Volkswagen/Audi Vehicle Communication Software Manual August 2009 eaz0031B01d rev. A


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release
To unlock a fixed line and allow it to scroll.
screen
Any given line display.
4WD
4 wheel drive
ABS
antilock brake system
A/C
air conditioning
AIR
secondary Air Injection (OBD-II)
APP
accelerator pedal position


152
Acronyms
ASC
anti-spin control
ASR
anti-slip regulation
A/T
automatic transmission
B1S1
bank 1, sensor 1 (passenger side pre-catalytic, upstream oxygen sensor)
B1S2
bank 1, sensor 2 (passenger side post-catalytic, downstream oxygen sensor)
B2S1
bank 2, sensor 1 (driver side pre-catalytic, upstream oxygen sensor)
B2S2
bank 2, sensor 2 (driver side post-catalytic, downstream oxygen sensor)
BDC
bottom dead center
CA
California
CAN
controller area network
CAT
catalytic converter
CCS
cruise control system
CMP
camshaft position
CPI
central point injection
CPP
clutch pedal position
CTP
closed throttle position
CVT
continuously variable transmission
DA
drivers airbag
DIS
digital idle speed control
DLC
data link connector
DP
driver pretensioner
DLC
data link connector
DSA
driver side airbag
DSL
diesel engine
DTC
diagnostic trouble code
DTM
output diagnostic test mode
ECM
engine control module
ECT
electronic coolant temperature
ECU
electronic control unit
EDL
electronic differential lock
EDS
pressure regulator
EFI
electronic fuel injection
EGR
exhaust gas recirculation
EMS
engine management system
EPC
electronic power control
ESP
electronic stability control
EVAP
evaporative emissions system


153
Acronyms
FL
front left (wheel)
FR
front right (wheel)
FT
fuel trim
IAT
intake air temperature
ISC
idle speed control
L4
4 cylinder longitudinal mounted engine
LDP
leak detection pump
LEV
low emission vehicle
MAF
mass airflow sensor
MAP
manifold absolute pressure
MBAR
millibar; 1000 millibar = 14.5 psi
MIL
malfunction indicator lamp
MPI
multipoint injection
MSR
engine drag torque control
M/T
manual transmission
MV
magnetic valve(s)
O2S
oxygen sensor
PA
passenger airbag
PNP
park/neutral position
PP
passenger pretensioner
PSA
passenger side airbag
RL
rear left (wheel)
RR
rear right (wheel)
SAI
secondary air injection
SFI
sequential fuel injection
SULEV
super ultra low emission vehicle
TCC
torque converter clutch
TCM
transmission control module
TCS
traction control system
TDC
top dead center
TDI
turbo direct injection
TLEV
transitional low emission vehicle
TP
throttle position
TWC
three way catalytic converter
ULEV
ultra low emission vehicle
V6
6-cylinder V-type engine
WOT
wide open throttle
ZEV
zero emission vehicle


154
Appendix B
Troubleshooting
This chapter contains information for troubleshooting specific problems that may arise when using the scan tool.
B.1 Communication Problems
When the scan tool is unable to establish communication with the control module in the vehicle under test, or when the communication is interrupted, a message will display. If this happens, wait to see whether the communication is established again or interrupted. If communication is interrupted again, press N to abort.
NOTE:
i
Switching the ignition off-and-on and reentering the ID may reset communication.


