Mazda 6 Facelift 2005, Training Manual, Page: 81 / 274

Engine Diesel Engines
•
If the value measured by the DPF differential pressure sensor is below a certain limit, the
DPF is recognized as being damaged. Then the PCM stores a corresponding DTC,
illuminates the MIL and activates the limp home mode.
•
In this case, the DPF differential pressure sensor should be checked first. Call up the
Datalogger of the PCM and select the PID
EXHPRESS_DIF (Press). Then connect a
hand-operated pressure/vacuum pump to the upstream pressure line at the DPF, apply a
pressure of 30 kPa and monitor the
PID ( P arameter Id entification). If the PID indicates
30 kPa, replace the DPF. Otherwise check the upstream pressure line and the DPF
differential pressure sensor.
Service Training Mazda6 Facelift 01-67