QRSB-2014 Audi A Service Bulletin/Repair Instructions

P0157
HO2 Sensor Circuit Low

Voltage Bank 2 Sensor 2
• Signal voltage, < 20mV

and

• Internal resistance < 10 Ω
P0158
HO2 Sensor Circuit High

Voltage Bank 2 Sensor 2
Signal voltage > 1.2 V
P0159
O2 Circuit Slow Response

Bank 1, Sensor 2
• O2S signal rear- signal too

slow- 1[-]

• Maximum allowed rich to lean

switching time
P0160
HO2 Sensor Circuit No Activity • Signal voltage, 0.376 - 0.474 V

Detected

• O2S rear internal resistance

Bank 2 Sensor 2

> 60 KΩ
P0161
HO2 Sensor Heater Circuit

Bank 1, Sensor 2
Heater resistance, > 10K Ω
P0169
Incorrect Fuel Composition
Plausabity check - failed
P0171
System Too Lean Bank 1
System too lean adaptive value

> 0.0075 [g/rev]
P0172
System Too Rich Bank 1
System too rich adaptive value

< -0.0075 [g/rev]
P0174
System Too Lean Bank 2
System too lean adaptive value

> 0.0075 [g/rev]
P0175
System Too Rich Bank 2
System too rich adaptive value

< -0.0075 [g/rev]
Audi A5/S5 Quick Reference Specification Book
•
September 2013
245
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and

Threshold Value
P017B
Cylinder Head Temperature

Sensor Circuit Range/

Performance
• Measured cylinder head

temperature below modeled

• Difference ETC vs AAT vs

IAT at engine start < 26.5° C

(depending on engine off time)

map (1)

• Difference CHDT vs ECT

at engine start > 26.5° C

(depending on engine off time)

map (1)

• Difference CHDT vs IAT

at engine start > 26.5° C

(depending on engine off time)

map (1)

• Difference CHDT vs AAT

at engine start > 26.5° C

(depending on engine off time)

map (1)
P017C
Cylinder Head Temperature

Sensor Circuit Low
Cylinder head temperature

> 215° C
P017D
Cylinder Head Temperature

Sensor Circuit High
Cylinder head temperature

< - 60° C
P0190
Fuel Rail Pressure Sensor “A”

Circuit
Signal voltage > 4.6 V
P0191
Fuel Rail Pressure Sensor “A”

Circuit Range/Performance
Actual pressure > 16.85 MPa
P0192
Fuel Rail Pressure Sensor “A”

Circuit Low
Signal voltage < 0.2 V
P0201
Injector Circuit/Open Cylinder 1
• Signal current < 10 A

and

• Signal voltage > 3.5 V
P0202
Injector Circuit/Open Cylinder 2
• Signal current < 10 A

and

• Signal voltage > 3.5 V
P0203
Injector Circuit/Open Cylinder 3
• Signal current < 10 A

and

• Signal voltage > 3.5 V
P0204
Injector Circuit/Open Cylinder 4
• Signal current < 10 A

and

• Signal voltage > 3.5 V
P0205
Injector Circuit/Open Cylinder 5
• Signal current < 10 A

and

• Signal voltage > 3.5 V
246
Audi A5/S5 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and

Threshold Value
P0206
Injector Circuit/Open Cylinder 6
• Signal current < 10 A

and

• Signal voltage > 3.5 V
P0221
Throttle/Pedal Position

Sensor/Switch “B” Circuit

Range/Performance
• TPS 1 - TPS 2 > 5.79°

and

• Relative mass air integral

> 100... at 0.45 s
P0222
Throttle/Pedal Position

Sensor/Switch “B” Circuit Low
Signal voltage < 0.117 V
P0223
Throttle/Pedal Position

Sensor/Switch “B” Circuit High
Signal voltage > 4.6 V
P0234
Turbocharger/Supercharger

Overboost Condition

Rationality Check High
Difference of set value boost

pressure vs. actual boost

pressure value > 200 1275 hPa
P0235
Turbocharger/Supercharger

Boost Sensor “A” Circuit
Difference between actual

measured charge pressure

quotient and target charge

pressure quotient (1)

> 0.25 - 35 [-] depending on

altitude
P0236
Turbocharger/Supercharger

Boost Sensor “A” Circuit

Range/Performance
• Pressure difference in cross

check between boost pressure

sensor 1/2; IM pressure

> 7 kPa

• Pressure difference in cross

check between . boost

pressure sensor 1/2 and lM

> 12...27 kPa

• Pressure difference in cross

check between pressure

sensor 1 and 2 > 12.5 kPa

• Fuel trim activity (bank with

deviation is considered to be

defective) > 15%
P0237
Turbocharger/Supercharger

Boost Sensor “A” Circuit Low
Signal voltage < 0.2 V
P0238
Turbocharger/Supercharger

Boost Sensor “A” Circuit High
Signal voltage > 4.8 V
Audi A5/S5 Quick Reference Specification Book
•
September 2013
247
DTC Chart
DTC
DTC
Error Message
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; IM pressure,

ambient pressure > 7 kPa

• Pressure difference in cross

check between boost pressure

sensor 1/2; IM pressure > 12

- 27 kPa

• Pressure difference in cross

check between pressure

sensor 1 and 2 > 12.51 kPa

• Fuel trim activity (bank with

deviation is considered to be

defective > 151%
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
248
• 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 A5/S5 Quick Reference Specification Book
•
September 2013
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, > 2.5 V
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 Shorted

(Bank 1)
Signal voltage > 2.0 V
P2010
Intake Manifold Runner

Control Circuit High
Signal voltage < 1.95 to 2.2 V
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) Fuel Vapor

Temperature Sensor Circuit
Signal Current < 0.8 mA
• Signal current < 10 A

and

• Signal voltage < 3.5 V
Audi A5/S5 Quick Reference Specification Book
•
September 2013
DTC Chart
• Signal current < 10 A

and

• Signal voltage < 3.5 V
249
DTC
Error Message
P2025
Evaporative Emissions

(EVAP) Fuel Vapor

Temperature Sensor

Performance
• Response time > 1000 ms and

number of checks > 3.00 • Security bit incorrect and

number of checks > 3.00 • Resetcounter > 3.00 • Time difference between ECU

and EVAP Fuel Tank Temp

Sensor > 3.0

1...27 282930 31...38

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Last update on 2026-05-11 / Affiliate links / Images from Amazon Product Advertising API

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