Volkswagen/audi
Safety message conventions
Safety information
Chapter 2: introduction. 3
Table of contents
Appendix b troubleshooting ............................................................................................... 154
Appendix c fuel control learning adaptation values ...................................................... 157
Chapter 3operations
Identify the vehicle by entering vin digits
Ber: unknown at this time.bev
Bek: unknown at this time.1.9l tdibew
Aeb, atw, aug, awm
Ayh: unknown at this time.bkw
Aha, atq: on the block in front of the right cylinder head.aha only
Awn: unknown at this time.bbd
Bas: on the right-hand side at the rear of the cylinder head.bcy
Amb: unknown at this time.bkb
Automatic transmission
Manual transmission
To select a system for testing:
To access a demonstration:
Select the expert mode function
Expert modeusing expert mode
To perform an automatic system test:
Using expert mode
Note the following regarding control module coding:
Display group number
Example 1: 2002 vw jetta drive-by-wire, bosch me 7.5 control system
Example 4: late model motronic 7.5
Expert modetesting in expert mode
Chapter 5testing
Testingtesting engine systems
Data groups displays data in diagnostic groups to make problem solving easier.•
To display data groups:
To run actuator tests:
Warningrisk of erratic vehicle response.•
Functional test menu > basic settings
Expert mode > engine management master > basic setting
Body adaptation).
Ignition timing.
Basic settings and fuel trim accelerated learning
Crankshaft sensor wheel learning.
To reset the service light:
Pre-set functions
Read, set/reset functions
Transmissiontransmission features
Table 5-7 transmission types and system descriptions (part 2 of 4)transmission
Table 5-7 transmission types and system descriptions (part 3 of 4)transmission
Table 5-7 transmission types and system descriptions (part 4 of 4)transmission
Part numbervin
Testingtesting transmission systems
Kickdown function.
Fail-safe functions of the tcm
Fail-safe mode with active control module
Emergency operation 2
Testingtesting electronic throttle systems
What should i do if i get pedal position faults?
Throttle position sensor (v) ______________________________________ 4.380
Adaptation status ok
Throttle valve angle (degrees) ________________________________________ 2
Epc indicator light operation
Testingtesting abs systems
Throttle valve angle sns 2 (%) _______________________________________ 11
Abs systemscodes
Testingtesting immobilizer systems
Immobilizer ii engine control module replacement adaptation
Key coding (adaptation)
Immobilizer iii engine control module replacement adaptation
Immobilizer ii and iii adaptation remote key programming
To match ignition keys to radio frequency remote control:
Important tips for setting immobilizer adaptations
Passat, new beetle, new jetta, new golf
How do you tell if you have an immobilizer?
What does the scan tool do on immobilizer ii?
Electronic instrument panel, type a
Electronic instrument panel, type b
Electronic instrument panel, type c
Testingtesting electronic instrument panel systems
Electronic instrument panel, type f
Electronic instrument panel, type g
Electronic instrument panel, type h
Electronic instrument panel, type i
Electronic instrument panel, type k
Note the following when working on srs systems:
Testingtesting can data bus systems
Prioritycontrol unit
Chapter 6data parameters
Input or feedback parameters
Data parameters
A/c compressor off)
A/c switch ___________________________________________________ (range on/off)
Accel.pedal position sns 1(%)
Adaptation error ___________________________________________ (range yes/no)
Adp eng speed sensor(crown gear) __________________ (range io or running)
Adp stopped(time exceeded) _________________________________ (range yes/no)
Adp value canp system __________________________________ (range not available)
Adp value mixture(bank1)(%)
Air divert valve _____________________________________________ (range on/off)
Alternator defect __________________________________________ (range yes/no)
Ambient temperature(°c/°f) ______________________________ (range not available)
Base value throttle adjuster __________________________ (range not available)
Battery(v) _______________________________________________ (range not available)
Battery voltage too low ___________________________________ (range yes/no)
Brake pedal switch range open/closed)
Camshaft position(bank 2)(°)_____________________________ (range not available)
Canp flush ________________________________________________ (range 0 to 100%)
Canp valve closed __________________________________________ (range yes/no)
Canp valve on min mode _____________________________________ (range yes/no)
Catalyst temperature(°c/f) _____________________________ (range not available)
Clutch pedal pressed ______________________________________ (range yes/no)
Control value mixture(%)
Coolant temperature >80°c _________________________________ (range yes/no)
Ctrl value mixture/o2(%) ________________________________ (range not available)
Current consumption iac(a)_____________________________ (range not available)
Deceleration enleanment ______________________________ (range not available)
Duty cycle iac(%)________________________________________ (range not available)
Engine load) __________________________________________ (range not available)
Engine load(v)___________________________________________ (range not available)
Engine load(actual)(nm) ________________________________ (range not available)
Engine load(before corr)(ms) ___________________________ (range not available)
Engine speed(rpm) _______________________________________ (range not available)
Engine speed(idle)(rpm)__________________________________ (range not available)
Fuel low ________________________________________________ (range not available)
Iac integrator __________________________________________ (range not available)
Idle speed(actual)(rpm) _________________________________ (range not available)
Idle speed switch closed ___________________________________ (range yes/no)
Ign rtd by knock(°)
Ign rtd by tcs-ecu(cold)(°) ______________________________ (range not available)
Ign rtd w/o knock & w/o isc(°)____________________________ (range not available)
Increased idle speed with ac on ____________________________ (range yes/no)
