buttons AUDI A6 1999 C5 / 2.G AEB Engine Additional Signal

24-146

Checking

- Connect VAG 1551 or VAG 1552 scan tool and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) Page 01
-7 .
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
Read Measurin
g Value Block
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -5- and -0- to input display group number 50, and
press -Q- button to confirm input.
Read Measuring Value Block 50 1 2 3 4

Indicated on display (1-4 = display fields)
- Switch on A/C (lowest temperature and highest fan position).
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24-150

Test procedure

- Connect VAG 1551 or VAG 1552 scan tool and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) Page 01
-7 .
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
Read Measurin
g Value Block
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -0- and -5- to input display group number 5, and
press -Q- button to confirm input.
Read Measuring Value Block 5 1 2 3 4

Indicated on display (1-4 = display fields)
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-
Press button toadvance program sequence.
- Press buttons -0- and -6- to select "End Output"
function 06, and press -Q- button to confirm
input.

- Switch off ignition.
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press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) Page 01
-7 .
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
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24-154

Read Measurin
g Value Block
HELP
Input display group number XXX

Indicated on display
- Press buttons -0-, -5- and -6- to input display group number 56, and
press -Q- button to confirm input.
Read Measuring Value Block 56 1 2 3 4

Indicated on display (1-4 = display fields)
- Compare display with specified value in display field 4:

Display fields

1 2 3
4
Display group 56: Engine idle
Display xxxx RPM xxxx RPM x.xx g/s
xxxx
Indicates Actual engine
speed
(in 10 RPM
steps) Specified engine
speed
(in 10 RPM
steps) Control value-Idle mass air flow
(idle air control valve) Operating condition
Range 0-2550 RPM --- ---
---
Specified
value 0 RPM 0 RPM -1.11 to 1.11 g/s
0000 = Selector lever in P or N
0010 = Selector lever in 2/3/4/R/D

--- --- ---
If not as specified Page 24
-155
,
Continuation;
Explanation of display Page 24-
16

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24-155
If displayed value is OK (as specified):

-
Press button toadvance program sequence.
- Press buttons -0- and -6- to select "End Output"
function 06, and press -Q- button to confirm
input.

- Check readiness code Page 01
-59
. If
Diagnostic Trouble Code (DTC) memory has
been erased, or ECM was disconnected,
generate new readiness code Page 01
-62
.

Continuation:
If displayed value is NOT OK (not as specified):

- Connect VAG 1598/22 test box to ECM harness
connector Page 01
-56
.

- Connect VAG 1527B LED voltage tester
between ECM/test box sockets 3 (battery
voltage, terminal 30) and 22.


LED must come on with selector lever in P
or N

LED must then go out when selecting
2/3/4/R/D
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24-158

Test procedure

- Connect VAG 1551 or VAG 1552 scan tool and
press buttons -0- and -1- to insert "Engine
Electronics" address word 01 (with engine
running at idle) Page 01
-7 .
Rapid data transfer
HELP
Select function XX

Indicated on display
- Press buttons -0- and -8- to select "Read Measuring Value Block"
function 08, and press -Q- button to confirm input.
Read Measurin
g Value Block
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons 1, 2 and 2- to input display group number 122, and press
-Q- button to confirm input.
Read Measuring Value Block 122 1 2 3 4

Indicated on display (1-4 = display fields)
WARNING!
A second technician is required to operate the VAG 1551 scan tool
during the road test. - Road test.
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24-159

- Compare display with specified value in display
field 4:

Display fields

1 2 3 4
Display group 122: Engine torque reduction during shifting
Display xxxx RPM xxx Nm xxx Nm TCS active
Motor enga
Indicates Engine speed
(in 40 RPM
steps) Required engine
torque
(Specified torque) Actual engine
torque
(Actual torque) Timing angle retard active or not active
Range 0-6800 RPM -100 to 410 Nm -100 to 310 Nm ---
Specified
value --- --- --- When shifting, "Motor enga" must be
displayed briefly

--- --- --- If not as specified Page 24
-160

If display is OK (as specified):

-
Press button to advance program
sequence.
- Press buttons -0- and -6- to select "End Output"
function 06, and press -Q- button to confirm
input.
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gnals
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e=re
pair&id=AUDI.B5.FU02.24.5