P1434

190404 - P1434

Information saved in
DME

Fault code
190404 - P1434

Fault text
DMTL, system fault: abort due to current fluctuations
during reference measurement

Fault description
The diagnostic function monitors the DMTL pump's current
draw during specified time periods.

Condition for fault identification
Test condition:
The fault is recognized when the current fluctuation exceeds
1 mA during a time window defined in the program map.
Potential problem source(s):
- DMTL (heater) defective
Terminal condition: none
Voltage condition:
- 10.95 V < electrical system voltage < 16 V
Temperature condition:
- Ambient temperature between 1.5 °C and 38 °C
Time condition:
- None
Other conditions:
- Tank fuel level between 1/4 and 3/4

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- If diagnostic fault codes for the DMTL are logged, then
clear the control module fault memory
- Perform DMTL operational test
- If the fault can be reproduced with the DMTL operational
test, then replace the DMTL

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- none

Driver information
Warning light:
- ECE emissions warning lamp: off
- US emissions warning lamp: on
- ECE electronic engine power reduction: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
- Operational testing on the DMTL (Diagnostic Module
Tank Leakage) can only be carried out provided that no
faults related to the DMTL have been logged. The
conditions for fault detection apply to the function test, but
not to diagnosis in the course of normal operation.