NHTSA ID Number: 10203512
Manufacturer Communication Number: QRSB Audi
A8 A8L
TSB/Document Date: 2021-11-15
Summary
Quick reference specification book.
Injection Valves - Low Side
Cylinder #5
Signal current < 2.10 A
P0274
Injection Valves - High Side
Cylinder #5
Short to battery plus (low side)
• Signal current > 14.70 A
P0276
Injection Valves - Low Side
Cylinder #6
Signal current < 2.10 A
P0277
Injection Valves - High Side
Cylinder #6
Short to battery plus (low side)
• Signal current > 14.70 A
P0279
Injection Valves - Low Side
Cylinder #7
Signal current < 2.10 A
P0280
Injection Valves - High Side
Cylinder #7
Short to battery plus (low side)
• Signal current > 14.70 A
P0282
Injection Valves - Low Side
Cylinder #8
Signal current < 2.10 A
298 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P0283
Injection Valves - High Side
Cylinder #8
Short to battery plus (low side)
• Signal current > 14.70 A
P0285
Injection Valves - Low Side
Cylinder #9
Signal current < 2.10 A
P0286
Injection Valves - High Side
Cylinder #9
Short to battery plus (low side)
• Signal current > 14.70 A
P0288
Injection Valves - Low Side
Cylinder #10
Signal current < 2.10 A
P0289
Injection Valves - High Side
Cylinder #10
Short to battery plus (low side)
• Signal current > 14.70 A
P0291
Injection Valves - Low Side
Cylinder #11
Signal current < 2.10 A
P0292
Injection Valves - High Side
Cylinder #11
Short to battery plus (low side)
• Signal current > 14.70 A
P0294
Injection Valves - Low Side
Cylinder #12
Signal current < 2.10 A
P0295
Injection Valves - High Side
Cylinder #12
Short to battery plus (low side)
• Signal current > 14.70 A
P010B
Mass or Volume Air Flow "B"
Circuit Range/Performance
• Mass air flow HFM2 vs. lower
threshold map HFM2 < 0 450 kg/h
• Mass air flow HFM2 vs. upper
threshold map > 55 - 1082
P010C
Mass or Volume Air Flow "B"
Circuit Low Input
PWM time length < 40 mSec
P010D
PWM time length > 65 mSec
P010E
PWM time length 0 uSec
P018A
Fuel Pressure Sensor "B"
Circuit
Signal voltage > 4.80 V
P018B
Fuel Rail Pressure Sensor
Rail pressure > 13.5 mPa
P018C
Fuel Pressure Sensor "B"
Circuit Low
Signal voltage < 0.20 V
P025A
Fuel Pump Module Control
Open circuit
Signal voltage > 4.8 to 5.3 V
P025C
Fuel Pump short to ground
Signal voltage < 2.7 to 3.25 V
P025D
Fuel Pump short to B+
Signal current > 0.6 A
P2026
Evaporative Emissions
(EVAP) Fuel Vapor
Temperature Sensor Circuit
Low Voltage
Signal voltage 0.0 - 3.25 V
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 299
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P2027
Evaporative Emissions
(EVAP) Fuel Vapor
Temperature Sensor Circuit
High Voltage
• Signal current > 2.20 A
P2088
A Camshaft Position Actuator
Control Circuit Low Bank 1
Short to ground
• Signal voltage 0.0 - 3.25
P2089
A Camshaft Position Actuator
Control Circuit High Bank 1
Short to battery plus
• Signal current > 2.2 A
P2090
B Camshaft Position Actuator
Control Circuit(Bank1) Low
Short to ground
• Signal voltage 0.0 - 3.25
P2091
B Camshaft Position Actuator
Control Circuit High (Bank 1)
Short to battery plus
• Signal current > 2.20 A
P2092
A Camshaft Position Actuator
Control Circuit (Bank 2) Low
Short to ground
• Signal voltage 0.0 - 3.25
P2093
A Camshaft Position Actuator
Control Circuit (Bank 2) High
Short to battery plus
• Signal current > 2.20 A
P2094
B Camshaft Position Actuator
Control Circuit (Bank 2) Low
Short to ground
• Signal voltage 0.0 - 3.25
P2095
B Camshaft Position Actuator
Control Circuit (Bank 2) High
Short to battery plus
• Signal current > 2.20 A
P2096
Post Catalyst Fuel Trim
System Bank 1 Too Lean
I-portion of 2nd lambda control
loop < -0.045
P2097
Post Catalyst Fuel Trim
System Bank 1 Too Rich
I-portion of 2nd lambda control
loop > -0.045
P2098
Post Catalyst Fuel Trim
System Bank 2 Too Lean
I-portion of 2nd lambda control
loop < -0.045
P2099
Post Catalyst Fuel Trim
System Bank2 Too Rich
I-portion of 2nd lambda control
loop > -0.045
P3025
Angle Sensor 1 (on throttle
drive 2 power accelerator
actuation)
• TPS 1-TPS 2, > 6.3%
• TPS 2 - calc value > TPS 1
calc. value
or
• TPS 2 calc. value, > 9%
P3026
Angle Sensor 1 (on throttle
drive 2 power accelerator
actuation)
Signal voltage < 0.20 V
P3027
Angle Sensor 1 (on throttle
drive 2 power accelerator
actuation)
Signal voltage, > 4.81V
300 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P3028
Angle Sensor 2 (on throttle
drive 2 power accelerator
actuation)
• TPS 1-TPS 2, > 6.3%
• TPS 2 - calc value > TPS 1
calc. value
or
• TPS 2 calc. value, > 9%
P3029
Angle Sensor 2 (on throttle
drive 2 power accelerator
actuation)
Signal voltage, < 0.20 V
P3030
Angle Sensor 2 (on throttle
drive 2 power accelerator
actuation)
Signal voltage, > 4.81 V
P3031
Throttle Drive 2 (power
accelerator actuation)
Electrical Malfunction in
Circuit
Internal check Failed
P3032
Throttle Actuator Basic Setting
Bank 1 Bank 2
• TPS 1 signal voltage < 0.21 or
> 0.87 V
• TPS 2 signal voltage < 4.14 or
> 4.84 V
P3035
Throttle Valve Control Module
2 Mechanical malfunction
• Time to open over reference
point + 12%, > 0.14 Sec.
