NHTSA ID Number: 10203512
Manufacturer Communication Number: QRSB Audi
A8 A8L
TSB/Document Date: 2021-11-15
Summary
Quick reference specification book.
Malfunction Criteria and
Threshold Value
P0240
Turbocharger/Supercharger
Boost Sensor "B" Circuit
Range/Performance
• Pressure difference in cross
check between boost pressure
sensor 1/2; inlet charger
pressure and ambient
pressure sensor > 7 kPa
• Pressure difference in cross
check between boost pressure
sensor 1/2 and inlet charger
pressure (1) > 12 -27 kPa
• Pressure difference in cross
check between boost pressure
sensor 1 and 2 > 12.5 kPa
• Fuel trim activity (bank with
deviation is considered to be
defective) > 15%
P0241
Turbocharger/Supercharger
Boost Sensor "B" Circuit Low
Signal voltage < 0.2 V
P0242
Turbocharger/Supercharger
Boost Sensor "B" Circuit High
Signal voltage > 4.8 V
P025A
Fuel Pump Module Control
Circuit/Open
Signal voltage < 2.9 to 3.2 [V]
P025C
Fuel Pump Module Control
Circuit Low
Signal voltage < 1.95 to 2.2 V
P025D
Fuel Pump Module Control
Circuit High
Signal current > 1 to 2 A
P0261
Cylinder 1 Injector Circuit Low
• Signal current < 10 A
and
• Signal voltage > 3.5 V
P0262
Cylinder 1 Injector Circuit High Signal current > 16 A
P0264
Cylinder 2 Injector Circuit Low
P0265
Cylinder 2 Injector Circuit High Signal current > 16 A
P0267
Cylinder 3 Injector Circuit Low
P0268
Cylinder 3 Injector Circuit High Signal current > 16 A
P0270
Cylinder 4 Injector Circuit Low
P0271
Cylinder 4 Injector Circuit High Signal current > 16 A
• Signal current < 10 A
and
• Signal voltage > 3.5 V
• Signal current < 10 A
and
• Signal voltage > 3.5 V
• Signal current < 10 A
and
• Signal voltage > 3.5 V
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 219
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0273
Cylinder 5 Injector Circuit Low
P0274
Cylinder 5 Injector Circuit High Signal current > 16 A
P0276
Cylinder 6 Injector Circuit Low
P0277
Cylinder 6 Injector Circuit High Signal current > 16 A
P0299
Turbocharger / Supercharger
Under-boost
Rationality check
Difference set value boost
pressure vs actual boost
pressure value, >150 hPa
P2004
Intake Manifold Runner
Control Stuck Open Bank 1
Signal voltage > 2.5V
P2005
Intake Manifold Runner
Control Stuck Open Bank 2
Signal voltage < 2.5 V
P2006
Intake Manifold Runner
Control Stuck Closed Bank 1
Signal voltage < 2.9 V
P2007
Intake Manifold Runner
Control Stuck Closed Bank 2
Signal voltage > 2.9 V
P2008
Intake Manifold Runner
Control Circuit/Open
Signal voltage 2.9 to 3.2 V
P2009
Intake Manifold Runner
Control Circuit Low
Signal voltage < 1.95 to 2.2 V
P2010
Intake Manifold Runner
Control Circuit High
Signal current 1.2 A
P2014
Intake Manifold Runner
Position Sensor/Switch Circuit
(Bank 1)
Signal voltage < 0.2 V
P2017
Intake Manifold Runner
Position Sensor/Switch Circuit
High Bank 1
Signal voltage > 4.8 V
P2019
Intake Manifold Runner
Position Sensor/Switch Circuit
Bank 2
Signal voltage < 0.2 V
P2022
Intake Manifold Runner
Position Sensor/Switch Circuit
High Bank 2
Signal voltage > 4.8 V
P2024
Evaporative Emissions (EVAP) Signal current < 0.8 mA
Fuel Vapor Temperature
Sensor Circuit
• Signal current < 10 A
and
• Signal voltage > 3.5 V
• Signal current < 10 A
and
• Signal voltage > 3.5 V
220 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P2025
Evaporative Emissions (EVAP) • Response time > 1000 ms and
Fuel Vapor Temperature
number of checks > 3.00
Sensor Performance
• Security bit incorrect and
number of checks > 3.00
• Resetcounter > 3.00
• Time difference between ECU
and EVAP Fuel Tank Temp
Sensor > 3.0 s
Case 1:
• EVAP Fuel Tank Temp Sensor
> 119 °C
• EVAP Fuel Tank Temp Sensor
< -39 °C
• Difference between EVAP Fuel
Tank Temp Sensor and ECT
≥ 20.3 K and difference
between EVAP Fuel Tank
Temp Sensor and IAT ≥ 20.3 K
gradient EVAP Fuel Tank Temp
Sensor > 20 [K/10min]
P2026
Evaporative Emissions (EVAP) Signal voltage < 2.0 V
Fuel Vapor Temperature
