , ON within 5 seconds.
   
2. Count the number of times the MIL (check engine light) on the instrument panel flashes on and off. The number of flashes represents the trouble code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses separate the individual two digit trouble code.

If it flashes 4 times and then pauses and flashes 5 times that is a 45. There will be a long pause between codes if there is more than 1 stored. After all the codes are flashed it will flash a 55. If you can get the code(s) and post(reply) I can look it up for you.

Power train control module controls the drivetrain. If you can get a code from the computer it would go a long way diagnosing wether its an engine malfunction or computer issue. To get the codes bring a pen & piece of paper out to the car, turn the key to the run position (not start but when all the dash lights come on) then off then run then off then run (three times in the on position, after you have turned the ke on then off 3 times on then leave the key in the on position and watch the check engine light. It will flash a code to you for example check engine light turns on then off 1 time with a long pause then the light flashes three times then another pause this would be the #13 code , most start with this code to tell you that it is checking codes. Just count the # of flashes (from the check engine light) & that is the first # of the code it will pause then flash again & that is the second # of the code. Flash 5 times pause then 5 more flashes is the # 55, & that is the last code you get to indicate all codes have been displayed, so key on then off then on then off then on & watch the check engine light count the flashes write down that # when it pauses then count the next number of flashes until the pause & that is your trouble cod they are 2 # codes & usually 13 is the first code flashed & the # 55 is the code that lets you know it is done, all the 2 digit codes in between are trouble codes & can be found in a chiltons or haynes service manual or search the web for chrysler trouble or computer codes.

The codes can be retrieved by turning your ignition switch on and off three time quickly and watch your service engine light. It will flash once pause then flash twice then it will begin to give any fault codes that have been stored. It will flash once or twice then pause then flash in concession again then pause and start another code if any. When you have retrieved all the codes available it will flash 5 times pause then flash 5 times which means it has finished. There are several sites on the net that will explain what each code stands for and which circuit needs your attention.

Hi,

Your ABS light is not directly related to your engine and would not cause your vehicle to shut down. Therefore, we need to have the Diagnostic Codes extracted from your vehicle's computer, before we can examine likely causes.

Assuming you cannot extract codes from the DTC connector, I can offer a different method which applies to some late model Nissans...

ACCELERATOR PEDAL METHOD (read carefully):

1 Switch the ignition ON (but DO NOT start the engine). 2 Wait 3 seconds. 3 Within the next 5 seconds, "fully depress - then fully release the accelerator pedal" 5 times (i.e. once per second). 4 Wait 7 seconds. 5 Fully depress the accelerator pedal...and hold it down for approximately 10 seconds. 6 The "ENGINE CHECK" Light should begin flashing. Fully release the accelerator pedal. 7 Read codes as described in the Code Format Description below. Code Format Description - the fault code will be in one of the following Code Formats below: • The code is made up of four groups of flashes each representing a digit. • A long flash indicates the 'thousands' digit. • 'Hundreds' 'Tens' and 'Ones' are groups of short flashes respectively. • A long pause separates each trouble code. • A shorter pause separates each group of flashes • Please note: A '0' digit is indicated by 10 flashes with this system.
Or... • Each code is made up of two series of flashes. • The long flashes indicate the 'hundreds' digit, however can be a value up to 13 (eg 13 flashes = Thirteen Hundred). • The short flashes indicate the 'ones' digit, however can a value up to 15. • A long pause separates each code sequence. Once you obtain the codes (or have someone do it for you) from your ENGINE CHECK LIGHT, post the codes here are someone can assist you further. PS: Your first priority is to get the vehicle mobile again. We can then deal with the ABS issue separately. Cheers,

http://img178.imageshack.us/img178/3331/obdikx3.jpg

The above link is to a diagram of your ALDL connector, all you need is a paper clip, straighten out the paper clip and insert one end into the diagnostic test pin and one in the system ground pin (terminals A & B).