• Time to close below reference
point, + 3%, > 0.56 Sec.
• Time to close below reference
point + 3% > 0.56 Sec.
P3081
Engine Temperature Too Low
Difference reference model
temperature vs. ECT > 9.8 K
P3144
Exhaust-Bank 3, Sensor
1, Oxygen Sensor Signal
Implausible Lean
Delta lambda of 2nd lambda
control loop > 0.070
P3145
Exhaust-Bank 3, Sensor
1, Oxygen Sensor Signal
Implausible Rich
Delta lambda of 2nd lambda
control loop < -0.070
P3146
Exhaust-Bank 4, Sensor1,
Oxygen Sensor Signal
Implausible Lean
Delta lambda of 2nd lambda
control loop > 0.070
P3147
Exhaust-Bank 4, Sensor
1, Oxygen Sensor Signal
Implausible Rich
Delta lambda of 2nd lambda
control loop < -0.070
P3148
Exhaust Bank 3, O2 Sensor
Before Cat. Conv., Heater
Circuit Regulation at Upper
Limit
• O2S ceramic temp. < 725 °C
and
• Heater duty cycle > 90.00%
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013 301
DTC Chart
DTC
DTC
Error Message
Malfunction Criteria and
Threshold Value
P3150
Exhaust bank 4, O2 sensor
• O2S ceramic temp. < 725 °C
before cat. conv., heater circuit and
Regulation at upper limit
• Heater duty cycle > 90.00%
P3152
Exhaust Gas Bank 3, Sensor
1 Internal Resistance
Implausible
• O2S ceramic temp. < 725 °C
and
• Time after O2S heater on 55.0
Sec
P3153
Exhaust Gas Bank 4, Sensor
1 Internal Resistance
Implausible
• O2S ceramic temp. < 725 °C
and
• Time after O2S heater on 55.0
Sec
P3200
Exhaust-Bank3 -Sensor1,
Heating Circuit Short Circuit
To Ground
• Signal voltage 0.0 - 3.26 V
P3201
Exhaust-Bank 3 -Sensor 1,
Heating Circuit Short Circuit
To B+
Signal current > 5.50 A
P3202
Exhaust-Bank 3 -Sensor1 ,
Heating Circuit Open Circuit
Heater voltage 4.70 to 5.40 V
P3205
Exhaust-Bank 3-Sensor 1
Voltage Too Low
Short to ground
• Virtual mass (VM) voltage
< 1.75 V
• Nernst voltage (UN) < 1.50 V
• Adjustment voltage (IP)
< 0.30 V
P3206
Exhaust-Bank 3-Sensor 1
Voltage Too High
Short to battery
• Virtual mass (VM) voltage
˃ 3.25 V
• Nernst voltage (UN) ˃ 4.40 V
• Adjustment voltage (IP)
˃ 7.00 V
P3207
Exhaust-Bank 3-Sensor 1
Electrical Error In Circuit
O2S ceramic temp. < 690 °C
302 Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Error Message
Malfunction Criteria and
Threshold Value
P3209
Exhaust-Bank 3-Sensor 1
Signal Too Slow
SYMMETRIC FAULT:
• Difference of R2L area ratio vs.
L2R area ratio -0.40 - 0.40
• Lower value of both counters
for area ratio R2L and L2R ≥
5 times
Delay Time:
• Gradient ratio ≥ 0.50
• Lower value of both area ratios
R2L and L2R < 0.30
Transient Time:
• Gradient ratio ≥ 0.50
• Gradient ratio ≤ 0.55
• Lower value of both area ratios
R2L and L2R < 0.30
• or lower value of both gradient
ratios R2L and L2R < 0.50
- 💯【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.