Peugeot Diagnostic Codes
Jens Loco
Is there a way to access the error codes without a fault code reader on the 3 row management? The error light lit up a couple of times but didn't seem to affect the car, also anyone know if the temperature control in a 405 is cable operated?
Is this the same procedure for the Motronic on an XU9JAZ engine (205 1.9 cat, 122hp)? I have no idea if it is 2 or 3 row ECU. The 'K' light keeps coming on in my car so I would like to try and diagnose it. Having said that it does not seem to affect the car or engine at all when it is on. There are four loose connectors hanging out of the main loom near the master cylinder, I assume one of them is for this switched earth wire to hook into?
It's really easy job , though i found flash codes on a 1.3 Motronic a bit fast so only counting might be a little bit tricky , but they're two dig. codes so it's easy to count them .. anyway , you'll need to build a "tool" and for this will need : some wire , one led diode lamp (red , yellow , green which ever color you fancy .. i prefer red one as it's easier to spot the flashes when testing during the daylight) , one std. resistor , tiny square piece of std. PCB board , one std. switch , one thin crimp terminal and two croc clips (not really necessary , but it's nicer with croc clips )..
First solder the led diode lamp and resistor onto the PCB board , but check first with multimeter which side of diode lamp is positive and which is negative (cos it'll work just connected one way around) , as you'll need to solder one leg of the resistor on the positive side of the diode and then the other leg of the resistor on the piece of wire which will go directly onto the battery positive .. if you have croc clips add one on the end of this piece of wire which , during the testing procedure , will be connected on the battery positive terminal as an main positive supply ..
Then , solder another piece of wire on the diode lamp negative side and connect the wire end onto the switch , further on , peel off insulation in the middle of this wire and solder another piece of wire (in the T shape) and add thin flat crimp conector on the end (this one you'll connect onto the diagnostic socket .. it's just one terminal so you'll need one connector) .. and the last bit , connect an piece of wire on the other side of the switch and stretch it further as long as you wish and add croc clip on the end (this will be for connecting on the chassis earth) .. and that's it .. final product should look like this :
Diagnostic socket : Take a look down around the fuel filter area , you'll see 2pin green connector (it's the same one as injector connector just this one is green ..) , now (make sure that the ignition key is in OFF position) first pin on this connector is blank so connect the T bit of the diagnostic tool on the pin No.2 , power supply end of the tool on the battery positive and earth side on the chassis earth and arrange switch contact on open position .
With all this connected , switch the ignition ON , close the tool switch contact for say 2-3sec and switch it on open afterwards , led diode will flash 12 code (one long and two short flashes) this is the beginning of the testing i.e. access code , again close/open the switch counting 2-3sec. in between closing/opening , then the first faulty code will appear ..
More info regarding counting flashes , flash codes for particular car/system and other stuff regarding diagnostic can be found in this PDF book (it's a little bit tricky to explain all this , so please read trough from the book instead ..) :
I just connected the flying lead off the loom to the orange spade that dangles down under the 205 dash. This is hooked up to the choke light so when there's a fault the choke light comes on. No messing around with LED's.
2 Pugs, it sounds like your light is already hooked up. On the loom there is probably a 2 pin socket (like the injector plug) hanging somewhere, trace one of the 2 wires from that socket to the same lead as the k-light and that is the one you need to ground for 5 seconds to start the test procedure.
Dunno actually what you on about but the dash K-light on a 205 just lits on when theres a fault present and it can't be used for diagnostic purpose for performing FCR test as it does not produce flash signal like on some of other cars on which i've done self diagnosis without proper FCR reader ...
Flashing Check Engine Light: If your check engine light blinks, it could indicate a severe problem, potentially a misfiring engine. The best course of action is to pull over immediately and contact roadside assistance or towing to bring the vehicle to an ASE Certified mechanic, repair shop, or car dealership.
The onboard diagnostics system allows drivers and technicians to assess vehicle health and safety quickly and effectively through an OBD-2 scanner. Scan tools are available at most auto parts stores, and some locations will perform a complimentary scan. Once accessed, the OBD-2 (or OBD-II) scanner can give information about the check engine light and the vehicle identification number (VIN), calibration identification number, and other crucial vehicle information.