Then put the key in the ignition and turn it to the on position but DO NOT start the engine. You will then see the check engine light flash. It will initially start by flashing once, then a pause and then flash twice and it will repeat this three times. That flash sequence indicates 12, which just means the system is operating. Its the flash sequences after that that will give you the code if any are stored.

For instance if it flashes twice, then pauses, then flashes four times, thats code 24. So any flash sequence you get after the initial 12 (flash once, pause, flash twice) you need write those down. Below is a list of diagnostic codes to tell you what the codes mean.

Code 12
1 flash, pause, 2 flashes
Diagnostic: This Code will flash whenever the diagnostic terminal is grounded with the ignition switch turned on and the engine is not running.

Code 13
1 flash, pause 3 flashes
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 30 seconds when the TPS signal was above 0.55 volts. The engine had been running for at least 40 seconds with an engine temperature above 110° F.

Code 14
1 flash, pause, 4 flashes
Coolant temperature sensor signal indicates a temperature of over 284° F for 4 seconds after the engine had been running for at least 10 secondsCoolant Sensor Circuit (high temperature) If the engine is experiencing overheating problems, have those fixed before continuing. Check all wiring and connectors associated with the coolant temperature sensor. Replace the Coolant temperature sensor.

Code 15
1 flash, pause, 5 flashes
Coolant Sensor Circuit (low temperature) Coolant temperature sensor signal indicates a temperature colder than -36° F for at least 4 seconds after the engine had been running for 2 seconds. See above, then check wiring connections at the ECM

Code 16
1 flash, pause, 6 flashes
Charging system voltage was either below 9 volts or above 17 volts for 10 seconds. System High Voltage If the voltage is above 17.1 volts for more than 2 seconds, the Service Engine Soon light will illuminate. Have the charging system checked.

Code 17
1 flash, pause, 7 flashes
PCM did not detect any spark reference pulses within 240 fuel control reference pulses (80 crank revolutions) while engine was running below 1200 RPM. Spark Reference Circuit.

Code 21
2 flashes, pause, 1 flash
Throttle Position Sensor, TPS voltage was above 0.8 volts for 5 seconds when engine was running and air flow was less than 15 gm/sec, or the TPS voltage was over 4.8 volts at any time.

Code 22
2 flashes, pause, 2 flashes
Throttle Position Sensor check TPS adjustment. Replace the TPS sensor. TPS voltage was under 0.2 volts for 4 seconds when the ignition was on. Check for a sticking, or mis-adjusted throttle position sensor.

Code 23
2 flashes, pause, 3 flashes
Inlet air temperature sensor signal showed an air temperature of -29° F for 4 seconds. Manifold Air Temperature. Check the MAT sensor, wiring, and connectors for a possible open circuit. replace the MAT sensor.

Code 24
2 flashes, pause, 4 flashes
Vehicle speed sensor signal showed less than 3 MPH for 2 seconds when engine speed was greater than 3000 RPM and transmission has not been in park or neutral for more than 4 seconds. Or vehicle speed goes from above 18 MPH to 0 in less than 2 seconds without applying brake. This code can only appear when the vehicle is in motion, if it appears when the car is not in motion, ignore it. Check ECM connections, any other problems should be diagnosed by a qualified mechanic.

Code 25
2 flashes, pause, 5 flashes
Inlet air temperature sensor signal showed an air temperature of over 218° F for 5 seconds when vehicle speed was greater than 35 MPH. Check the voltage between the MAT sensor and the ECM. voltage should be above 4 volts.

Code 26
2 flashes, pause, 6 flashes
Quad-Driver sense voltage shows a low voltage when battery voltage should be present, or if the sense voltage shows battery voltage when a low voltage should be present for at least 5 seconds when the engine was running. Have the car checked by a dealer.

Code 27
2 flashes, pause, 7 flashes
2nd gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 2nd or 4th gear switch was open when engine was first started. Gear switch Diagnosis Have the car checked by a dealer.

Code 28
2 flashes, pause, 8 flashes
3rd gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 3rd or 4th gear switch was open when engine was first started.