Sensor Circuit Low Voltage
P2027
Evaporative Emissions (EVAP) Signal current > 1.0 A
Fuel Vapor Temperature
Sensor Circuit High Voltage
P2088
A Camshaft Position Actuator
Control Circuit Low Bank 1
Signal voltage, < 1.95 to 2.20 V
P2089
A Camshaft Position Actuator
Control Circuit High Bank 1
Signal current, > 3 to 5 A
P2092
A Camshaft Position Actuator
Control Circuit Low Bank 2
Signal voltage, < 1.95 to 2.20 V
P2093
A Camshaft Position Actuator
Control Circuit High Bank 2
Signal current, > 3 to 5 A
P2096
Post Catalyst Fuel Trim
System Too Lean Bank 1
Integral part of trim control post
cat. > 10%
P2097
Post Catalyst Fuel Trim
System Too Rich Bank 1
Integral part of trim control post
cat. < 10%
P2098
Post Catalyst Fuel Trim
System Too Lean Bank 2
Integral part of trim control post
cat. > 10%
P2099
Post Catalyst Fuel Trim
System Too Rich Bank 2
Integral part of trim control post
cat. < 10%
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 221
DTC Chart
DTC
DTC
P3081
Error Message
Engine Temperature Too Low
Malfunction Criteria and
Threshold Value
Step 1
• Modeled ECT > 30° C
and
• ECT < 30° C
Ignition System
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0300
Random/Multiple Cylinder
Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0301
Cylinder 1 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0302
Cylinder 2 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0303
Cylinder 3 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0304
Cylinder 4 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0305
Cylinder 5 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
222 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P0306
Cylinder 6 Misfire Detected
• Emission threshold misifre rate
(MR) 1st interval > 1.5%
• Emission threshold misfire rate
(MR) > 1.5%
• Catalyst demage,misfire rate
(MR) > 1.5 - 15%
P0326
Knock Sensor 1 Circuit
• Lower threshold < 0.029 V
Range/Performance Bank 1 or • Upper threshold > 1.992 V
Single Sensor
P0327
Knock Sensor 1 Circuit Low
Bank 1 or Single Sensor
• Lower threshold < 0.18 V
P0328
Knock Sensor 1 Circuit High
Bank 1 or Single Sensor
• Upper threshold > 14.8 V
P0331
Knock Sensor 2 Circuit
Range/Performance Bank 2
• Lower threshold < 0.029 V
• Upper threshold > 1.992 V
P0332
Knock Sensor 2 Circuit Low
Bank 2
• Lower threshold < 0.18 V
P0335
Engine Speed Sensor
• Open circuit > 1 V
• Short to grnd < 1.5 V
• Short to Battery voltage
> 3.5 V
• Signal check no signal
P0336
Crankshaft Position
Sensor “A” Circuit Range/
Performance
• RPM Signal comparison with
phase sensor not synchronous
• Counted versus reference
teeth > 1
• Actual time value vs modeled
time value > 1.375
P0340
Camshaft Position Sensor
“A” Circuit Bank 1 or Single
Sensor
Signal activity check
• Signal voltage no altering @
4 Rev
P0341
Camshaft Position Sensor "A"
Circuit Range/Performance
Bank 1 or Single Sensor
• Actual time value vs. min. time
value < 1
• Adaptive value vs. target value
> 12.4 °CA
• Actual time value vs. modeled
time value > 3.5
P0345
Camshaft Position Sensor "A"
Circuit Bank 2
Signal activity check
• Signal voltage no altering @
4 Rev
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 223
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0346
Camshaft Position Sensor “A”
Circuit Range/Performance
Bank 2
• Actual time value vs. min. time
value < 1
• Adaptive value vs. target value
> 12.4° CA
• Actual time value vs. modeled
time value > 3.5
P0351
Ignition Coil “A” Primary/
Secondary Circuit
Open circuit
• Signal current < -0.05 0.2 mA
• Hardware value from final
stage > 0.04 - 0.2 mA
P0352
Ignition Coil “B” Primary/
Secondary Circuit
Short to ground
• Signal current < -0.05 0.2 mA
• Hardware value from final
stage > 0.04 - 0.2 mA
P0353
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TSB/Document ID: QRSB Audi A8 A8L
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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