64 99... Reading out flashcode
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Test precondition:
Check function of independent park heater,
refer to 64 12 005 CHECKING FUNCTION OF INDEPENDENT HEATING (THERMO TOP S)
Instruction:
Connect inspection lamp to glow plug above peripherals box. See appropriate SYSTEM WIRING DIAGRAM. Switch on independent heating via MID or on-board monitor, switch off after 3 minutes running time and, once after-running time has elapsed, count the number of flash pulses.
NOTE:
If there is a fault, park heating switches to fault overrun automatically after 2 minutes.
Flashcode evaluation
FLASHCODE EVALUATION
| Flash pulses | Fault cause and corrective measures |
|---|---|
| 1 | Flame detector has short or break, refer to FAULT 02 FLAME DETECTOR |
| 2 | Overvoltage or undervoltage at heater, charge battery. |
| 3 | Temperature sensor has short-circuit, refer to FAULT 05 TEMPERATURE SENSOR |
| 4 | Flame detector defective (does not detect flame), refer to FAULT 02 FLAME DETECTOR |
| 5 | Flame detector defective (always detects flame), refer to FAULT 02 FLAME DETECTOR |
| none | Combustion air blower or, refer to FAULT 01 COMBUSTION AIR BLOWER glow plug or, refer to FAULT 03 GLOW PLUG metering pump defective. refer to FAULT 06 PARK HEATING METERING PUMP |