Code 29
2 flashes, pause, 9 flashes
4th gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 4th gear switch was open when engine was first started.

Code 31
3 flashes, pause, 1 flash
PRNDL indicates a gear other than park or neutral for 13 seconds for 3 consecutive startups when ignition was on, engine was off and vehicle speed was 0. Or the PRNDL status indicators (A, B, C, P) showed an incorrect combination of Lo and Hi for more than 10 seconds.
Check all connectors, and for a faulty switch.

Code 32
3 flashes, pause 2 flashes
EGR System Check vacuum hoses and connections for leaks and restrictions. Replace the EGR solenoid or valve.

Code 33
3 flashes, pause, 3 flashes
MAF Sensor Have the mass air flow sensor replaced.

Code 34
3 flashes, pause, 4 flashes
There was no MAF signal for over 4 seconds while engine was running. Check for loose or damaged air duct, misadjusted minimum idle speed and cacuum leaks. Inspect the MAF sensor and the electrical connections.

Code 38
3 flashes, pause, 8 flashes
The Torque Converter Clutch portion of the brake switch was open and caused the TCC to be inoperative, adjust OR replace switch.

Code 39
3 flashes, pause, 9 flashes
Torque Converter Clutch Check ECM connections, check for faulty Torque Conver Clutch solenoid.

Code 41
3 flashes, pause, 1 flash
Cam sensor signal was not received by PCM for the last 5 seconds while engine was running. Check for faulty connections, or a faulty cam sensor. Maybe also indicate a problem with the vehicle's timing chain.

Code 42
4 flashes, pause, 2 flashes
The Electronic Spark Timing (EST) signal did not change when the ECM applied bypass voltage to the ignition module. Check for faulty connections, or a faulty ignition module.

Code 43
4 flashes, pause, 3 flashes
Knock sensor signal was either above 3.5 volts or below 1.5 volts for at least 20 seconds. Check for a faulty knock sensor, or Mem-Cal.

Code 44
4 flashes, pause, 4 flashes
Oxygen sensor voltage was under 0.25 volts for up to 4 1/2 minutes of closed loop operation, lean exhaust. Check the ECM wiring connections. Check for vacuum leaks at the hoses and intake manifold gasket.

Code 45
4 flashes, pause, 5 flashes
Oxygen sensor voltage was over 0.75 volts for 2 minutes in closed loop operation with a throttle angle between 0.6 and 1.9 volts. Rich exhaust. Check the evaporative charcoal canister and its components for the presence of fuel.

Code 46
4 flashes, pause, 6 flashes
Power Steering pressure switch Check for faulty connections, or a faulty switch.

Code 48
4 flashes, pause 8 flashes
Misfire Diagnosis. Check the ignition and fuel systems.

Code 51
5 flashes, pause, 1 flash
Prom or Mem-Cal Make sure the MEM-Cal or prom is properly installed in the ECM. Replace Mem-Cal or prom.

Code 52
5 flashes, pause, 2 flashes
Cal-Pak Check the Cal-Pak to insure properation. replace the Cal-Pak.


Code 54
5 flashes, pause, 4 flashes
EGR #2 solenoid was out of range for 6 of 8 tests. 55 EGR #3 solenoid was out of range for 3 of 5 tests.

Code 55
5 flashes, pause, 5 flashes
ECM Check for faulty connections. Replace the ECM.

Code 56
5 flashes, pause, 6 flashes
Quad-driver voltage was incorrect for 5 seconds on the circuit connected to QDM "B".

Code 57
5 flashes, pause, 7 flashes
Boost control solenoid did not open bypass valve causing engine torque to be too high.

Code 63
6 flashes, pause, 3 flashes
EGR flow was incorrect. EGR solenoid did not work properly. Have vehicle serviced by a dealer.

Code 64
6 flashes, pause, 4 flashes
Same as Code 63 EGR flow was incorrect. EGR solenoid did not work properly.

Code 65
6 flashes, pause, 5 flashes
Same as Code 63.