NHTSA ID Number: 10205700
Manufacturer Communication Number: Guide
TSB/Document Date: 2021-12-27
Summary
Quick reference specification book.
Vehicle speed < 2.00 MPH
P0502
Vehicle Speed Sensor "A"
Circuit Low
• Sensor signal failure
or
• Speed sensor signal: electrical
error
P0506
Idle Control System RPM Lower Than Expected
Difference between target and
measured idle engine speed
< 10.0%
P0507
Idle Control System RPM Higher Than Expected
Difference between target and
measured idle engine speed
> 10.0%
P050A
Cold Start Idle Control System
Performance
Idle speed control deviation
more than 10% under or 10%
above desired idle speed
P050E
Cold Start Engine Exhaust
Temperature Too Low
• Calculated SCR-temperature
< 150.0 to 200.0 °C
• Modeled heat quantity
≥ 120.0 to 200.0 kJ
P052F
Glow Plug Control Module 1
System Voltage
Voltage supply via LIN message
= 0.00 V
P0544
Exhaust Gas Temperature
Sensor Circuit Bank 1 Sensor
1
Signal voltage > 2.61 V
P0545
Exhaust Gas Temperature
Sensor Circuit Low Bank 1
Sensor 1
Signal voltage < 0.68 V
P054E
Idle Control System - Fuel
Quantity Lower Than
Expected
Expected fuel quantity vs. actual
fuel quantity < 0.004 g/rev.
P054F
Idle Control System - Fuel
Quantity Higher Than
Expected
Expected fuel quantity vs. actual
fuel quantity > 0.018 to 0.033 g/
rev
Audi
Q7 Quick Reference Specification Book
•
September 2013
151
DTC Chart
DTC
Control Module and Output Signals
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0604
Internal Control Module
Random Access Memory
(RAM) Error
EEPROM error
P0605
Internal Control Module Read
Only Memory (ROM) Error
Internal self test failed
P0606
Control Module Processor
• Number of camshaft
revolutions with irregular Pol 1
shut offs > 10.00
• Number of camshaft
revolutions with irregular Pol 2
shut offs > 10.00
P0607
Control Module Performance
• Supply voltage for IC < 9.00 V
Communication check
• Internal check failed
Signal range check
• Oxygen sensor adaption value
is either > 0.20 or < -0.20 V
Short to ground
• Sensor voltage < 0.94 V
Short to battery / open circuit
• Sensor voltage > 4.76 V
P0634
Control Module Internal
Temperature "A" Too High
Power stage temperature
> 150.0 °C
P0638
hrottle Actuator Control
Range/Performance Bank 1
Diagnostic signal = low state
P0641
Sensor Reference Voltage "A"
Circuit/Open
Signal voltage deviation
> +/- 0.30 V
P064C
Glow Plug Control Module 1
Message from glow plug control
module incorrect
P0651
Sensor Reference Voltage "B"
Circuit/Open
Signal voltage deviation
> +/- 0.30 V
P066A
Cylinder 1 Glow Plug Control
Circuit Low
Glow current ≥ 70.0 A
P066B
Cylinder 1 Glow Plug Control
Circuit High
Message from glow plug control
module incorrect
P066C
Cylinder 2 Glow Plug Control
Circuit Low
Glow current ≥ 70.0 A
P066D
Cylinder 2 Glow Plug Control
Circuit High
Message from glow plug control
module incorrect
P066E
Cylinder 3 Glow Plug Control
Circuit Low
Glow current ≥ 70.0 A
152
Audi Q7 Quick Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
Cylinder 3 Glow Plug Control
Circuit High
Message from glow plug control
module incorrect
P0671
Cylinder 1 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P0672
Cylinder 2 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P0673
Cylinder 3 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P0674
Cylinder 4 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P0675
Cylinder 5 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P0676
Cylinder 6 Glow Plug Circuit/
Open
Glow current ≤ 2.20 A
P067A
Cylinder 4 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067B
Cylinder 4 Glow Plug Control
Circuit High
Message from Glow Plug
Control Module incorrect
P067C
Cylinder 5 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067D
Cylinder 5 Glow Plug Control
Circuit High
Message from Glow Plug
Control Module incorrect
P067E
Cylinder 6 Glow Plug Control
Circuit Low
Glow current ≥ 70 A
P067F
Cylinder 6 Glow Plug Control
Circuit High
Message from Glow Plug
Control Module incorrect
P0683
Glow Plug Control Module 1 to LIN message no feedback
PCM Communication Circuit
P0697
Sensor Reference Voltage "C"
Circuit/Open
Signal voltage deviation
> +/- 0.30 V
P06B0
Sensor Power Supply "A"
Circuit/Open
Sensor supply voltage < 2.00 to
> 5.30 V
P06B9
Cylinder 1 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
Audi Q7 Quick Reference Specification Book
•
September 2013
DTC Chart
P066F
153
DTC
Error Message
Malfunction Criteria and
Threshold Value
P06BA
Cylinder 2 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
P06BB
Cylinder 3 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
P06BC
Cylinder 4 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
P06BD
Cylinder 5 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
P06BE
Cylinder 6 Glow Plug Circuit
Range/Performance
• Glow plug resistance (between
4 - 9 Sec.) < 0.3 ohm
• Glow plug resistance (between
9 - 14 Sec.) < 0.4 ohm
• Glow plug resistance (after 14
Sec.) < 0.5 ohm
• Glow plug resistance anytime
> 1.2 ohm
P06C5
Cylinder 1 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
P06C6
Cylinder 2 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
154
Audi Q7 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and
Threshold Value
P06C7
Cylinder 3 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
P06C8
Cylinder 4 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
P06C9
Cylinder 5 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
P06CA
Cylinder 6 Glow Plug Incorrect Internal resistance < 0.11 and >
1.15 Ω
P06E5
Glow Plug Control Module 1
Performance
Ground offset >= 1.76 V or
≤ -1.76 V
P06FE
Cold Start Diesel Intake Air
Flow Control Performance
Signal low
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.
U0101
Lost Communication with TCM No TCM messages received.
U0106
Lost Communication with
Glow Plug Control Module
No message received
U0121
Lost Communication with AntiLock Brake System (ABS)
Control Module
No CAN messages received
from ABS module
U0140
Lost Communication with
Body Control Module
No CAN messages from BCM
U0146
Lost Communication with
Gateway “A”
CAN messages from Gateway
= no message.
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TSB/Document ID: Guide
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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