NHTSA ID Number: 10203511
Manufacturer Communication Number: QRSB AUDI
A7
TSB/Document Date: 2021-11-15
Summary
Quick reference specification book.
Pressure Sensor/Switch
Range/Performance
NVLD switch position closed
200
Audi A7 Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0452
EVAP Emission Control
System Pressure Sensor Low
Input
Signal voltage < 0.24 V
P0453
EVAP Emission Control
System Pressure Sensor High
Input
Signal voltage > 3.0 V
P0455
Evaporative Emission System
Purge Control Valve, Short
to Ground or Short to Battery
Plus
Time for pressure drop (3)
< 0.65 - 0.7 s
P0456
Evaporative Emission System
Leak Detected (Very Small
Leak)
NVLD switch position open
P0458
Evaporative Emission System
Purge Control Valve Circuit
Low
Signal voltage < 2.15 - 3.25 V
P0459
Evaporative Emission System
Purge Control Valve Circuit
High
Signal current > 2.2 A
P0491
Secondary Air System
Insufficient Flow (Bank 1)
Difference between reference
AIR mass flow and calculated
AIR mass flow > 18 - 21 kg/h
P0492
Secondary Air System
Insufficient Flow (Bank 2)
Difference between reference
AIR mass flow and calculated
AIR mass flow > 18 - 21 kg/h
Speed and Idle Control
Error Message
Malfunction Criteria and
Threshold Value
P0501
Vehicle Speed Sensor A
Range/Performance
Vehicle speed signal < 1.24 mph
P0502
Vehicle Speed Sensor A
Circuit Low Input
Sensor signal failure
P0503
Vehicle Speed Sensor A Out
of Range/High
Vehicle speed signal > 203.5
km/h
P0506
Idle Air Control System - RPM
Lower Than Expected
• Engine speed deviation < -80
RPM
P0507
Idle Air Control System - RPM
Higher Than Expected
• Engine speed deviation
> 80 RPM
Audi A7 Reference Specification Book
•
September 2013
201
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P050A
Idle Control System RPM Out
of Range
• Out of range low < -80 -250 RPM
• Out of range high
> 80 - 250 RPM
P050B
Cold Start Ignition Timing
Performance
Difference between commanded
spark timing vs. actual timing
(mean value during catalyst
heating) > 15%
P052A
Intake (A) Camshaft Position
Actuator Circuit / (Bank 1)
Adjustment angle difference
> 10 °CA
P052C
Intake (A) Camshaft Position
Actuator Circuit / (Bank 2)
Adjustment angle difference
> 10 °CA
P053F
Fuel Rail Pressure Control
Valve
Target pressure-actual pressure
> 1.5 MPa
Control Module and Output Signals
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0601
Internal Control Module
Memory Check Sum Error
Internal check sum, incorrect
P0603
Internal Hardware Check
SPI Communication lost
P0606
ECM Processor
SPI Communication lost
P0627
Fuel Pump A Control Circuit/
Open
• Internal error fuel pump control
unit
• Feedback from fuel pump
control unit pump blocked
short circuit to battery +,
ground or open circuit
P0638
Throttle Actuator Control
Range/Performance (Bank 1)
• Actual TPS - calc. value and
> 8° duty cycle > 0.4 s at 98%
and
• Actual TPS - ref. point < 1.5°
• Open to 15° > 1.275s then
close to ref. point > 1.28s
gradient < 7°/s
or
• Close to 1.99° > 1.275s then
open to ref. point >1.28s
gradient < 7°/s
• TPS 1 signal voltage 0.208
- 0.852 V or TPS 2 signal
voltage 4.158 - 4.802 V
202
Audi A7 Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
Sensor Reference Voltage A
Circuit Low
Signal voltage < 4.615 V
P0643
Sensor Reference Voltage A
Circuit High
Signal voltage > 5.434 V
P0652
Sensor Reference Voltage B
Circuit Low
Signal voltage < 4.615 V
P0653
Sensor Reference Voltage B
Circuit High
Signal voltage > 5.434 V
P0657
Actuator Supply Voltage A
Circuit/Open
Signal voltage < 2.9 - 3.2 V
P0658
Actuator Supply Voltage A
