Engine Coolant Temperature
Sensor 1 Circuit Low Input

Engine coolant temperature
> 140°C

P0118

Engine Coolant Temperature
Sensor 1 Circuit Open

Engine coolant temperature
< -40°C

P0121

Throttle/Pedal Position Sensor • TPS 1 - TPS 2 > 6.30%
A Circuit Range/Performance
and
• Actual TPS 1 calculated value
> actual TPS 2 calculated
value
or
• TPS 1 calculated value
> 9.00%

P0122

Throttle/Pedal Position Sensor Signal voltage < 0.20 V
A Circuit Low Input

P0123

Throttle/Pedal Position Sensor Signal voltage > 4.81 V
A Circuit High Input

P0130

O2 Sensor Circuit (Bank 1,
Sensor 1)

O2S ceramic temperature
< 640°C

P0131

O2 Sensor Circuit (Bank 1,
Sensor 1) Low Voltage

Virtual mass < 2.0 V
Nernst voltage < 1.50 V
Adjustment voltage < 0.30 V

P0132

O2 Sensor Circuit (Bank 1,
Sensor 1) High Voltage

Virtual mass > 3.25 V
Nernst voltage > 4.40 V
Adjustment voltage > 7 V

212

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November 2012

Error Message

Malfunction Criteria and
Threshold Value

P0133

O2 Circuit Slow Response
(Bank 1, Sensor 1)

Symmetric fault:
• Lower value of both area ratios
R2L and L2R < 0.30
and
• Difference of R2L area ratio vs.
L2R area ratio -0.400 - 0.400
Asymmetric fault:
• Lower value of both area ratios
R2L and L2R < 0.30
and
• Difference of R2L area ratio vs.
L2R area ratio NOT
(-0.400 - 0.400)
General:
• Lower value of both counters
for area ratio R2L and L2R ≥
5 times

P0135

O2 Heater Circuit (Bank 1,
Sensor 1)

• O2S ceramic temperature
< 715°C
and
• Heater duty cycle 100%
• O2S ceramic temperature
< 715°C
and
• Time after O2S heater on 40
Sec.

P0136

O2 Circuit (Bank 1, Sensor 2)

• Delta voltage one step at
heater switching > 2.00 V
and
• Number of heater coupling
≥ 6 times

P0137

O2 Circuit Low Voltage (Bank
1, Sensor 2)

• Signal voltage < 0.06 V for
time > 3 Sec.
and
• Difference of sensor voltage
with load pulse and voltage
without load pulse (mean value
of 3 measurements) < 0.01 V

P0138

O2 Circuit High Voltage (Bank
1, Sensor 2)

Signal voltage > 1.26 V for
> 5 Sec.

Audi A5/S5 Quick Reference Specification Book

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November 2012

213

DTC Chart

DTC

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0139

O2 Circuit Slow Response
(Bank 1, Sensor 2)

• EWMA filtered transient time at
fuel cut off > 0.7 Sec.
• In voltage range 201 347.7 mV
• Number of checks (initial
phase) > 3
• Number of checks (step
function) > 3

P0140

O2 Circuit No Activity
Detected (Bank 1, Sensor 2)

• Signal voltage .40 - .60 mV
for > 3 Sec
or
• Difference in sensor voltage
with load pulse and voltage
without load pulse (mean value
of 3 measurements) ≥ 2.80 V

P0141

O2 Heater Circuit
(Bank 1, Sensor 2) Out of
Range

Heater resistance 810 - 4560 Ω

P0145

O2 Circuit Slow Response
(Bank 1, Sensor 2)

• EWMA filtered transient time at
fuel cut off > 0.4 Sec.
• In voltage range 401.4 201.2 mV
• Number of checks (initial
phase) > 3
• Number of checks (step
function) > 3

P0169

Incorrect Fuel Composition

Comparison with fuel quantity
incorrect

P0171

System Too Lean (Bank 1)

At idle
• Adaptive value > 21%
At part-load
• Adaptive value 26% (only B8
ULEVVII)

P0172

System Too Rich (Bank 1)

At idle
• Adaptive value < 5.02%
(< 6.0% only B8 ULEV)
At part-load
• Adaptive value < 21%
(< -26% only B8 ULEVVII)

P0190

Fuel Rail Pressure Sensor A
Circuit

Signal voltage > 4.8 V

P0191

Fuel Rail Control Valve, High
Pressure Side

Actual pressure > 20.6 MPa

214

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Error Message

Malfunction Criteria and
Threshold Value

P0192

Fuel Rail Pressure Sensor A
Circuit Low Input

Signal voltage < 0.2 V

P0201

Injector Circuit/Open Cylinder 1

• Low side signal current < 2.1 A
• Internal logic failure

P0202

Injector Circuit/Open Cylinder 2

• Low side signal current < 2.1 A
• Internal logic failure

P0203

Injector Circuit/Open Cylinder 3

• Low side signal current < 2.1 A
• Internal logic failure

P0204

Injector Circuit/Open Cylinder 4

• Low side signal current < 2.1 A
• Internal logic failure

P0221

Throttle/Pedal Position
Sensor/Switch B Circuit
Range/Performance

• TPS 1 - TPS 2 > 6.30%
and
• Actual TPS 2 calculated value
> actual TPS 1 calculated
value
or
• TPS 2 calculated value
> 9.00%

