I use Torque Pro with a low cost ELM327 adapter. There are no dash board lights but I have a code B2290 and I’m trying to figure if the code is real or was generated due to a weak battery I replaced a week ago. Below is the report I get from Torque Pro. The B2290 is reported under “Other discovered fault codes” with the designation of “Null.” On the display there was a note saying “one gray code reported that might only be cleared by N drive cycles.” Just a reminder there are no dashboard lights since I replaced the battery.
If there were a real problem like a bad sensor, wouldn’t the OCS trigger the airbag light?
What does “gray code” and “null” refer to?
Here is the report from Torque Pro:
Fault log report generated by Torque for Android
Vehicle Manufacturer: Ford
Vehicle Calibration ID: Not present
Current Fault Log
——————
ECU reports no current faults
Pending Fault Log
——————
ECU reports no pending faults
Historic Fault Log
——————
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
—————————————————-
B2290: null
End of report.