Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 162
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P12A2
Fuel Rail
Pres‐
sure
Sensor
Inap‐
propri‐
ately
High
Fuel Sys‐
tem Pres‐
sure Sen‐
sor, High
Pressure
Side Ra‐
tionality
Check
High
• Deviation
lambda of con‐
troller included
adaptation >
30.00%
• And
• High pressure
controller out‐
put < -35 mg
• General:
• Engine speed
608 – 6,816 rpm
• Fuel mass set‐
point 5.00 –
1,389.00 mg/rev
• Time after
change to DFI not
equipped s
• Time after engine
start > 10.0 s
• Engine warm-up
not active
• Catalyst heating
not active
• Full load not ac‐
tive
• Catalyst purge
not active
• Lambda control
closed loop
• Evap purge func‐
tionality diagno‐
sis not active
• Fuel pressure
setpoint gradient
<= 34,777.60 kPa
• And
• Depending on
low dynamic con‐
ditions:
• Fuel mass set‐
point lower range
> 5.00 mg/rev
• For time >= 10.0 s
• Fuel mass set‐
point upper range
< 187.17 – 229.23
mg/rev
• Fuel mass set‐
point gradient
-1,389.00 –
1,389.00 mg/rev
• For time >= 5.0 s
• And
• Depending on
canister purge:
• Canister load <=
1.00 [-]
• 5.0 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Fuel
Pressure Sen‐
sor - G247- . Re‐
fer to
– Check the Fuel
Delivery Unit -
GX1- . Refer to
– Check the fuel
pressure. Refer
to appropriate
repair manual.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
321
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
• Or
• Evap purge valve
not active or
closed
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
322
Rep. Gr. ST - Generic Scan Tool
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P12A4
Fuel Rail
Pump
Control
Valve
Stuck
Closed
Fuel Sys‐
tem Pres‐
sure Sen‐
sor, High
Pressure
Side Out
Of Range
High
• Deviation be‐
tween fuel
pressure set‐
point and cur‐
rent fuel pres‐
sure <
-2999.90 kPa
• Deviation
lambda of con‐
troller included
adaption
-50.00 – 50.00
%
• Case 1:
• High pressure
controller out‐
put < -45 mg
• Case 2:
• Flow control
valve open
• Mass fuel flow
setpoint >
15.01 mg/rev
• General:
• Engine speed
608 – 6,816 rpm
• Fuel mass set‐
point 5.00 –
1,389.00 mg/rev
• Time after engine
start > 10.0 s
• Engine warm-up
not calibrated
• Catalyst heating
not calibrated
• Full load not cali‐
brated
• Catalyst purge
not calibrated
• Lambda control
not calibrated
• Evap purge func‐
tionality diagno‐
sis not calibrated
• Fuel pressure
setpoint gradient
<= 34,777.60 kPa
• And
• Depending on
low dynamic con‐
ditions:
• Fuel mass set‐
point lower range
> 5.00 mg/rev
• For time >= 10.0 s
• Fuel mass set‐
point upper range
< 187.17 – 229.23
mg/rev
• Fuel mass set‐
point gradient
-1,389.00 –
1,389.00 mg/rev
• For time >= 5.0 s
• And
• Depending on
canister purge:
• Canister load not
calibrated [-]
• Or
• Evap purge valve
not calibrated
• 5.0 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Fuel
Pressure Sen‐
sor - G247- . Re‐
fer to
– Check the Fuel
Delivery Unit -
GX1- . Refer to
– Check the fuel
pressure. Refer
to appropriate
repair manual.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
323
DTC /
Descrip‐
tion
Monitor
Strategy
Descrip‐
tion
Malfunction Crite‐
ria and Threshold
Value
Secondary Parame‐
ters with Enable
Conditions
Monitor‐
ing Time
Length
MIL Il‐
lum.
Component Diag‐
nostic Procedure
P13EA
Cold
Start Ig‐
nition
Timing
Per‐
for‐
mance
Off Idle
Ignition
Control
Ignition
Timing
Monitor
• Ratio between
ignition angle
efficiency inte‐
gral and time at
part load > 0.16
[-]
• Time @ part load
> 5.0 s
• Ignition angle set
point <= 0.94 [-]
• Engine part load
• Vehicle speed > 2
mph
• And
• Diff. air mass set
point vs. filtered
air mass set point
for load dynamic
detection <
99.999.0 mg/rev
• For time >= 0.0 s
• And
• Diff. engine
speed vs. filtered
engine speed for
engine speed dy‐
namic detection <
8,160 RPM
• For time >= 0.0 s
• 0.1 s
• Once /
DCY
• 2
DCY
– Check the En‐
gine Speed Sen‐
sor - G28- . Re‐
fer to
– Check the Igni‐
tion Coils with
Power Output
Stage . Refer to
– Check for any
Engine Speed
sensor or Igni‐
tion Coil faults
and diagnose
them first.
– If NO other co‐
des are set,
check the ECM.
Refer to appro‐
priate repair
manual.
P1545
Throttle
Actuator
"A" Con‐
trol Mo‐
tor Cir‐
cuit
Range/
Per‐
for‐
mance
Throttle
Actuator
Out Of
Range
• Control duty
cycle > 98.0 %
• Throttle position
not at min. value
• Throttle adapta‐
tion not active
• Throttle actuator
commanded on
• 5.0 s
• Con‐
tinu‐
ous
• 2
DCY
– Check the Throt‐
tle Valve Control
Module - GX3- .
Refer to
Throttle
Actuator
Rationali‐
ty Check
• Difference be‐
tween throttle
position set
point and throt‐
tle flap opening
angle for elec‐
tronic throttle
control > 2.998
– 24.982° TPS
• Throttle adapta‐
tion (@ initial start
or after detection
of throttle ex‐
change or check‐
sum error) not ac‐
tive
• Throttle actuator
commanded on
• Difference be‐
tween throttle po‐
sition set point
and throttle flap
opening angle <=
1.999; > -1.999°
TPS
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
324
Rep. Gr. ST - Generic Scan Tool
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