NHTSA ID Number: 10214962
Manufacturer Communication Number: Quick Reference
TSB/Document Date: 2022-07-05
Summary
Audi
Quick Reference Specification Guide.
Absolute value of maximum
deviation between predicted and
real value: > 8%
P10A5
RFP Sensor, Short to B +
Signal voltage > 4.9 V
P10A6
RFP sensor, Short to Ground /
Open Circuit
Signal voltage < 0.1 V
P100F
Functional Check Stuck Open
• Rail pressure controller value >
60.00 - 327.67 mm³
• Misfire failure
P1114
Internal Resistance Too Large
(Bank 1, Sensor 2)
Heater resistance, (128-648)*(840) 1.02-25.9 k Ω (dep. on
mod. exhaust temp. and heater
power)
P12A1
Fuel Rail Pressure Sensor
Inappropriately Low
• Rail Pressure Bank 1 @
Engine Start < 0.10 mPa
• Fuel system too rich @ part
load ≤ -15.00%
• Fuel system too rich @ idle ≤
3.00%
• Fuel pressure bank 2 @
engine start ≥ 0.50 mPa
310
Audi
A6/S6 Quick Reference Specification Book
•
September 2013
Error Message
Malfunction Criteria and
Threshold Value
P12A2
Fuel Rail Pressure Sensor
Inappropriately High
• Rail pressure bank 1 @ engine
start > 1.50 mPa
• Fuel system too lean @ part
load ≥ -15.00%
• Fuel system too lean @ idle
≥ 3.%
• Fuel pressure bank 2 @
engine start ≤ 1.00 mPa
P12A4
Fuel Rail Pump Control Valve
Stuck Closed
• Pressure control activity < -3.0
• Fuel trim activity 0.90 - 1.30
mPa
and
• Difference between target
pressure vs. actual pressure
< -8.00 mPa
P129B
Fuel Rail Pressure Control
Valve
• Open circuit signal voltage
1.40 - 3.20 V
• Rationality check signal pattern
incorrect
P129C
Fuel Rail Pressure Control
Valve
Signal voltage 1.40 - 3.20 V
P129D
Fuel Rail Pressure Control
Valve
Short to battery plus signal
voltage > 3.20 V
P13EA Ignition Timing Monitor
Difference between commanded
spark timing and actual value
> 0.60%
P150A
Engine Off Time Performance
• Difference between engine off
time and ECM after run time
< -12.0 Sec.
• Difference between engine off
time and ECM after run time
> 12.0 Sec.
P2101
Throttle Actuator A Control
Motor Circuit Range/
Performance
Signal range check
• Duty cycle >80%
and
• ECM power stage, no failure
Rationality check
• Deviation throttle valve angles
vs. calculated value 4.0 50.0%
Audi
A6/S6 Quick Reference Specification Book
•
September 2013
311
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2106
Throttle Actuator Control
System - Short to B+ or
Ground
Short to battery plus/ short to
ground
• Internal check failed
Open circuit
• Internal check failed
Temperature / current
monitoring
• Internal check failed
Functional check
• Internal check failed
P2119
Throttle Actuator Control
Range/Performance (Bank 1)
• TPS 1 signal voltage NOT
(0.21 - 0.87) V
or
• TPS 2 signal voltage NOT
(4.14 - 4.84) V
P2122
Throttle/Pedal Position
Sensor/Switch D Circuit Low
Input
Signal voltage < 0.65 V
P2123
Throttle/Pedal Position
Sensor/Switch D Circuit High
Input
Signal voltage > 4.79 V
P2127
Throttle/Pedal Position
Sensor/Switch E Circuit Low
Input
Signal voltage < 0.28 V
P2128
Throttle/Pedal Position
Sensor/Switch E Circuit High
Input
Signal voltage > 2.43 V
P2138
Throttle/Pedal Position
Sensor/Switch D/E Voltage
Correlation
Signal voltage sensor 1 vs. 2
> 0.14 - 0.70 V
P2146
Fuel Injector Group A Supply
Voltage Circuit / Short to
Ground
Short to ground (high side)
• Signal current > 14.90 A
Short to battery plus (high side)
• Signal current < 2.60 A
P2147
Injector Circuit Short to
Ground
Signal current > 12 A
P2148
Injector Circuit Short to B+
Signal current > 33 A
P2149
Fuel Injector Group B Supply
Voltage Circuit/Open
Short to ground (high side)
• Signal current > 14.90 A
Short to battery plus (high side)
• Signal current < 2.60 A
P2150
Injector Circuit short to ground
Signal current > 12 A
P2151
Injector Circuit short to b+
Signal current > 33 A
312
Audi
A6/S6 Quick Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
Fuel Injector Group B Supply
Voltage Circuit / Short to
