NHTSA ID Number: 10205699
Manufacturer Communication Number: Quick Reference
TSB/Document Date: 2021-12-27
Summary
Quick reference specification book.
high
and
• Crankshaft signals 8
P0346
Camshaft Positon Sensor
Circuit (Bank 2) Range/
Performance
• Signal pattern incorrect
• Defect counter 12.00
P0347
Camshaft Position Sensor “A”
Circuit (Bank 2) Low
• Signal voltage permanently low
and
• Crankshaft signals 8
P0348
Camshaft Position Sensor “A”
Circuit (Bank 2) High
• Signal voltage permanently
high
and
• Crankshaft signals 8
Audi
A8/A8L/S8 Quick Reference Specification Book • September 2013 309
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0351
Ignition Coil “A” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0352
Ignition Coil “B” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0353
Ignition Coil “C” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0354
Ignition Coil “D” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0355
Ignition Coil “E” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0356
Ignition Coil “F” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0357
Ignition Coil “G” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0358
Ignition Coil “H” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0359
Ignition Coil “I” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0360
Ignition Coil “J” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
310 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P0361
Ignition Coil “K” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0362
Ignition Coil “L” Primary/
Secondary Circuit
• Signal current < 0.25 to
2.0 mA
or
• Internal check failed
P0366
Camshaft Position Sensor
“B” Circuit (Bank 1) Range/
Performance
• Signal pattern incorrect
• Defect counter 12
P0367
Camshaft Position Sensor “B”
Circuit (Bank 1) Low Input
• Signal voltage permanently low
• Crankshaft signals 8.00
P0368
Camshaft Position Sensor “B”
Circuit (Bank 1) High Input
• Signal voltage permanently
high
• Crankshaft signals 8.00
P0391
Camshaft Position Sensor
“B” Circuit (Bank 2) Range/
Performance
• Signal pattern incorrect
• Defect counter 12
P0392
Camshaft Position Sensor “B”
Circuit (Bank 2) Low Input
• Signal voltage permanently low
and
• Crankshaft signals 8.00
P0393
Camshaft Position Sensor “B”
Circuit (Bank 2) High Input
• Signal voltage permanently
high
and
• Crankshaft signals 8.00
Additional Exhaust Regulation
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0410
Secondary Air Injection
System Malfunction
Difference ambient pressure vs.
AIR pressure measured with
AIR pressure sensor > 5.00 hPa
P0418
Secondary Air Injection
System Relay A Circuit
Signal voltage 4.70 - 5.40 V
P0419
Secondary Air Injection
System Relay B Circuit
Signal voltage 4.70 - 5.40 V
P0420
Catalyst System, Bank1
Efficiency Below Threshold
< 1.0
P0421
Catalyst System Efficiency
(Bank 1)
EWMA filter value for catalyst
< 0.2
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 311
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0430
Catalyst System, Bank 2
Efficiency Below Threshold
< 1.0
P0431
Catalyst System, Bank 2
Efficiency Below Threshold
EWMA filter value for catalyst
< 0.2
P0441
Evaporative Emission System
Incorrect Purge Flow
• Deviation lambda control
< 3.7 - 4.9%
and
• Deviation idle control < 30%
P0442
Evaporative Emission System
Leak Detected (small leak)
Time for pressure drop < 1.7 2.2 Sec.
P0444
Evaporative Emission System
Purge Control Valve Circuit
Open
Signal voltage > 4.70 - 5.40 V
P0449
Evaporative Emission System
Vent Valve/Solenoid Circuit
Signal voltage > 4.4 - 5.5 V
P0450
Evaporative Emission System
Open Circuit
Signal voltage 0.39 - 0.55 V
P0451
Evaporative Emission System
Pressure Sensor/Switch
Range/Performance
NVLD switch position stuck
closed
P0452
EVAP Emission Control
Sysstem Pressure Sensor
Low Input
Signal voltage < 0.24 V
P0453
Evaporative Emission System
Short to Battery +
Signal voltage > 3.0 V
P0455
Evaporative Emission System
Leak Detected (gross leak/no
flow)
Time for pressure drop
< 0.95 - 1.1 Sec.
P0456
EVAP Emission Control
System (very small Leak)
Leak Detected
NVLD switch position open
P0458
Evaporative Emission System
Purge Control Valve Circuit
Low
Signal voltage, < 0.0 - 3.26 V
P0459
Evaporative Emission System
Purge Control Valve Circuit
High
Signal current > 2.20 A
312 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P0491
Secondary Air Injection
System (Bank 1) Insufficient
Flow
• AIR pressure measured with
AIR pressure sensor vs.
modeled < 74 - 75%
or
• Absolute deviation of raw
pressure signal from filtered
signal: mean value < 1.21 hPa
P0492
Secondary Air Injection
System (Bank 2)
• AIR pressure measured with
AIR pressure sensor vs.
modeled < 74 - 75 %
or
• Absolute deviation of raw
pressure signal from filtered
signal: mean value < 1.21 hPa
Speed and Idle Control
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0501
Vehicle Speed Sensor “A”
Range/Performance
Speed sensor signal: plausibility
error failure
P0502
Vehicle Speed Sensor “A”
Range/Performance
Speed sensor signal: electrical
error failure
P0506
Idle Air Control System - RPM
Lower Than Expected
• Engine speed deviation,
> 100 RPM
and
• RPM controller torque value ≥
calculated max value
P0507
Idle Air Control System RPM
Higher Than Expected
• Engine speed deviation
< 100 RPM
and
• RPM controller torque value ≤
calculated min. value
or
• Integrated number of fuel cut
off transitions ≥ n.a.
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 313
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P050A
Idle Air Control System
RPM Lower or Higher Than
Expected
Out of range low
• Engine speed deviation > 150
RPM
and
• RPM controller torque value ≥
calculated max. value
Out of range high
• Engine speed deviation < -200
RPM
and
• RPM controller torque value ≤
calculated min. value
or
• Integrated number of fuel cut
off transitions ≥ n.a.
P050B
Cold Start Idle Air Control
System Performance
Difference between commanded
spark timing vs. actual value
> 18.00%
P052A
Cold Start “A” Camshaft
Position Timing OverAdvanced
Target error
• Difference between target
position vs. actual position
> 10.00 - 40.00° CA
P052C
Cold Start “A” Camshaft
Position Timing OverAdvanced
Target error
• Difference between target
position vs. actual position
> 10.00 - 40.00° CA
P053A
Positive Crankcase Ventilation
Heater Control Circuit /Open
Open circuit-signal voltage
failure
P053B
Positive Crankcase Ventilation
Heater Control Circuit Low
Short to ground-signal voltage
failure
P053C
Positive Crankcase Ventilation
Heater Control Circuit High
Short to battery plus-signal
current failure
P053F
Cold Start Fuel Pressure
Performance
• Difference between target
pressure vs. actual pressure
< -1.50
or
• Difference between target
pressure vs. actual pressure
> 1.50
P054A
Cold Start “B” Camshaft
Position Timing OverAdvanced
Target error
• Difference between target
position vs. actual position
> 10.00 to 22.00° CRK
314 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
P054C
Error Message
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TSB/Document ID: Quick Reference
Replacement Service Bulletin Number:
MFR Communication Date: 2013-09-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
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