P2272

O2 Circuit Slow Response
(Bank 1, Sensor 2)

• O2S signal rear not oscillating
at reference <
and
• Enrichment after stuck lean
25.00%

P2273

O2 Circuit Slow Response
(Bank 1, Sensor 2)

• Sensor voltage of ≥ 0.18 V
• After oxygen mass
> 3300 - 400 mg
• (after fuel cut off) and number
of checks ≥1.0

242

Malfunction Criteria and
Threshold Value

Audi A7 Reference Specification Book

•

September 2013

DTC

Error Message

Malfunction Criteria and
Threshold Value

P2279

Intake Air System Leak

• Offset value throttle mass flow
> 17.00 kg/h
and
• Correction factor > 0.97

P2293

Fuel Pressure Regulator 2
Performance

• Difference between target
pressure - actual pressure >
1.30 mPa

P2294

Fuel Pressure Regulator 2
Control Circuit Open Circuit

Open circuit
• Signal voltage 1.40 - 3.20 V
Rationality check
• Signal pattern incorrect

P2295

Fuel Pressure Regulator 2
Control Circuit Low Short to
Ground

Signal voltage < 1.40 - 3.20 V

P2296

Fuel Pressure Regulator 2
Control Circuit High

Short to battery plus signal
voltage > 3.20 V

Ignition System
Error Message

P2300

Ignition Coil A Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2301

Ignition Coil A Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

P2303

Ignition Coil B Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2304

Ignition Coil B Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

P2306

Ignition Coil C Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2307

Ignition Coil C Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

P2309

Ignition Coil D Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2310

Ignition Coil D Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

P2312

Ignition Coil E Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2313

Ignition Coil E Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

Audi A7 Reference Specification Book

Malfunction Criteria and
Threshold Value

•

September 2013

DTC Chart

DTC

243

DTC

Error Message

Malfunction Criteria and
Threshold Value

P2315

Ignition Coil F Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2316

Ignition Coil F Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

P2318

Ignition Coil G Primary Control Short to ground signal current
Circuit Low
> 24.0 mA

P2319

Ignition Coil G Primary Control Short to battery plus signal
Circuit High
voltage > 5.1 - 7.0 V

P2321

Ignition Coil H Primary Control
Circuit Low

Short to ground signal current
> 24.0 mA

P2322

Ignition Coil H Primary Control
Circuit High

Short to battery plus signal
voltage > 5.1 - 7.0 V

Additional Emissions Regulations
DTC

Error Message

P2400

Evaporative Emission System
Leak Detection Pump Control
Circuit/Open

Signal voltage > 4.4 - 5.5 V

P2401

Evaporative Emission System
Leak Detection Pump Control
Circuit Low

Signal voltage < 3V

P2402

Evaporative Emission System
Leak Detection Pump Control
Circuit High

Signal current 2.7 - 5.5 A

P2403

Evaporative Emission System
Leak Detection Pump Sense
Circuit/Open

Low signal voltage > 10.4 Sec.

P2404

Evaporative Emission System
Leak Detection Pump Sense
Circuit Range/Performance

High signal voltage > 10.4 Sec.

P2414

O2 Sensor Signal Range
Check (Bank 1, Bank 2)

• Threshold 1 - Signal voltage
2.71 - 6.00 V
• Threshold 2 - Depending on
gain factor, that actual is used
for sensor characteristic, the
threshold is signal voltage
2.05 - 3.06 V

P2431

Rationality check

Difference between SAI
pressure and ambient pressure
≠ -25.0 - 25.0 hPa

244

Malfunction Criteria and
Threshold Value

Audi A7 Reference Specification Book

•

September 2013

DTC

Error Message

Malfunction Criteria and
Threshold Value

O2 Sensor Signal Range
Check (Bank 1, Bank 2)

• Threshold 1 - Signal voltage
2.71 - 6.00 V
• Threshold 2 - Depending on
gain factor, that actual is used
for sensor characteristic, the
threshold is signal voltage
2.05 - 3.06 V

P2431

Rationality Check

Difference between AIR
pressure, AMP, and MAP -6.0 6.00 kPa

P2432

Signal Range Check

Signal voltage < 0.40 V

P2433

Signal Range Check

Signal voltage > 4.60 V

P2440

Air Valve Stuck Open

• Relative AIR pressure
measured ≤ 3.00 kPa
• Relative AIR pressure
(measured with AIR pressure
sensor vs. modeled) vs.
relative AIR pressure
(measured with AIR pressure
sensor vs. modeled while both
AIR valves closed) >1.50 [-]
• Relative AIR pressure
(measured with AIR pressure
sensor vs. modeled while
valve bank 2 commanded
closed) vs. relative AIR
pressure (measured with
AIR pressure sensor vs.
modeled while valve bank 1
commanded closed) >1.50 [-]
• Difference of average pressure
between absolute value and
filtered value while both valves
commanded closed ≥ 0.30 1.00 kPa

