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TT RS 2012 ➤
Generic Scan Tool - Edition 07.2011
DTC
Error Mes‐
sage
P12A Fuel Rail
2
Pressure
Sensor In‐
appropri‐
ately High
P12A Fuel Rail
4
Pump Con‐
trol Valve
Stuck
Closed
P150 Comparing
A
engine off
time from
instrument
cluster con‐
trol unit with
engine after
run time
Diagnostic Pro‐ Malfunction Crite‐ Secondary Parame‐ Monitor‐ Frequency of
cedure
ria and Threshold ters with Enable
ing Time checks, MIL
Value
Conditions
Length
Illum
– Check the
Fuel Pres‐
sure Sensor G247- . Re‐
fer to Check
the Fuel
Pressure
Sensor G247- . Re‐
fer to
⇒ “3.5.5 Fuel
Pressure
Sensor,
Checking”,
page 119 ..
– Check the
Fuel Pres‐
sure Sensor G247- . Re‐
fer to
⇒ “3.5.5 Fuel
Pressure
Sensor,
Checking”,
page 119 .
Check the ECM
battery voltage
inputs. The
ECM must have
voltage input
with key off. Re‐
fer to wiring dia‐
grams for pin lo‐
cations. If key off
voltage supply is
present at the
ECM, replace
the ECM. Refer
to the Repair
Manual
•
pressure con‐
trol activity,
<0.14 mPa
•
engine speed
600...900 RPM
•
AND
• evap purge adap‐
tation < 20
•
fuel trim activi‐
ty, >1.5
•
lambda control
closed loop
•
engine load >
10...30%
•
5 Sec •
Continu‐
ous
•
2 DCY
•
Continu‐
ous
•
2 DCY
•
once
•
2 DCY
• fuel cut off not ac‐
tive
•
pressure con‐
trol activity,
<6.00 mPa
•
AND
•
fuel trim activi‐
ty, >0.9
\0...1.15
•
difference be‐ •
tween engineoff-time and
ECM after run•
time < 12
•
•
lambda control
closed loop
5 Sec
• fuel cut off not ac‐
tive
Key ON during
ECM after run
timer - active
0 Sec.
CAN active
difference be‐
tween engineoff-time and
ECM after runtime > 12 Sec
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with respect to the correctness of information in this document. Copyright by AUDI AG.
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Rep. Gr.ST - Generic Scan Tool