ground
Short to ground (high side)
• Signal current, > 14.90 A
Short to battery plus (high side)
• Signal current < 2.60 A
P2153
Injector Circuit Short to
Ground
Signal current > 12 A
P2154
Injector Circuit Short to B+
Signal current > 33 A
P2155
Fuel Injector Group B Supply
Voltage Circuit / Short to
Ground
Short to ground (high side)
• Signal current, > 14.90 A
Short to battery plus (high side)
• Signal current < 2.60 A
P2181
Cooling System Performance
Cooling system temperature to
low after a sufficient air mass
flow interval < 60 - 75°C
P2195
O2 Sensor Rationality Check
High (Bank 1, Bank 2)
Delta lambda of 2nd lambda
control loop > 0.07
P2196
O2 Sensor Rationality Check
Low (Bank 1, Sensor 1)
Delta lambda of 2nd lambda
control loop < 0.07
P2197
O2 Sensor Rationality Check
High (Bank 1, Bank 2)
Delta lambda of 2nd lambda
control loop > 0.070
P2198
O2 Sensor rationality check
Low- Bank 1, Bank 2
Delta lambda of 2nd lambda
control loop < 0.070
P2227
Turbocharger/Supercharger
Boost Sensor A Plausibility
Check
Pressure difference in cross
check between boost pressure
sensor 1/2; IM pressure,
ambient pressure >7 kPa
P2231
O2 Sensor Signal Circuit
Shorted to Heater Circuit
• Delta O2S signal front
> 0.2 - 0.498 V
• Elapsed time since last O2S
< 0.05 Sec
P2234
O2 Sensor Signal Circuit
Shorted to Heater Circuit
• Delta O2S signal front
> 0.2 - 0.498 V
• Elapsed time since last O2S
< 0.05 Sec
P2237
O2 Sensor Positive Current
Control Circuit/Open (Bank 1,
Sensor 1)
• O2S signal front 1.46 - 1.52 V
and
• Delta lambda controller
> | 0.10 |
P2240
O2 Sensor Positive Current
Control Circuit / Open (Bank
1, Bank 2)
• O2S signal front 1.46 - 1.52 V
and
• Delta lambda controller
> | 0.10 |
Audi
A6/S6 Quick Reference Specification Book
•
September 2013
DTC Chart
P2152
313
DTC
Error Message
P2243
O2 Sensor Reference Voltage
Circuit/Open (Bank 1,
Sensor 1)
• O2S signal front < 0.30 V and
internal resistance
> 950 Ohms
• O2S signal front > 0.20 V and
Internal resistance
> 950 Ohms
P2247
O2 Sensor Nernst Voltage
Open - Bank 1, Bank 2
• O2S signal front > 3.25 V
and
• Internal resistance > 950Ω
• O2S signal front < 0.20 V
and
• Internal resistance > 950Ω
P2251
O2 Sensor Signal Open
Circuit (Bank 1, Bank 2)
• O2S signal front 1.44 - 1.53 V
and
• Internal resistance > 950 Ω
P2254
O2 Sensor Signal Open
Circuit (Bank 1, Sensor 1)
• O2S signal front 1.44 - 1.53 V
and
• Internal resistance > 950 Ω
P2257
Air Pump Relay Short to
Ground
Signal voltage 0.00 - 3.26 V
P2258
Air Pump Relay Short to B+
Signal current 0.60 - 2.40 A
P2270
O2 Circuit Slow Response
(Bank 1, Sensor 2) SULEV
• O2S signal rear not oscillating
at reference < 0.62 - 0.68 V
and
• Enrichment after stuck lean
25.00%
P2271
O2 Circuit (Bank 1, Sensor 2)
• Sensor voltage of ≥ 0.18 V
• After oxygen mass
> 3300 - 400 mg
• (after fuel cut off) and number
of checks ≥1.0
P2272
O2 Circuit Slow Response
(Bank 1, Sensor 2)
• O2S signal rear not oscillating
at reference <
and
• Enrichment after stuck lean
25.00%
P2273
O2 Circuit Slow Response
(Bank 1, Sensor 2)
• Sensor voltage of ≥ 0.18 V
• After oxygen mass
> 3300 - 400 mg
• (after fuel cut off) and number
of checks ≥1.0
314
Malfunction Criteria and
Threshold Value
Audi
A6/S6 Quick Reference Specification Book
•
September 2013
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2279
Intake Air System Leak
• Offset value throttle mass flow
> 17.00 kg/h
and
• Correction factor > 0.97
P2293
Fuel Pressure Regulator 2
Performance
• Difference between target
pressure - actual pressure >
1.30 mPa
P2294
Fuel Pressure Regulator 2
Control Circuit Open Circuit
Open circuit
• Signal voltage 1.40 - 3.20 V
Rationality check
• Signal pattern incorrect
P2295
Fuel Pressure Regulator 2
Control Circuit Low Short to
Ground
Signal voltage < 1.40 - 3.20 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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