DTC Chart

P2415

Audi A7 Reference Specification Book

•

September 2013

245

DTC

Error Message

Malfunction Criteria and
Threshold Value

P2442

Air Valve Bank 2

• Relative AIR pressure
measured ≤ 3.00 kPa
• Relative AIR pressure
(measured with AIR pressure
sensor vs. modeled) vs.
relative AIR pressure
(measured with AIR pressure
sensor vs. modeled while both
AIR valves closed) >1.50 [-]
• Relative AIR pressure
(measured with AIR pressure
sensor vs. modeled while
valve bank 2 commanded
closed) vs. relative AIR
pressure (measured with
AIR pressure sensor vs.
modeled while valve bank 1
commanded closed) >1.50 [-]
• Difference of average pressure
between absolute value and
filtered value while both valves
commanded closed ≥ 0.30 1.00 kPa

P2539

Low Pressure Fuel System
Sensor Circuit

Signal voltage > 4.80 V

P2540

Low Pressure Fuel System
Sensor Circuit Range/
Performance

Actual pressure deviation < 800
kPa < 80 kPa

P2541

Low Pressure Fuel System
Sensor Circuit Low

Signal voltage < 0.20 V

P2626

O2 Sensor Pumping Current
Trim Circuit/Open (Bank 1
Sensor 1)

O2S signal front > 4.81 V

P2629

O2 Sensor Pumping Current
Trim Circuit/Open (Bank 1
Sensor 1)

O2S signal front > 4.8 V

P31A8

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 8 Short to Ground

Signal voltage < 2.8 - 3.2 V

P31A2

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 2 Short to Ground

Signal voltage < 2.8 - 3.2 V

246

Audi A7 Reference Specification Book

•

September 2013

Error Message

Malfunction Criteria and
Threshold Value

P31A5

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 5 Short to Ground

Signal voltage < 2.8 - 3.2 V

P31A3

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 3 Short to Ground

Signal voltage < 2.8 - 3.2 V

P11BE

Variable Valve Lift (VVL)
• Signal voltage 4.8 - 5.3 V
Actuator,Cylinde 8, Inlet Open, or
Open or Short to Battery
• Signal current 3.74 - 6.8 A
Voltage

P11A7

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 2, Inlet Open, Open
or Short to Battery Voltage

• Signal voltage 4.8 - 5.3 V
or
• Signal current 3.74 - 6.8 A

P11B3

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 5, Inlet Open, Open
or Short to Battery Voltage

• Signal voltage 4.8 - 5.3 V
or
• Signal current 3.74 - 6.8 A

P11AB

Variable Valve Lift (VVL)
Actuator, Inlet Open for
Cylinder 3, Inlet Open, Open
or Short to Battery Voltage

• Signal voltage 4.8 - 5.3 V
or
• Signal current 3.74 - 6.8 A

P31B8

Variable Valve Lift (VVL)
Actuator, Inlet Close for
Cylinder 8 Short to Ground

Signal voltage < 2.8 - 3.2 V

P31B2

Variable Valve Lift (VVL)
Actuator, Inlet Closed for
Cylinder 2 Short to Ground

Signal voltage < 2.8 - 3.2 V

P31B5

Variable Valve Lift (VVL)
Actuator, Inlet Close for
Cylinder 5 Short to Ground

Signal voltage < 2.8 - 3.2 V

P31B3

Variable Valve Lift (VVL)
Actuator, Inlet Close for
Cylinder 3 Short to Ground

Signal voltage < 2.8 - 3.2 V

P11BD Variable Valve Lift (VVL)
Actuator, Inlet Close for
Cylinder 8, Open or Short to
Battery Voltage

• Signal voltage 4.8 - 5.3 V
or
• Signal current 5.5 - 10 A

P11A5

• Signal voltage 4.8 - 5.3 V
or
• Signal current 3 - 6 A

Variable Valve Lift (VVL)
Actuator, Inlet Close for
Cylinder 2, Open or Short to
Battery Voltage

Audi A7 Reference Specification Book