If you do not have access to an automotive diagnostic scanner, there are alternative ways to read codes without a scanner. Although these are not ideal, using your odometer or ignition key can effectively retrieve diagnostic trouble codes to determine the cause of your check engine light.
The ignition key is one of the more commonly used ways of diagnosing check engine light trouble codes without an OBD-2 scanner. However, while this method is easy, it takes careful observation to determine the DTC. If your vehicle is OBD-2 capable, the trouble code should appear within the odometer display, as in the methods above.
If any of the methods above were unsuccessful, your vehicle might not support the OBD-2 diagnostic system. However, there are ways to access the OBD-1 codes using only a paperclip or a jumper wire and following these steps:
Although there are ways to check engine light codes without a code scanner, the easiest and most effective way is to use an OBD-2 scanner. If one is unavailable, auto part stores sometimes offer a complimentary scan to help you identify the cause of your check engine light.
However, even if you have the engine scanner codes, the trouble codes are sometimes generic and cannot be used for a complete and accurate diagnosis. Taking your vehicle to an ASE Certified mechanic, repair shop, or car dealership is an effective way to identify the cause of the check engine light code and have it repaired to get you back on the road.
While many drivers may be tempted to ignore the check engine light or procrastinate on taking a trip to the shop, especially if the vehicle seems to be driving smoothly, in reality, it could indicate a severe problem that should be addressed immediately. Operating your vehicle with even minor problems could lead to more serious issues, like a blown catalytic converter, irreversible damage to oxygen sensors (O2 sensors), or other expensive engine repairs. Ignoring a problem can result in potentially thousands of dollars worth of expensive engine repairs. An extended warranty or auto protection plan can help protect you from unexpected costly engine repairs.
In addition, Endurance coverage plans offer more than just financial protection against mechanical failures. Every plan comes with additional benefits, including 24/7 roadside assistance and towing, a choice of repair locations, a risk-free 30-day money-back guarantee, trip interruption coverage, substitute transportation, and more. Endurance customers can also access even more savings by activating their Endurance Elite Benefits, which include one year of FREE benefits, like tire repairs or replacements, key fob replacements, collision discounts, total loss protection, and more.
After more than 16 years as a technician and service advisor, Adam Karner transitioned to the auto protection industry in 2009. As a Product Manager for Endurance Dealer Services, he brings valuable hands-on experience. Read more about Adam.
OBD stands for 'On-Board Diagnostics'. The vehicle's system monitors and reports on the performance of components of the vehicle's systems. The reports are designed to alert the driver or technician to any potential problems or malfunctions.
A car diagnostic tool communicates with a vehicle's on-board computer system to retrieve diagnostic information regarding the vehicle's health and performance. These tools can read fault codes, monitor sensor data, and perform various tests to help identify issues with the engine, transmission, emissions system, and other components, enabling the technician to find and fix the fault.
This is an exclusive Snap-on car diagnostic tool and OBD2 scanner feature that saves you time. Fast-Track ID filters diagnostic information only relevant to the specific vehicle and fault code you are working on, enabling you to repair the fault quickly and confidently. To see how it works, take a look here
If you're uncertain about which Snap-on OBD2 scanner suits you best, why not take a look at Tool Matcher. Simply input your daily car diagnostic tasks, and we'll recommend the scan tool that aligns perfectly with your requirements.
Since the 1970s, almost every car has been equipped with onboard electronics, including the engine control unit (ECU) and various diagnostic systems that comply with the On-Board Diagnostics (OBD) standards.
Disconnecting your car battery for regular servicing, such as swapping the battery for a new one or placing a car in long-term storage, should not cause permanent damage to your ECU as long as you follow the correct procedure.
Disconnecting the battery cable for a short period will not fully reset your ECU because residual power remains in the circuits. If you want to perform a full reset, wait at least 15 minutes before reconnecting the battery to ensure all residual power has been drained.
A full reset reverts your ECU to its factory settings and likely causes it to forget its learned ideal shift points and air-fuel mixing ratios. When driving shortly after a reset, you may experience rougher acceleration and shifting than usual.
c80f0f1006