What do my fault codes mean!?

[Tobiasnugent]

01441 - i believe is the fuel level sensor, the car runs okay untill theres not much diesel left in the tank then the coil light comes on intermitently and some times takes a while to start. I do not have these issues when theres plenty of fuel in. Whats the usual fix for this ?

00546 and 00532 im unsure what these are ?

 

[jonnycraig]

00546 - Data Wiring faulty

00546 - Data Wiring faulty: Implausible Signal

Possible Symptoms

• Engine not starting / immediate Shutdown
• Malfunction Indicator Light (MIL) ON

Possible Causes

• Wiring and/or Connector(s) from/to Immobilizer Control Module (J362) faulty
  • No Signal or Implausible Signal on W-Line between Immobilizer Control Module (J362) and Engine Control Unit or Fuel Cut-Off Valve Control Unit
• Immobilizer Control Module (J362) incorrectly coded
• Immobilizer Control Module (J362) faulty

Possible Solutions

• Check Wiring and/or Connector(s) from/to Immobilizer Control Module (J362)
• Check Immobilizer Control Module (J362) Coding, Baud Rate Setting
• Check/Replace Immobilizer Control Module (J362)

Special Notes

• Under certain circumstances this code may be stored after improperly operating the Vehicle/Ignition. For example after the Engine has stopped the Ignition is switched on again immediately (Engine Control Module is still in the Start-Up Phase).
  • In such a case switch off the Ignition and wait at least 10 seconds before switching it back on. Then check and clear Fault Codes.

00532 - Supply Voltage B+

00532 - Supply Voltage B+: Signal too Low

Possible Causes

• Wiring/Connectors from/to Control Module faulty
• Power Supply (Battery/Generator) faulty

Possible Solutions

• Check/Repair Wiring/Connectors from/to Control Module
• Check Power Supply (Battery/Generator)

Special Notes

• When found in an individual control module, it's most likely a local source (e.g. wiring/connectors).
• When found in multiple control modules at the same time, it's most likely a common source (e.g. ground spot, battery, generator).
• Intermittent codes are often stored during low outside temperature when the battery capacity goes down and may be ignored.
• Common with 16946/P0562/001378 - System Voltage: Too Low stored in other control modules.

 

[aragorn]

Perhaps the level sensor in the tanks a bit worn and gets intermittant when fuel is low?

How low are you running it anyway?