Monday, June 29, 2020

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

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

none

P1020

2A30 – P1020

Information saved in

DME

Fault code

2A30 – P1020

Fault text

Valvetronic, eccentric shaft sensor: power supply

Fault description

VVT-Supply Voltage Sensors Low Input (Bank 1)

Condition for fault identification

Test condition:

Monitoring of voltage supply to excentric shaft

Nominal value for voltage supply sensor = 5.0V

Terminal condition: Terminal 15 ON

Voltage condition:

Electrical system voltage terminal 87 >10.0 V

Condition for fault memory entry

Sensor power-supply voltage < 4.75V

Action in service

1. Check sensor power supply voltage with multimeter.

Supply voltage must lie between 4.75V and 5.25V.

2. If result is outside specified range: Check power-supply

wire to VVT sensor and check plug.

3. If contact is stretched or corroded: Replace plug on VVT

sensor

4. If wiring harness is defective: Replace wiring harness

between DME and VVT sensor.

Fault effect and breakdown warning

196

Driver information

Warning light:

ECE: No warning message. Engine reverts to VVT

emergency backup mode (throttled operation) US: OPEN