DTC P1648 Audi
Data Bus Powertrain Malfunction
Data Bus Powertrain Malfunction
Description
Ignition on, the ECM detected a data bus malfunction (software). To achieve optimal anti-theft protection for the vehicle, an anti-theft immobilizer is installed. The anti-theft immobilizer is a system for enabling and locking the Engine Control Module (ECM). So that this system cannot be circumvented, it is necessary to perform adaptation of the anti-theft immobilizer using the Vehicle Diagnostic and Information System VAS 5052 in the On Board Diagnostic (OBD) function. The great availability of equipment options makes it necessary to adapt the Engine Control Module (ECM) to the vehicle (e. g. throttle valve control module or cruise control system). This writing function is not possible with the generic scan tool.
Cause and Solution
Ground between engine and chassis may be broken
Throttle position sensor may have failed
Accelerator Pedal Position Sensor 2 has failed
Throttle position sensor wiring may have shorted
Faulty voltage supply
Video Guide
Diagnostic Info
- DTC Code: P1648
- Brand: Audi