P0642 Suzuki Sensor Voltage Circuit A Low Voltage

P0642 Suzuki Sensor Voltage Circuit A Low Voltage

Possible causes
– Faulty Engine Control Module (ECM)
– ECM harness is open or shorted
– ECM circuit poor electrical connection
– Shorted sensor on 5 volt circuit
Tech description
There is a factory service bulletin for the P0642 Suzuki code for the following models:

2005-2007 Audi A3
2005-2007 Audi A4
2007 Audi A4 Cabriolet
2008 Audi TT
Audi Factory Service Bulletin OBDII Code P0642 Suzuki

What about the obd code?
The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is lower than expected
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Suzuki Vehicle:Suzuki XL7,Suzuki Kizashi,Suzuki Escudo,Suzuki SX4,Suzuki Wagon R,Suzuki Alto,Suzuki Cervo,Suzuki Cappuccino,Suzuki Fronte,Suzuki Grand Vitara,Suzuki Ignis,
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