P10C3

1F4C01 - P10C3

Information saved in
DME

Fault code
1F4C01 - P10C3

Fault text
Relay, quantity control valve: Short circuit to B+

Fault description
The diagnostic facility monitors the wiring harness between
the DME and the flow-control valve's relay.

Condition for fault identification
Test condition:
The fault is recognized when a short circuit to positive is
present in the wiring harness between the DME and the
relay for the flow-control valve.
Potential problem source(s):
- Check wiring harness between DME and flow-control
valve relay
- Flow-control valve relay is defective
Terminal condition: Terminal 15
Voltage condition:
- Electrical system voltage > 10 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 0.2 sec.

Action in service
- Check wiring harness between DME and flow-control
valve relay
- Replace flow-control valve relay

Fault effect and breakdown warning
Breakdown notice:
- The engine reverts to its limp-home program, continued
vehicle operation is possible but drivability is restricted,
because power is reduced the driver should refrain from
passing maneuvers.
Possible apparent symptoms:
- Reduced 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