AIT sensor failed reads (4996mV)
Posted: Sun Oct 25, 2020 3:43 am
Hi Guys,
I'm relatively new to this game.
My problem is that the AIT sensor part of my TMAP sensor (Bosch 0261 230 053) is reported as failed.
The voltage reading is steady at 4995 mV
MAP reads ok ish... (90kPa with engine not runing)
I used the DTA default cal for it (Bosch 0230 260 037 105kPa sensor) as it is the closest I could find... and they are both 105kPa sensors...
The resistance of the sensor (pin 1 to pin 2) is about 3.8kOhm at 15°C.
However even with the sensor disconnected the S80 reads 4995mV for AIT
So I checked the cables for continuity between 5V supply (ECU pin 9) and pin 7 and there is none (sensor disconnected)
I had the ECU with Alex a week ago and he checked it and it is all OK
Am I missing something?
I'm relatively new to this game.
My problem is that the AIT sensor part of my TMAP sensor (Bosch 0261 230 053) is reported as failed.
The voltage reading is steady at 4995 mV
MAP reads ok ish... (90kPa with engine not runing)
I used the DTA default cal for it (Bosch 0230 260 037 105kPa sensor) as it is the closest I could find... and they are both 105kPa sensors...
The resistance of the sensor (pin 1 to pin 2) is about 3.8kOhm at 15°C.
However even with the sensor disconnected the S80 reads 4995mV for AIT
So I checked the cables for continuity between 5V supply (ECU pin 9) and pin 7 and there is none (sensor disconnected)
I had the ECU with Alex a week ago and he checked it and it is all OK
Am I missing something?