Volkswagen Jetta cannot boot failure

Designs, car obd2 tools assemble the two-valve the BJG engine of a 2007 Volkswagen Jetta sedan.

Owners: get started vain motor vehicle just after automobile typical flame, turn around the ignition switch on the dashboard EPC lamp is not really lit, the decoder can not communication using the engine system.

Figure 1-22 is Digiprog 3 Odometer Programmer with Complete Application V4.82 a schematic of your engine handle unit powered Jetta sedan of 2007. In accordance on the schematic evaluation suspected J458 relay line failure. The J458 relay inner ideas and pin functions as proven in Figure 1-23.

Take out the driver side guard from your central power distribution box above to uncover J458 relays measure the relay to unplug the pin voltage, the actual measurement success present that only D foot 12V voltage, other the pin voltage are 0V. In accordance on the evaluation on the circuit diagram, the 3 Qiu feet need to possess a frequent voltage of 12V, this pin voltage fuse S51 more than likely blown. Immediately after checking the fuse S51 genuinely blown, examine the ignition coil fuse the management and engine management unit provide line and located no signs of the brief circuit, it can be estimated the last maintenance workers blown fuse short circuit check substitute the fuse, the dashboard EPC light still won't light, indicating the engine manage unit power provide isn't normal. The J458 relay pin voltage is measured again gets to be as follows: 11. 4V 85 feet, 86 feet 0V 30 feet 12 2V 87 feet 2.35V9 D foot twelve.18V. In accordance for the evaluation of the circuit diagram, the relay coil beneficial by way of the ignition switch management, damaging direct grounding speak to output of 87 feet voltage should really be 12V relay this motor vehicle 87 feet ahead of 2. 35V voltage fault is quite obvious, J458 relay contact failure, the substitute of the new relay, turn the ignition switch over the dashboard EPC lights lit, but the engine is still not the automobile. To communicate with all the decoder, several fault codes are mixture facets, simply because this automobile is usually a taxi, alteration of natural gasoline, dependant on previous experience that such models prevalent mixture fault code , irrelevant that vain motor vehicle failure, may be ignored, so the fault codes stored, clear fault codes, get started the car again and check the high-pressure fire, identified that high-pressure fire appropriately, then the the drive component check function in the decoder driven oil pump, you could hear the sound on the the J167 relay as well as the oil pump petrol tank, the essential pump get the job done typical. In this case, the go through fault codes, the normal show process. Just after 3 beginning the engine the automobile, it can be estimated the final servicing course of action, spark plug gasoline "drowned" forward on the auto following a few minutes, clear away from heat, then begin again, the car's engine is smooth, check, and found no other signs, recognized this automobile troubleshooting. Process frequently YANHUA Digiprog III exclude electronically managed engine touching the car or truck failed to verify the power of your engine control unit, faster approach is to check the dashboard engine fault light is lit within the dashboard of the automobile mentioned the 2007 VW Jetta EPC light in the engine management unit on the power-on LED, it can decide whether the engine control unit electrical power supply is ordinary. If your power provide is standard, to communicate with the decoder, to see no matter whether the fault strategies, then the fault tricks to a stage by phase troubleshooting. Motor vehicle failure will not be challenging, however the method of elimination plus the correct flow detection, to be able to swiftly locate the the J458 relay contacts bad get in touch with level of failure.