NHTSA ID Number: 10214962
Manufacturer Communication Number: Quick Reference
TSB/Document Date: 2022-07-05
Summary
Audi
Quick Reference Specification Guide.
P2017
Intake Manifold Runner
Position Sensor Circuit High
Position sensor signal
≥ 4750 mV
P202A
Reducing Agent Tank Heater
Control Circuit/Open
Conductance @ start of heating
≤ 0.10 1/Ohm
Audi A6/S6 Quick Reference Specification Book
•
September 2013
331
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P202B
Reducing Agent Tank Heater
Control Circuit Low
Conductance @ start of heating
< 0.20 Ohm
P202C
Reducing Agent Tank Heater
Control Circuit High
Conductance @ start of heating
> 1 Ohm
P2020
Intake Manifold Runner
Position Sensor Circuit (Bank
2) Range/Performance
• Position sensor signal
< 3550 mV
• Position sensor signal
> 1450 mV
or
• Position sensor signal
> 550 mV and < 250 mV
or
• Position sensor signal
> 4450 mV and < 4750 mV
P2021
Intake Manifold Runner
Position Sensor Circuit (Bank
2) Low
Position sensor signal ≤ 250 mV
P2022
Intake Manifold Runner
Position Sensor Circuit (Bank
2) High
Position sensor signal
≥ 4750 mV
P203B
Reducing Agent Level Sensor
Circuit Range / Performance
• Signal voltage not equal full
level < 1.76 V or > 2.02 V
or
• Signal voltage not equal half
full level, 2.03 V or > 2.31 V
or
• Signal voltage not equal empty
level < 1.32 V or > 1.53 V
or
• Signal voltage not equal SCR
values < 0.25 V > 2.35 V
P203C
Reducing Agent Level Sensor
Circuit Open or Grounded
Signal Voltage < 0.1 V
P203D
Reducing Agent Level Sensor
Circuit Short to Battery
Voltage
Signal Voltage > 4.8 V
P2031
Exhaust Gas Temperature
Sensor 2 Circuit
Signal voltage > 2.61 V
P2032
Exhaust Gas Temperature
Sensor 2 Circuit Low
Signal voltage < 0.68 V
P204A
Reducing Agent Pressure
Sensor Circuit Open / Short
Ground
Signal voltage < 0.1 V
332
Audi A6/S6 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and
Threshold Value
P204B
Reducing Agent Pressure
Sensor Circuit Range /
Performance
Actual pressure reduction agent
delivery system > 50.00 kPa or
< 50.00 kPa
P204D
Reducing Agent Pressure
Sensor Circuit High
Signal voltage > 4.90 V
P2047
Reducing Agent Injection
Valve Circuit Open
Signal Voltage < 4.7 V
P2048
Reducing Agent Injection
Valve Circuit Grounded
• Signal Voltage < 2.97 V
or
• Signal Current > 1.6 A
P2049
Reducing Agent Injection
Valve Circuit Short to Battery
Voltage
• Signal Current > 1.8 A
or
• Analog measure < 200 mA
P205A
Reducing Agent Tank
Temperature Sensor Circuit
Short to Battery Voltage or
Open
Signal voltage > 4.63 V
P205B
Reducing Agent Tank
Temperature Sensor Circuit
Range/Performance
Case 1:
• AAT > 25 °C
• Difference between reducing
agent (AdBlue®) to ECT
< -30 °K
Case 2:
• AAT < 25 °C
• Difference between reducing
agent (AdBlue®) to ECT
< -30 °K
• Reducing agent temperature
increase while heating tank
< 1.5 K
• For time < 1500.0 s
P205C
Reducing Agent Tank
Temperature Sensor Circuit
Grounded
Signal voltage < 0.18 V
P207F
Reducing Agent Quality
Performance
Average efficiency > 2.50 [-]
P208A
Reducing Agent Pump Control
Circuit Open
Signal Voltage > 4.7 V
P208B
Reducing Agent Pump Does
Not Rotate At Expected
Speeds
• Rotation < 400 RPM
• > 5 Seconds
P208C
Reducing Agent Pump Control
Circuit Grounded
Signal Voltage < 2.74 V
Audi A6/S6 Quick Reference Specification Book
•
September 2013
333
DTC Chart
DTC
DTC
Error Message
P208D
Reducing Agent Pump Control
Circuit High
Signal Current > 4.0 A
P208E
Reducing Agent Injection
Valve Stuck Closed (Bank 1
Unit 1)
Missing number of signal peaks
> 200
P2080
Exhaust Gas Temperature
Sensor Circuit Range/
Performance
