4BA3 - P2691 (DDE)

4BA3 - P2691

Information saved in
DDE

Fault code
4BA3 - P2691

Fault text
Injector, cylinder 6, injection quantity compensation:

Fault description
Monitoring for missing or incorrect programming of injector
quantity calibration data for the injector. If the checksum for
the injector calibration data is incorrect or if the base
correction quantity exceeds the specified limits at a
minimum of one injector test point, or if a read error that
occurs when the EEPROM is being accessed makes it
impossible to read the calibration data, then the diagnostic
trouble code is logged.

Condition for fault identification
Test condition:
The error check runs during the DDE ECU's initialization
routine or when the diagnostic tester implements a change in
the calibration data.
Voltage condition:
The error check runs during the DDE ECU's initialization
routine or when the diagnostic tester implements a change in
the calibration data.

Condition for fault memory entry
No debouncing.None.

Action in service
1. Repeat the injector quantity calibration for the injector
and conduct a terminal status switch.
2. If the fault is still present in repeat testing:
Replace DDE control module.

Fault effect and breakdown warning
Proceed to the nearest BMW Service facility.

Driver information
Warning light:
KEINE

Service instruction
none