Citroen C5 parking aid technique won't work

A mileage about 84800km, configure 3.0L engine, automated transmission Citroen C5 sedan. Reflects the owner: car parking assist method parking distance detection perform doesn't get the job done, the distance measurement is not expected parking needs.
Pick-up just after car diagnostic tool the very first problem reflected through the user for confirmation. Commence the automobile, turn indicator is activated; parking place measurement switch is pressed.
Vehicle pace is under 20krn / h, driving by way of the parking room involving two vehicles uncovered the blend meter parking distance detection detection benefits (under typical situations wouldn't display effectively, then the blend meter will present the test success really should not be Parking, parking, parking 3 outcomes cautiously, determined by the size of your measured stopping distance), distance detection function for parking that does exist between the title.
First diagnostic PROXIA3 failed read operation of the parking help program of the vehicle control unit, the presence of any fault information is just not read inside the manage unit of your parking assist method. Then related parameter measurement operation, the primary parameters on the system will probably be compared value and the standard parameter while in the usual situations, no abnormality was found. Up coming, the model amount of the parking help procedure on the handle unit to get go through, as well as the most current version comparison, meet the demands, and also to exclude the chance of failure due to of software versions ineffective Division.
Control unit and its foot parking help procedure standing check out. Its very first CAN pin voltage measurements (stars the ignition switch to turn on and off the 2 states), the measurement consequence is 0V plus the battery voltage, respectively, to meet the prerequisites. Up coming, verify the state in the Intelligent Management F14 fuse box, clear away visual inspection if it's blown, the end result is ordinary. Examine SH fuse state, the outcome is normal. State from the engine compartment fuse box to the power provide line the MF8 fuse the manage unit, along with the result is regular. Checks the state with the management unit CAN H (the connector 18VNR5 feet) and CAN-L line (the connector 18VNR 14 feet), the ignition switch is opened and closed the measured voltage worth during the two circumstances, the measurement benefits together with the regular to the comparison voltage value, the end result is ordinary, indicating the CAN network cable isn't problematic, regardless of the fault with cable. Following months continued measure the state handle the unit Datie feet (connectors 18V NR10 1 foot), measured using a multimeter voltage worth (factors ignition switch is turned on and off two states), the measurement effects are 0V to meet the requirements Then, measuring the resistance value concerning the another this Datie feet and physique get the job done effectively Datie stage, the measurement result is under 1 ohm, and that this Datie level status is not really problematic. The replacement of a new parking assist program management unit assembly operation, discovered fault phenomenon there, nothing at all to indicate that the the fault generation parking assist system manage unit and its operating feet.
Parking distance detection sensor (electrical No. 7516,7517) and digiprog 3 its line standing verify. The connector the place the line of those two sensors 3: 7539,7524 C, 7523C, 7538,7524 F, 7523F-off verify, the consequence is not really problematic. Subsequent, measure a voltage value of the 6 lines (sub ignition switch to open and shut the two states), common worth comparison of your measurement effects and underneath regular circumstances, no abnormality was identified. The replacement of these sensors, then run system, the fault does not disappear, that generation of failure has practically nothing to do with parking distance detection sensor and circuit.
Next, the combination of instruments and their operating line status test. Blend meter handle unit with diagnostic fault study operation, and didn't get any fault data exists to blend meter functioning feet parallel leads with all the the focused the C5 model portfolio of instrument diagnostics harness bonding diagnosis junction box, then that has a multimeter measurement to the initial electrical voltage worth with the foot (the ignition switch to open and shut the 2 states), the measurement effects and under regular circumstances, the regular value comparison, and not problematic. Next, a voltage value measuring Datie feet (ignition switch to open and shut the two situations), as well as measurement final results are 0V, and measuring the resistance value concerning the the other this Datie level and body doing work thoroughly Datie stage, the measurement consequence is under 1 ohm effects that this Datie level is normal. F10 over the electrical power provide line to your instrument cluster, SH fuse (fuse) intelligent management box about the standing check out, will they eliminate the visual inspection if it really is blown, measured having a multimeter to get turned on and off, the outcomes display that the two a fuse will not be the issue. Continue its engine fuse box MFS fuse to the electrical power provide line standing test, the result is just not problematic. Finally, replace it by using a new instrument cluster assembly, then related operations, found fault phenomenon also exists. The over operation demonstrate the generation from the failure has practically nothing to do with all the blend of instruments and their functioning line.
Sterile mention no matter if intelligent management box parking distance detection function to normal settings to examine (if this characteristic is not typical activation, the parking aid handle unit can not manage sensor standard detection). Utilize the diagnostic PROXIA3 into intelligent handle box fault read through operations, with no any parking distance detection failure exists, the following user profile read through, parking distance detection perform setting status is ordinarily open 's. The over operation settings for this function is no trouble, the generation from the fault isn't attributable to parking distance detection perform is not a typical set.
Combination switch flip signal switch standing examine (should the parking distance detection management unit does not obtain the turn signal switch to your left, turn ideal and hit the subsequent, it doesn't control the corresponding side from the parking distance Discovery measured The sensor work). Turn signal switch toward the left and proper sides battle, uncovered normal to your left, moving towards the correct, left and appropriate turn signal on the instrument cluster display work thoroughly, the front of the vehicle, flip signal in 6 working properly. The above test results demonstrate the generation of failure has absolutely nothing to do using the state flip signal switch.
Dashboard parking distance detection perform switch and its operating line status check out (If this switch signal just isn't obtained parking distance detection management unit, it doesn't handle sensor). 1st that has a multimeter to measure the line wherever this switch off, the end result is not a problem. Up coming, measure the resistance the common resistance contrast measurement effects under normal conditions, absolutely nothing abnormal, proceed this switch removed, measuring its inner on-off located open circuit condition. Next, change a switch assembly, and then the operation on the parking distance detection function uncovered fault disappears.
Fault Summary VCM Metal Box IDS V82: Following meticulously dismantling the evaluation of fault that the generation of the fault is because of the parking distance detection function switch that exist in the mechanical damage brought about inner line break this case, when press this switch, Parking distance detection control unit can not acquire the signal of this switch is opened, this time parking distance the probing handle unit can not adequately control the the parking distance detection sensor send ultrasonic typically have to measure the room between the linked objects (parking position) distance detection.