A mileage of about 42,000 km, configure the electronically controlled engine and automatic transmission, the 2009 Ford Focus sedan. As a consequence of an accident in a automobile repair shop to fix the outcomes of the engine can not be started. Right after getting the vehicle: verify the condition, body lines messy, this really is the result just after many technicians overhaul. Confirm the fault symptoms, starter doesn't respond, the dashboard is no mileage data show that the oil warning light will not shine, PATS warning lights flashing, the LCD display shows "good automatic transmission failure" message.

Use execute self-diagnosis, unable to communicate using the PCM. Analyze the motives, there are numerous possibilities: PCM harm, PCM undesirable energy digiprog iii provide or ground lines, the dashboard has a dilemma, ABS technique failure, TCM damage, high-speed network communications. Verify the PCM, external no impact marks, no water phenomenon. And soon after turning the ignition switch, throttle motor has action sound so unlikely PCM broken. For the instrument panel, ABS system, TCM and other concerns, the reasons are likely the same using the PCM, so decided to concentrate on examination of high-speed networks.

Disconnect the battery cables, remove the plug on the high-speed network module, use a multimeter to detect CAN , CAN-line connections, have discovered CAN circuit phenomenon. Combining circuit diagram 1 investigation, might be reduced to breaking point BJB C90 plug on red onto the gray wire CAN C111 connector. Inside the 15th C90 plug terminal plus the fuse box to the path of the CAN C111 plug wires connected to maxidas ds708 a wire, turn the ignition switch, instrument panel features a mileage information, PATS warning lights are no longer flashing. Move together, the smooth functioning on the engine, the issue is triggered by CAN wire circuit. Fold down below cover with the fuse box, cautiously check the high-speed network connection cable C90 plug identified CAN wire inside the bottom on the left headlight BJB EHPAS module interrupt the road. Take a good break, commissioning, fault symptoms completely disappeared.

CAN wire breakage is brought on by the influence of your accident, just outside wrapped in plastic sheath harness isn't broken, isn't simple to obtain. High-speed network communication interruption will result in several joint failure, if only in the failure to find the problem representation, it's going to turn into really complex, and no clue tips, no pre personnel to troubleshoot the lead to right here. As a result, the issue of communication is interrupted, 1st verify up from ck-100 key programmer the communication network, combined with circuit diagrams, evaluation in the probably faulty elements and parts, then paragraph by paragraph investigation, to seek out the trigger. Those joint failure symptoms will disappear together with the communication is restored.

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