P0222

Throttle/Pedal Position
Sensor/Switch B Circuit Low
Input

Signal voltage < 0.20 V

P0223

Throttle/Pedal Position
Sensor/Switch B Circuit High
Input

Signal voltage > 4.81 V

P0234

Turbocharger/Supercharger
Overboost Condition
Rationality Check High

Difference of set value boost
pressure vs. actual boost
pressure value > 200 1280 hPa

P0236

Turbocharger Boost Sensor A
Plausability Check

Difference in boost pressure
signal vs. altitude sensor signal
> 220 hPa
or
< 120 hPa

P0237

Turbocharger/Supercharger
Boost Sensor A Circuit Low

Signal voltage < 0.2 V

P0238

Turbocharger/Supercharger
Boost Sensor A Circuit High

Signal voltage > 4.88 V

P0243

Turbocharger/Supercharger
Wastegate Solenoid A

Signal voltage > 4.40 - 5.60 V

P0245

Turbocharger/Supercharger
Wastegate Solenoid A Low

Signal voltage < 2.15 - 3.25 V

Audi A5/S5 Quick Reference Specification Book

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November 2012

215

DTC Chart

DTC

DTC

Error Message

Malfunction Criteria and
Threshold Value

P0246

Turbocharger/Supercharger
Wastegate Solenoid A High

Signal current > 2.20 A

P0261

Cylinder 1 Injector Circuit Low

Signal current < 2.10 A

P0262

Cylinder 1 Injector Circuit High Signal current > 14.70 A

P0264

Cylinder 2 Injector Circuit Low

P0265

Cylinder 2 Injector Circuit High Signal current > 14.70 A

P0267

Cylinder 3 Injector Circuit Low

P0268

Cylinder 3 Injector Circuit High Signal current > 14.70 A

P0270

Cylinder 4 Injector Circuit Low

P0271

Cylinder 4 Injector Circuit High Signal current > 14.70 A

P0299

Turbocharger/Supercharger
Underboost Rationality Check
Low

Difference of set boost pressure
vs. actual boost pressure value
> 150 hPa

P2004

Intake Manifold Runner
Control Stuck Open Bank 1

• Normal closed position, unable
to reach signal voltage < 2.62
or > 4.65 V
or
• Normal open position, unable
to reach signal voltage < 0.35
or > 2.38 V

P2008

Intake Manifold Runner
Control Circuit/Open (Bank 1)

Signal voltage 4.40 - 5.60 V

P2009

Intake Manifold Runner
Control Circuit Shorted
(Bank 1)

Signal voltage 2.15 - 3.25 V

P2010

Intake Manifold Runner
Control Circuit Shorted to B+
(Bank 1)

Signal current > 2.20 A

P2014

Intake Manifold Runner
Position Sensor/Switch Circuit
(Bank 1)

Signal voltage > 4.75 V

P2015

Intake Manifold Runner
Position Sensor/Switch Circuit
Range/Performance (Bank 1)

Deviation runner flap position
vs. actual position > 25%

P2016

Intake Manifold Runner
Position Sensor/Switch Circuit
Low (Bank 1)

Signal voltage < 0.25 V

P2088

Camshaft Position A Actuator
Control Circuit Low (Bank 1)
Short to Ground

Signal voltage < 2.15 - 3.25 V

216

Signal current < 2.10 A
Signal current < 2.10 A
Low side signal current < 2.10 A

Audi A5/S5 Quick Reference Specification Book

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November 2012

Error Message

Malfunction Criteria and
Threshold Value

P2089

Camshaft Position A Actuator
Control Circuit High (Bank 1)
Short to B+

Signal current > 2.2 A

P2096

Post-Catalyst Fuel Trim
System Too Lean (Bank 1)

I-portion of 2nd lambda control
loop < 0.030

P2097

Post-Catalyst Fuel Trim
System Too Rich (Bank 1)

I-portion of 2nd lambda control
loop > 0.030

P3081

Engine Temperature Too Low

Reference model temperature measured engine coolant temp.
> 10 [K]

Ignition System
DTC

Error Message

Malfunction Criteria and
Threshold Value

P0300

Crankshaft Speed Fluctuation
(Single or Multiple)

• Emission threshold misfire rate
(MR) > 1.7%
• Catalyst damage misfire rate
(MR) > 5.0 - 20.0%

P0301

Crankshaft Speed Fluctuation
(Single or Multiple)

• Emission threshold misfire rate
(MR) > 1.7%
• Catalyst damage misfire rate