NHTSA ID Number: 10214962
Manufacturer Communication Number: Quick Reference
TSB/Document Date: 2022-07-05
Summary
Audi
Quick Reference Specification Guide.
Cold Start Diesel Intake Air
Flow Control Performance
Signal low
P0604
Internal Control Module
Random Access Memory
(RAM) Error
Read/write error bit set
P0605
Internal Control Module Read
Only Memory (ROM) Error
Internal self test failed
P0606
Internal Control Module
Memory Check Sum Error
• ECM internal self test failed
• RAM error in memory
P0607
Control Module Performance
• Oxygen sensor adaptation
> 0.2 V or < -0.2 V
• Internal communication failed
• Supply voltage for IC < 9 V
or
• Sensor voltage < 0.265 V or
> 3.9 V
P0634
ECM Internal Temperature Too Current over-temperature
High
diagnostic signal from output
driver
• Power stage temperature
> 150 °C
P0638
Throttle Actuator Control
(Bank 1) Range/Performance
Diagnostic signal = low state
P064C
Glow Plug Control Module
Received incorrect number of
cylinders or glow plug type is
unequal to ECU application =
error bit
P0641
Sensor Reference Voltage "A"
Circuit/Open
Voltage supply < 4.7 V or
> 5.3 V
P0651
Sensor Reference Voltage "B"
Circuit/Open
Voltage supply < 4.7 V or
> 5.3 V
P066A
Cylinder 1 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P066C
Cylinder 2 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P066E
Cylinder 3 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067A
Cylinder 4 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
Audi A6/S6 Quick Reference Specification Book
•
September 2013
DTC Chart
P06E5
347
DTC
Error Message
Malfunction Criteria and
Threshold Value
P067B
Cylinder 4 Glow Plug Control
Circuit High
Error message from glow
control unit
P067C
Cylinder 5 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067D
Cylinder 5 Glow Plug Control
Circuit High
Error message from glow
control unit
P067E
Cylinder 6 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067F
Cylinder 6 Glow Plug Control
Circuit High
Error message from glow
control unit
P0671
Cylinder 1 Glow Plug Circuit
Glow current ≤ 2.20 A
P0672
Cylinder 2 Glow Plug Circuit
Glow current ≤ 2.20 A
P0673
Cylinder 3 Glow Plug Circuit
Glow current ≤ 2.20 A
P0674
Cylinder 4 Glow Plug Circuit
Glow current ≤ 2.20 A
P0675
Cylinder 5 Glow Plug Circuit
Glow current ≤ 2.20 A
P0676
Cylinder 6 Glow Plug Circuit
Glow current ≤ 2.20 A
P0683
Glow Plug Control Module to
PCM Communication Circuit
LIN message no feedback
P0697
Sensor Reference Voltage "C"
Circuit/Open
Voltage supply < 4.7 V or
> 5.3 V
U0001
High Speed CAN
Communication Bus
CAN message = no feedback
U0002
High Speed CAN
Communication Bus
Performance
Global time out. Receiving no
messages.
U0028
Vehicle Communication Bus A
CAN message = no feedback
U0029
Vehicle Communication Bus A
Performance
Global time out. Receiving no
messages.
U010E
CAN Communication Error
No Reducing Agent Metering
System Control Module -J880messages received.
U0101
Lost Communication with TCM No TCM messages received.
U0106
Lost Communication With
Glow Plug Control Module
No message received
U0121
Lost Communication With
Anti-Lock Brake System
(ABS) Control Module
No CAN messages received
from ABS module
U0140
Lost Communication With
Body Control Module
No CAN messages from BCM
348
Audi A6/S6 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and
Threshold Value
U0146
Lost Communication With
Gateway "A"
CAN messages from Gateway =
no message.
U0155
Lost Communication With
Instrument Panel Cluster
(IPC) Control Module
No CAN messages received
from Instrument cluster
U0302
Software Incompatibility with
Transmission Control Module
Auto trans messages received
from ECM.
U0307
CAN: Instrument cluster only
Error bit = set
U040F
Invalid Data Received From
Reducing Agent Control
Module
Error bit = set
U0402
Invalid Data Received From
Transmission Control Module
Wrong TCM messages
received.
U0407
Invalid Data Received From
Glow Plug Control Module
Implausible messages received
U0415
Invalid Data Received From
Anti-Lock Brake System
Control Module
• Error bit = set
• Implausible data from ABS
or
• Speed sensor signal = 655.35
km/h
U0423
Invalid Data Received From
Instrument Panel Cluster
Control Module
Error message sent from
instrument cluster = invalid data
U0447
Invalid Data Received From
Gateway "A"
Implausible message from
gateway
U04A4
Ox Sensor Communication
Check / Signal Range Check
Communication Error
U1006
NOx Sensor 1 (Front) No
Communication
No messages from NOx sensor
1 module
U1024
Communications Bus Fault
Error bit set
U1034
NOx Sensor 1 (Front)
Implausible signal
Data from NOx sensor 1 module
implausible
U10C1
NOx Sensor 2 (Rear)
Implausible Signal
Data from NOx sensor 2 module
implausible
U10C2
NOx Sensor 2 (Rear) No
Communication
No messages from NOx sensor
2 module
U140C
Reducing Agent Control
Module Supply Voltage Too
Low
Supply voltage < 8.5 V
Audi A6/S6 Quick Reference Specification Book
•
September 2013
349
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
U140D
Reducing Agent Control
Module Supply Voltage Too
High
Supply voltage > 16.5 V
U140E
Reducing Agent Control
Module Function Restriction
Due to Insufficient Voltage
Supply voltage < 9 V
U140F
Reducing Agent Control
Module Function restriction
due to excessive voltage
Supply voltage > 16 V
Fuel and Air Ratios Control Module
DTC
Error Message
Malfunction Criteria and
Threshold Value
P1103
ECM: Production Mode
P150A
Engine Off Timer Performance ECM time - IPC time > 12 Sec.
production mode = Active
Additional Emissions Regulations
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2564
Turbocharger Boost Control
Position Sensor Circuit Low
Sensor signal voltage < 0.15 V
P2565
Turbocharger Boost Control
Position Sensor Circuit High
Sensor signal voltage > 4.85 V
P261A
Coolant Pump "B" Control
Circuit/Open
• Open circuit Signal voltage
1.8 V
P268A
Fuel Injector Calibration Not
Accumulated / Programmed
Accumulated global release
time of zero fuel calibration
but disabled by rail pressure
deviation
P310E
Exhaust gas recirculation
cooler bypass valve 2
Implausible signal
Measured temperature < 0.8
350
Audi A6/S6 Quick Reference Specification Book
•
September 2013
Error Message
P3348
Turbocharger Control Module
Circuit Malfunction
Malfunction Criteria and
Threshold Value
• Diagnostic signal from power
stage > 8 - 18 A
or
• Diagnostic signal from power
stage > 5 V or < 3.4 V
DTC Chart
DTC
Audi A6/S6 Quick Reference Specification Book
•
September 2013
351
Audi of America reserves the right to change or update any part of this
technical manual at any time. No legal commitment can therefore be
derived from the information, illustrations or descriptions in this manual.
The texts, illustrations and standards in this manual are based on the
information available at the time of printing. No part of this manual may
be reprinted, reproduced or translated without the written permission of
Audi of America.
All rights under the copyright laws are expressly reserved by Audi of
America. Subject to alteration and amendment.
Printed in the United States
© 2013 Audi of America, Inc.
September 2013
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TSB/Document ID: Quick Reference
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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