102501 - P0103 (DME)

102501 - P0103

Information saved in
DME

Fault code
102501 - P0103

Fault text
Mass air flow sensor: Short to B+ or open circuit

Fault description
The diagnostic function monitors whether the digital air-
mass signal for Bank 1 switches between LOW and HIGH.

Condition for fault identification
Test condition:
The fault is recognized when the digital air mass signal is
continuously at high level.
Potential problem source(s):
- Wiring harness defective
Terminal condition: none
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- Engine on

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 0.8 sec.

Action in service
- Visual examination of plug-in contacts (at component and
DME ends) Measure sensor wire, power supply and ground
- Replace sensor

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- Slight reduction in power

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

Service instruction
- none