• Temperature difference to
temp EGR T3, T4, T5, T6
> 40 °K
or
• Mean value of modeled to
measured T4 > 100 °K
P2084
Exhaust Gas Temperature
Sensor 2 Circuit Range/
Performance
• Temperature difference to
temp EGR T3, T4, T5, T6 >
40 °K
or
• Mean value of modeled to
measured T3 > 100 °K
P20BB
Reducing Agent Tank Heater
Control Circuit Shorted to
Ground
Diagnostic signal from power
stage > 14A
P20BC
Reducing Agent Tank Heater
Control Circuit Shorted to
Battery Voltage
Diagnostic signal from power
stage > 1 A
P20BD
Reducing Agent Heater 2
Control Circuit/Open
Diagnostic signal from power
stage < 1 A
P20BF
Reducing Agent Heater 2
Control Circuit/Low
Diagnostic signal from power
stage < 14 A
P20B5
Reducing Agent Metering Unit
Heater Control Circuit/Open
Conductance during heating
≤ 0.10 1/Ohm
P20B7
Reducing Agent Metering Unit
Heater Control Circuit Low
Conductance @ start heating
< 0.30 1/Ohm
P20B8
Reducing Agent Metering Unit
Heater Control Circuit High
Conductance @ start heating
> 1.00 1/Ohm
P20B9
Reducing Agent Tank Heater
Control Circuit Open
Diagnostic signal from power
stage < 1A
P20C0
Reducing Agent Heater 2
Control Circuit High
Diagnostic signal from power
stage < 1 A
P20EE
SCR NOx Catalyst Efficiency
Below Threshold
Difference between calculated
and measured efficiency < 0.4[-]
334
Malfunction Criteria and
Threshold Value
Audi A6/S6 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and
Threshold Value
P20E8
Reducing Agent Pressure Too
Low / Functional check
• Actual pressure < 300.00 kPa
for 55 s
or
• Actual pressure < 350.00 kPa
for 60 s
or
• Pressure built up for 21.00[-]
Attempts > 450 kPa
P20FE
Reducing Agent Quality
Performance
Average Efficiency > 2.50 [-]
P20E9
Reducing Agent Pressure Too
High
• Actual pressure > 790.00 kPa
for 0.0 s
or
• Actual pressure > 650.00 kPa
for 10 s
or
• Pressure @ Dosing end
> 50 kPa
P20FF
Reducing Agent Metering
Internal fault
System Control Module -J880Detects Internal Hardware
Defects
P20F4
Reducing Agent Consumption
Too High
SCR adaptive value ≥ 2.50
P20F5
Reducing Agent Consumption
Too Low
SCR adaptive value ≤ 0.51
P21CA
Reducing Agent Metering
Sensor supply voltage < 1 V
System Control Module -J880Detects Short Circuit of Heater
Supply Voltage to B+
P21CC
Reducing Agent Metering
System Control Module
-J880- Detects Short Circuit
Of Heater Supply Voltage to
Ground
Sensor supply voltage > 7 V
P21C7
Reducing Agent Metering
System Control Module
-J880- Detects Short Circuit to
Ground on Main Relay
Supply voltage during activation
>7V
P21C9
Reducing Agent Metering
Supply voltage during activation
System Control Module -J880- < 1 V
Detects Short Circuit to B+ on
Main Relay
Audi A6/S6 Quick Reference Specification Book
•
September 2013
DTC Chart
DTC
335
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2100
Throttle Actuator Control
Motor Circuit/Open
Signal from power stage
> 3.26 V and < 5.40 V
P2101
Throttle Actuator Control
Motor Circuit Range/
Performance
Signal = no change
P2102
Throttle Actuator Control
Motor Circuit Low
Signal from power stage
≤ 3.26 V
P2103
Throttle Actuator Control
Motor Circuit High
Signal from power stage
> 1.50 V and > 50 mA
P2122
Pedal Position Sensor D
Circuit Low Input
Signal voltage < 0.646 V
P2123
Pedal Position Sensor D
Circuit High Input
Signal voltage > 4.889 V
P2127
Pedal Position Sensor E
Circuit Low Input
Signal voltage < 0.276 V
P2128
Pedal Position Sensor E
Circuit High Input
Signal voltage > 2.644 V
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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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