2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 68
2A3D – P1049 (DME)
2A3D – P1049
Information saved in
DME
Fault code
2A3D – P1049
Fault text
Valvetronic, actuator motor: activation
Fault description
VVT-Control Circuit Engine Cables Short Circuit (Bank 1)
Condition for fault identification
Test condition:
Short circuit between motor wires
Terminal condition: Terminal 15 ON
Voltage condition:
Battery voltage > 6.99 V
Condition for fault memory entry
Fault set immediate without debounce
Action in service
1. Check wiring to VVT motor
2. Ignition off, allow control module to assume dormant
state as indicated, restart
3. If Items 1 and 2 are not OK, it will be necessary to inspect
the control module’s electronic circuitry
Fault effect and breakdown warning
Driver information
Warning light:
Emergency default mode 2
Service instruction
none
2A3E
2A3E – P1078
Information saved in
DME
Fault code
2A3E – P1078
Fault text
Valvetronic, actuator motor: overload
Fault description
VVT-Overload Protection Control Motor Current High
Input (Bank 1)
Condition for fault identification
Test condition:
Monitoring of servo motor overload;
The VVT servo motor temperature is calculated in the DME
using a model. The first stage occurs when it heats beyond a
warning threshold (fault #10819, fault class 2). This is 190
掳C (VVT motor temperature) and causes the VVT to revert
to operation in its emergency mode. If the VVT motor were
to overheat even further, the VVT system would be
completely deactivated upon reaching the deactivation
