Fuel Sys. - Low Pressure Fuel Supply Sensor Diagnostic Error
SI B13 06 12
Fuel Systems
October 2012
Technical Service
SUBJECT
N63 and N74 Engine: ISTA/D 2.33 Diagnostic Error in the Low-pressure Fuel Supply Sensor Value
MODEL
E70
E71
E72
F01
F02
F04
F07
F10
F12
2010 BMW 750Li xDrive AWD (F02) V8-4.4L Turbo (N63) Page 13
F13
INFORMATION
When diagnosing the low-pressure fuel supply sensor with one of the following test plans and ISTA/D 2.33, an error will be encountered in the
display. The value of the low-pressure fuel supply sensor will read 0 bar at all times.
^ B1214_DI6KNDR
^ D18KHDR
^ AT1214_DIKNDR
^ AT1214_DIKHDR
Do not replace the low-pressure fuel supply sensor.
The operating pressure of the low-pressure fuel supply sensor can found in "DME Diagnostic Query" using the following procedure:
1. Exit the test plan and return to the control unit tree.
2. Select "DME" in the control unit tree.
3. Select " Call Up ECU Functions."
4. Select "Diagnostic Query."
5. Select "Fuel Pressure (Low Pressure)."
6. Select "Query Status."
The engine must be running to verify operation of the pressure sensor.
The software error will be corrected in ISTA/D 2.34, scheduled for release in December 2012.
