NHTSA ID Number: 10203512
Manufacturer Communication Number: QRSB Audi
A8 A8L
TSB/Document Date: 2021-11-15
Summary
Quick reference specification book.
• Signal Current = 3.74 - 6.8 A
P11C3
Camshaft Actuator Outlet
"A" Cylinder 3 Range/
Performance
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 3.74 - 6.8 A
P11C4
Camshaft Actuator Outlet "B"
Cylinder 3 Circuit/Open
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 3.74 - 6.8 A
P11C7
Camshaft Actuator Outlet
"A" Cylinder 5 Range/
Performance
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 3.74 - 6.8 A
P11C8
Camshaft Actuator Outlet "B"
Cylinder 5 Circuit/Open
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 3.74 - 6.8 A
P11CD Camshaft Actuator Outlet
"A" Cylinder 8 Range/
Performance
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 5.5 - 10.0 A
P11CE Camshaft Actuator Outlet "B"
Cylinder 8 Circuit/Open
• Signal Voltage = 4.8 - 5.3 V
or
• Signal Current = 5.5 - 10.0 A
P11D1
Camshaft Actuator
"A" Cylinder 8 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11D2
Camshaft Actuator
"B" Cylinder 8 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 273
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P11D5
Camshaft Actuator Outlet
"A" Cylinder 2 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11D6
Camshaft Actuator Outlet
"B" Cylinder 2 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11D7
Camshaft Actuator Outlet
"A" Cylinder 3 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11D8
Camshaft Actuator Outlet
"B" Cylinder 3 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11DB Camshaft Actuator Outlet
"A" Cylinder 5 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11DC Camshaft Actuator Outlet
"B" Cylinder 5 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
274 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P11E1
Camshaft Actuator Outlet
"A" Cylinder 8 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
P11E2
Camshaft Actuator Outlet
"B" Cylinder 8 Range/
Performance
• Difference of feedback signal
vs. battery voltage < 1.00 [V]
and
• Correction switch (selfcontained switching in
opposite lift) = successful or
fail
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%
• Rail pressure bank 2 @ engine
start ≥ 0.50 mPa
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%
• Rail 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
P12A5
Fuel Rail Pressure Bank 2
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%
• Rail pressure bank 2 @ engine
start ≥ 0.50 mPa
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 275
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P12A6
Fuel Rail Pressure Sensor
Bank 2 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.%
• Rail pressure bank 2 @ engine
start ≤ 1.00 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
P1321
Knock Sensor 3 Signal Too
Low
Lower threshold, 0.18 V
P1322
Knock Sensor 3 Signal Too
High
Upper threshold >1.00 V
P1323
Knock Sensor 4 Signal Too
Low
Lower threshold, 0.18 V
P1324
Knock Sensor 3 Signal Too
High
Upper threshold >1.00 V
P13EA Ignition Timing Monitor
Difference between commanded
spark timing vs. actual value
> 10.00% - 19.00%
P150A
Engine Off Time
• 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.
P166F
Partial Engine Operation
Deactivated
Ignition On
P169A
Loading Mode Active
-
276 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
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%
P2106
Throttle Actuator Control
System - Forced Limited
Power
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
Throttle Body 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
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 277
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2148
Injector Circuit short to B+
Signal current > 33 A
P2149
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
P2150
Injector Circuit Short to
Ground
Signal current > 12 A
P2151
Injector Circuit Short to b+
Signal current > 33 A
P2152
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
P2184
Engine Coolant Temperature
Sensor 2 Circuit Low
Signal voltage < 0.22 V
P2185
Engine Coolant Temperature
Sensor 2 Circuit High
Signal voltage > 4.88 V
P2195
O2 Sensor Signal Stuck Lean
Bank 1 Sensor 1
Delta lambda of 2nd lambda
control loop > 0.070
P2196
O2 Sensor Signal Stuck Rich
Bank 1 Sensor 1
Delta lambda of 2nd lambda
control loop < 0.070
P2197
O2 Sensor Signal Stuck Lean
Bank 2 Sensor 1
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: QRSB Audi A8 A8L
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:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.