http://wiki.ross-tech.com/index.php?tit ... ntil=01539
17978/P1570/005488 - Engine Start Blocked by Immobilizer
Possible Symptoms
▪ Engine starting but stalling immediately
Possible Causes
▪ Key(s) not matched
▪ Instrument Cluster not matched
▪ Engine Control Unit (ECU) not matched
▪ Engine Control Unit (ECU) Power Supply faulty
Possible Solutions
▪ Check for Fault Codes in Immobilizer itself (part of Instrument Cluster in many cars, but separate Immobilizer Control Module in some)
▪ Check Immobilizer Measuring Values (usually in Instrument Cluster OR Immobilizer Control Module)
▪ Match Key(s)/Instrument Cluster/Engine Control Unit (ECU)
▪ Check Engine Control Unit (ECU) Power Supply (Relay)
Special Notes
▪ If no other immobilizer related fault codes are stored and the immobilizer related meas. blocks are fine except Engine Start not allowed, in rare occasions it helps to try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for about 15 seconds. Reconnect the battery. (Example)
17549/P1141/004417 - Load Calculation Cross Check: Implausible Value
Possible Causes
▪ Mass Air Flow Sensor (G70) OR Manifold Pressure Sensor (G71) faulty
▪ Vacuum Lines faulty
Possible Solutions
▪ Check Mass Air Flow Sensor (G70) OR Manifold Pressure Sensor (G71)
▪ Check Vacuum Lines
▪ Check Engine Operating Conditions => Meas. Blocks
Special Notes
▪ Uwe: I think this code is set when the airflow being measured (or otherwise calculated) by the ECU doesn't make sense given other operating parameters such as RPM and throttle opening, manifold pressure, etc.
01314 - Engine Control Module: No Communications
Possible Causes
▪ CAN-Databus Wiring/Connectors from/to Engine Control Module faulty
▪ Fault(s) stored in Engine Control Module
Possible Solutions
▪ Check CAN-Databus Wiring/Connectors from/to Engine Control Module
▪ Check Measuring Value Blocks (MVB)
Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status
01314 - Engine Control Module: Check DTC Memory
Possible Causes
▪ Fault(s) stored in Engine Control Module
Possible Solutions
▪ Check Engine Control Module for Fault Codes
Special Notes
▪ Engine Control Module stored a Code which influences other Control Modules Functionality.
To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.
00301 - ABS Return Flow Pump (V39)
Possible Symptoms
▪ Malfunction Indicator Light (MIL) ON
Possible Causes
▪ Fuse(s) faulty
▪ Wiring and/or Connector(s) from/to Return Flow Pump (V39) faulty
▪ Return Flow Pump (V39) faulty
Possible Solutions
▪ Check Fuse(s)
▪ Check Wiring and/or Connector(s) from/to Return Flow Pump (V39)
▪ Check/Replace Return Flow Pump (V39), might be Part of Hydraulic Unit (N55)
Special Notes
When found in VW Polo (9N) (or similar): Brake Electronics (Bosch 5.7) check MVB 006.3.
man har sparet 10000 i uærlig mekaniker regning. Det siger selvfølgelig ikk noget om grunden til at den er brændt!!!