NHTSA ID Number: 10122812
Manufacturer Communication Number: Quick Ref Spec B
TSB/Document Date: 2017-11-08
Summary
This document contains the quick reference specification book.
Audi
A3 Quick Reference Specification Book
•
October 2012
DTC Chart
DTC
155
Additional Exhaust Regulation
DTC
Error Message
Malfunction Criteria and
Threshold Value
P0410
System Check After SAI PZEV Deviation SAI pressure
only
> 20.0 hPa
P0413
Open Circuit PZEV only
Signal voltage 9.25 - 11.25 V
P0414
Short to Ground PZEV only
Signal voltage < 6.00 V
P0415
Short to B+ PZEV only
Signal current 2.20 - 4.20 A
P0418
Air Pump Relay Open Circuit
PZEV only
Signal voltage 4.50 - 5.50 V
P0420
Catalyst System (front)
Efficiency Below Threshold
(Bank 1) PZEV only
• Measured OSC / OSC of
borderline catalyst value for
front catalyst, < 0.40
or
• Value for front catalyst, < 1.30
and
• Value for main catalyst, 4.40 - 5.40 V
P0455
Evaporative Emission System
Leak Detected (Gross Leak/
No Flow)
Time for pressure drop
< 0.95 Sec.
P0456
Evaporative Emission System
Leak Detected (Very Small
Leak)
Time for pressure drop
< 4.5 - 6.0 Sec.
156
Audi A3 Quick Reference Specification Book
•
October 2012
DTC
Error Message
Malfunction Criteria and
Threshold Value
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 > 2.20 A
P0491
Secondary Air System
Insufficient Flow. Flow Check
During Catalyst Heating.
PZEV Only
SAI pressure measured with SAI
pressure sensor vs modeled
< 0.6 (0.62) %
Speed and Idle Control
DTC
Error Message
Malfunction Criteria and
Threshold Value
Vehicle Speed Sensor A
Range/Performance
VSS signal < 4 km/h
P0501
Vehicle Speed Sensor A
Range/Performance Only
ULEV
VSS signal < 4 km/h
P0503
Vehicle Speed Sensor A Out
of Range High
Vehicle speed > 200 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
DTC Chart
P0501
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
P0604
Internal Control Module
Random Access Memory
(RAM) Error
Write ability check, failed
P0605
Internal Control Module Read
Only Memory (ROM) Error
Checksum incorrect
P0606
ECM Processor
Powerup calibration
• EEPROM check, failed
A/D channel conversion
• Check failed
Audi A3 Quick Reference Specification Book
•
October 2012
157
DTC
Error Message
Malfunction Criteria and
Threshold Value
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)
Rationality check:
• Time to close to reference
point > 0.56 Sec.
and
• Reference point 2.88%
Signal range check
• Duty cycle >80%
and
• ECM power stage, no failure
P0641
Sensor Reference Voltage A
Circuit/Open
Signal voltage deviation
> ± 0.3 V
P0642
Sensor Reference Voltage A
Circuit Low
Signal voltage < 4.6 - 5.0 V
P0643
Sensor Reference Voltage A
Circuit High
5V supply voltage > 4.99 5.41 V
P0651
Sensor Reference Voltage B
Circuit/Open
Signal voltage deviation ± 0.3 V
P0652
Sensor Reference Voltage B
Circuit Low
Signal voltage < 4.6 - 5.0 V
P0653
Sensor Reference Voltage B
Circuit High
5V supply voltage > 4.99 5.41 V
P0657
Actuator Supply Voltage A
Circuit/Open
Signal voltage > 4.40 - 5.60 V
P0658
Actuator Supply Voltage A
Circuit Low
Signal voltage < 2.15 - 3.25 V
P0659
Actuator Supply Voltage A
Circuit High
Signal current > 1.10 A
P0685
ECM/PCM Power Relay
Control Circuit/Open
• Signal voltage 2.6 - 3.7 V
• Sense circuit voltage > 6 V
P0686
ECM/PCM Power Relay
Control Circuit Low
• Signal voltage 2.6 - 3.7 V
• Sense circuit voltage > 6 V
P0687
ECM/PCM Power Relay
Control Circuit High
• Signal current > 1.4 - 0.7 A
• Sense circuit voltage < 6 V
158
Audi A3 Quick Reference Specification Book
•
October 2012
Error Message
Malfunction Criteria and
Threshold Value
P0688
ECM/PCM Power Relay
Sense Circuit
• Sense voltage < 3.0 V
• Difference sense circuit
voltage with camshaft actuator
commanded off and on > 2.5 V
• Battery voltage > 3 V
P0697
Sensor Reference Voltage C
Circuit/Open
Signal voltage deviation ± 0.3 V
P0698
Sensor Reference Voltage C
Circuit Low
Signal voltage < 4.6 - 5.0 V
P0699
Sensor Reference Voltage C
Circuit High
5V supply voltage > 4.99 5.41 V
U0001
High Speed CAN
Communication Bus
CAN message, no feedback
U0002
High Speed CAN
Communication Bus
Global time out
U0100
Lost Communication with
ECM/PCM A
• Failure of all CAN engine
messages, time out
> 490 mSec.
• Failure of all CAN engine
messages, but not all CAN
messages, time out
> 1010 mSec.
U0101
Lost Communication with TCM • Checksum check Failed
Message counter check failed
• Time out check No message
received by ECM
U0121
CAN communication with brake
unit, time-out
U0146
CAN Gateway A
CAN communication with
gateway, time out
U0302
Software Incompatibility with
Transmission Control Module
AT vehicle ECM coded as MT
vehicle
U0323
CAN: Instrument cluster Audi
only
Ambient temperature value
module not encoded for ambient
temp sensor, 00h
U0402
CAN Communication with
TCM
Data length code transmitted,
incorrect
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
Audi A3 Quick Reference Specification Book
•
October 2012
159
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
U0415
CAN Link to Speed Sensor
Speed sensor initialization
failure
U0422
CAN: Instrument Cluster
Ambient temperature value
initialization, Audi 01 h
U0447
CAN Gateway
CAN message incorrect
U1030
LIN Communication
Not active
U102F
LIN Communication
Time out
U102E
LIN Communication
LIN message, incorrect
Fuel and Air Ratios Control Module
DTC
Error Message
Malfunction Criteria and
Threshold Value
P1114
Internal Resistance Too Large
(Bank 1, Sensor 2)
Heater resistance, (128-648)*(840) 1.02-25.9 k Ω (dep. on mod.
exhaust temperature and heater
power)
P12A1
Fuel Rail Pressure Sensor
Inappropriately Low
• Pressure control activity
> 0.25 MPa
and
• Fuel trim activity < 0.80
and
• Difference between target
pressure vs. actual pressure,
-16.38 - 16.38 mPa
P12A2
Fuel Rail Pressure Sensor
Inappropriately High
• Pressure control activity,
< 0.05 mPa
and
• Fuel trim activity < 0.85
and
• Difference between target
pressure vs. actual pressure,
-16.38...16.38 mPa
P12A4
Fuel Rail Pump Control Valve
Stuck Closed
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TSB/Document ID: Quick Ref Spec B
Replacement Service Bulletin Number:
MFR Communication Date: 2012-11-01
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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