The Santana period Superman cannot to communicate using the decoder

Santana period Superman a mileage of a hundred and twenty,000 km sedan. The vehicle engine airbag reset toolcontrol unit is unable to communicate with the decoder, the anti-theft program and Abs are not able to talk to the decoder.

Fault analysis: the vehicle as the engine exhaust black smoke to repair, though the fault code read through with the car critical programmer decoder, identified it unachievable to communicate along with the engine management device, then the decoder with Abdominal muscles and anti-theft systems for conversation, found that both of those can't connect. And Ab muscles fault mild stays lit.

Voltage measuring the fault analysis seat each foot: 16 toes (beneficial power source) 12V, four ft (ability detrimental) 0V, 7 toes (knowledge interaction traces) 57V. With the measurement benefits place of look at,ECU programmer the very low voltage of seven toes, underneath typical circumstances ought to about 12V, find the original car or truck circuit diagram evaluation identified a few command device analysis, Block 7 feet interlinked. Are J104 (Ab muscles command device), J234 (airbag manage unit) and J362 (anti-theft handle device), the 3 command units info conversation line linked to with each other, and afterwards connected to the No. 7 pin of the fault analysis socket, is suspected the injury towards the manage device in one of your a few control models. Disassemble the motive force aspect in the taxi guard, discover the anti-theft control device.

Measurement details from the higher than stage of look at, there's no discovery, interaction line voltage continues to be very low, unplug the anti-theft regulate device, measuring the voltage in the details line is still 9. 57V and decoder or unable to talk to Abs Description can't connect failure just isn't induced due into the immobilizer handle unit.

When the Abs manage device can be eliminated, after which you can the decoder conversation examination, the anti-theft unit can communicate with the engine regulate device can talk, the above detection Description internal troubles of the Stomach muscles handle device. auto diagnostic toolsTime you measure the voltage to the details line to become twelve.3V, continues to be restored to normal.