Injection time(ms) _______________________________________ (range not available)
Intake manifold pressure) ____________________________ (range not available)
Isc(reaction to malfunction) ___________________________ (range not available)
Knock ctrl(°) ____________________________________________ (range not available)
Learn injection time(ms)_________________________________ (range not available)
Learn range o idle
Learn value air mass idle) range see description)
Learn value idle speed(p/n) _____________________________ (range not available)
Learn value isc(at ind (range not available)
Learn value maf-sensor ________________________________ (range not available)
Learn value mixture(adaptive) __________________________ (range not available)
Learn value mixture(adp)(ms) ___________________________ (range not available)
Learn value mixture(canp act) _______________________ (range not available)
Learn value mixture corr ______________________________ (range not available)
Learn value mixture corr) ____________________________ (range not available)
Learn value mixture corr(ms) ___________________________ (range not available)
Learn value o2(actual)(bk1)(%)
Learn value o2(bk1)(%)
Learn value o2(full)
Learn value o2(idle)(%)
Learn value o2(idle)(ms) _________________________________ (range not available)
Learn value tps _________________________________________ (range not available)
Limited operation(limp) ______________________________________ (range yes/no)
Maf isc trim) __________________________________________ (range not available)
Map(%) ___________________________________________________ (range not available)
Map-controlled idle speed _____________________________ (range not available)
Mass air flow(v)_________________________________________ (range not available)
Mass air flow(desired)(g/s) ______________________________ (range not available)
Min value thr adjuster (range not available)
Mixture __________________________________________________ (range rich/lean)
Mixture correction _____________________________________ (range not available)
Mixture correction) __________________________________ (range not available)
Mode hall-reference signal ____________________________ (range not available)
O2 control mode _________________________________ (range active/not active)
O2 corr(canp activated) ______________________________ (range not available)
O2 ctrl & act(bank 1)(%)
O2 ctrl factor(bank 1)
O2 ctrl ready _______________________________________________ (range yes/no)
O2 loop closed (range yes/no)
Factory data name
O2 regulation active ________________________________________ (range yes/no)
O2 sensor(v)o2 sensor 1(v)
O2 sensor heater after cat _________________________________ (range on/off)
O2 value _________________________________________________ (range not available)
O2 value(actual)(%)
Part load detected _________________________________________ (range yes/no)
Relative air mass) _____________________________________ (range not available)
Retarding steps (range not available)
Secondary air mass(g/s) _________________________________ (range not available)
Slide valve sensor(min)(v) _______________________________ (range not available)
Start of delivery(desired)(°) ____________________________ (range not available)
Thr adj sensor, min lrn ok/exec_____________________________ (range yes/no)
Thr valve adjuster angle(v) ____________________________ (range not available)
Throttle valve adjuster(v) _____________________________ (range not available)
Throttle valve position) ______________________________ (range not available)
Time counter 2 __________________________________________ (range not available)
Torque(desired)(nm)_____________________________________ (range not available)
Torque reduction(nm)
Tps, min lrn ok/exec _________________________________________ (range yes/no)
Vehicle speed ctrl __________________________________ (range tacho/speedo)
Warm up cat) __________________________________________ (range not available)
Battery voltage below v __________________________________ (range yes/no)
Coolant temperature) _________________________________ (range not available)
Coolant tmp >70°c/or air temp >5°c __________________________ (range yes/no)
Fuel cons. aux heater(l/h) _______________________________ (range not available)
Glow time(s) _____________________________________________ (range not available)
Inj diff cyl 1 to 3(mg/s)
Inj quantity(driver)(mg/s)
Maf 2(mg/s)_______________________________________________ (range not available)
Mass air flow(desired)(ms/s)
Rel.heat low ________________________________________________ (range yes/no)
Start quantity(mg/s) ____________________________________ (range not available)
Actual selected gear ______________________________________ (range variable)
A/t___________________________________________________________ (range yes/no)
A/t output(rpm)____________________________________ (range 0 to maximum rpm)
Battery voltage _____________________________________ (range 9.0 to 16.0 volts)
Table 6-3 transmission input speedgear
Kickdown switch ____________________________________________ (range on/off)
Lock-up slip ________________________________________________ (range 0 to 99%)
Lock-up slip ________________________________________________ (range 0 to stall)
Required solenoid #4
Solenoid #1solenoid #2
Gearsv 1 (n88)
Sport factor) ___________________________________________ (range 0 to 100%)
Throttle valve position(v) range v to 4.680v)
Vehicle speed sensor(v)_________________________________ (range 2.20 to 2.52v)
Adaptation of start-from-stop behavior forward (range adp ok/running)
Gear selected range h to m +/–)
Torque converter slip speed (range 0 to stall speed)
Tcs switch __________________________________________________ (range on/off)
Note the following regarding communication problems with vw/audi vehicles:
The aftermarket radio problem
To test this problem without a voltmeter:
Figure b back of premium vi radioi
Additive for idle adaptation.•
Fuel control learning adaptation values
C.1.3 examples of display groups for long term ft adaptive value
C.3 oxygen sensor voltage
C.5.1 oxygen sensor aging test
Display group
Groupsensor
Cchecking for codes (test drive) coding and programmingvw 1996–99 mechanical keys 80d



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