P0448

P0448

Diagnosis information - DME

DMTL - Tank Leakage Diagnostics Module, valve driver

Diagnostic conditions
- Power supply voltage 10 V ... 16 V
- Engine running

Possible fault causes
- Open circuit, short circuit to B+ or short circuit to ground of control line for DMTL switch-over valve
- Open circuit in the power supply to the DMTL
- DMTL - Tank Leakage Diagnostics Module - faulty
- DME control module faulty