Friday, May 22, 2020

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts

P1328

2E69 – P1328

Information saved in

DME

221

Fault code

2E69 – P1328

Fault text

Knock-sensor signal 2

Fault description

Knock Sensor 2 Circuit High Input (Bank 1)

Condition for fault identification

Test condition:

Knock sensor signal monitor

Vehicle road operation at >2800 1 rpm (current data status,

tends toward >2560 rpm) and air mass > 180 mg/unit. It is

not possible to clear fault by switching ignition terminals.

Compliance with the activation conditions and absence of

malfunction extending over several seconds are required

before fault code can be cleard.

Terminal condition: Terminal 15, engine on

Voltage condition:

Voltage in onboard electrical system > 10 V

Condition for fault memory entry

Yes, by event counter. If knock sensor signal remains below

threshold (differential knock signal > 4.8 V) for 1…3 sec.

fault code is stored

Action in service

1. Check knock sensor connection to verify that it is tight.

2. Check wire connecting knock sensor 1 and enginemanagement

control module

3. Check for connection between knock sensor 1 and ground

or positive

4. Replace knock sensor

Fault effect and breakdown warning

Driver information

Warning light:

No warning message. (No closed-loop knock control

available. Power loss, as engine reverts to operation in safe