Circuit Low
Signal voltage < 1.95 - 2.2 V
P0659
Actuator Supply Voltage A
Circuit High
Signal current > 1 - 2 A
P0686
ECM/PCM Power Relay
Control Circuit Low
• Sense circuit voltage > 6.0 V
P0687
ECM/PCM Power Relay
Control Circuit High
• Sense circuit voltage < 5.0 V
U0001
High Speed CAN
Communication Bus
CAN message, no feedback
U0002
High Speed CAN
Communication Bus
Global time out
U0101
Lost Communication with TCM CAN communication with TCM,
time out. No message
received by ECM
U0121
CAN ABS Brake Unit
CAN communication with ABS,
no message
U0140
CAN communication with
Body Control Module 1
CAN message - no message
U0146
CAN Gateway A
CAN communication with
gateway, time out
U0155
Received CAN message - no
message
U0302
Software Incompatibility with
Transmission Control Module
Manual transmission vehicle,
TCM coded as automatic
transmission vehicle
U0322
Software Incompatibility with
Body Control Module
Ambient temperature value
(module not encoded for
ambient temperature sensor)
Audi A7 Reference Specification Book
•
September 2013
DTC Chart
P0642
203
DTC
Error Message
Malfunction Criteria and
Threshold Value
U0402
CAN Communication with
TCM
Received data from TCM
implausible message
U0404
Invalid Data Received From
Gear Shift Control Module
• If the value of message
counter is permanent,
constant, or change exceeds a
threshold, increment an event
counter
• Maximum change of message
counter > 5
U0415
CAN Link to Speed Sensor
Vehicle speed via CAN out of
range = 655.35 km/h
U0422
CAN: Vehicle Speed Sensor
• Speed sensor signal:
initialization error 655.34km/h
• Speed sensor signal: low
voltage error 655.33km/h
• Speed sensor signal: sensor
error 655.35 km/h
• Vehicle speed >/= 325 km/h
U0422
CAN: Instrument cluster
Ambient temperature value
initialization
U0423
Communication with
Instrument Cluster
Received CAN message,
implausible message
U0447
CAN Gateway
Received data from Gateway
implausible message
U1103
(Bank 1 Sensor 1) Heater
Circuit Performance too low
Proiduction mode active
Fuel and Air Ratios Control Module
DTC
Error Message
Malfunction Criteria and
Threshold Value
P10A0
RFP Power stage, Signal
Range Check
• Duty cycle > 95%
or
• Adaptive value < -95%
P10A4
RFP Actuator, Functional
Check
• Adaptive value < 60%
or
• Adaptive value > 88%
P10A5
RFP Sensor, Short to B +
Signal voltage > 4.9 V
P10A6
RFP Sensor, Short to Ground / Signal voltage < 0.1 V
Open Circuit
P10A7
RFP Sensor, Signal Range
Check @ Mechanical Stop
High
204
Difference actual signal voltage
to learned signal voltage
> 0.05 V
Audi A7 Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
P10A8
RFP Sensor, Signal Range
Check @ Mechanical Stop
Low
RFP Signal Voltage in closed
position ≤ 0.35 - ≥ 0.65 V
P12A1
Fuel Rail Pressure Sensor
Inappropriately Low
• Deviation fuel rail pressure
control > -0.051 g/rev
and
• Deviation lambda control
> 30%
P12A2
Fuel Rail Pressure Sensor
Inappropriately High
• Deviation fuel rail pressure
control < -0.060 g/rev
and
• Deviation lambda control
< -22.5%
P12A4
Fuel Rail Pump Control Valve
Stuck Closed
• Deviation fuel rail pressure
control < -0.120 g/rev
and
• Lambda controller output (no
map, just bottom and top limit)
-15 - 15%
Difference between commanded
spark timing vs. actual timing
(mean value during catalyst
heating) > 15%
P150A
Comparing Engine Off Time
From Instrument Cluster
Control Unit With Engine after
Run Time
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TSB/Document ID: QRSB AUDI A7
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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