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Read measured value block
3 Display group number: 003
not
oper. off off off
Indicated on display
ASR/ESP warning light
off
on
ABS warning light
1)
off
on
Brake system warning light
1)
off
on
Brake light switch:
If "not oper." is indicated on the V.A.G 1551 display despite foot brake being
depressed or "operated", despite foot brake not being depressed, perform test step
No. 4 of electrical check, Page 01
-288 .
It is also possible that the brake light switch is not correctly adjusted.
Repair Manual, Brake System, Repair Group 46; Brake pedal
- Assembly
overview; Adjusting brake light switch
not oper. Brake pedal not depressed
operated Brake pedal depressed
1) During the diagnosis, ABS warning light -K47- and Warning light for brake system -K118- will
flash.
Стр. 92из 129 On Board Diagnostic (OBD), performing
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Read measured value block
4 Display group number: 004
0.0
0.0m/s2-
1.26 /s
Indicated on display (example)
Vacant
Sender for rotation rate:
Specification when vehicle is stationary:+/- 2.5 /s
Perform electrical check from Page 01-288
Sensor for transverse acceleration:
Specification when vehicle stationary:+/- 1.5m/s2
Specification at full lock at a speed of 20 km/h (13 mph) in a left-hand
curve: the values increase steadily.
Specification at full lock at a speed of 20 km/h (13 mph) in a right-hand
curve: the values increase steadily with a negative (-) sign.
Check lateral acceleration sensor -G200- Page 01-253
Perform electrical check from from Page 01-288
Steering angle sensor:
If the steering angle sensor -G85- is tested during straight-ahead travel, then zero
compensation must also be performed.
1)
Specification at straight ahead 4.5
Perform electrical checks from Page 01-288
- Initiate basic setting Page 01-264 Display group number 060
1) During a test drive with the V.A.G 1551 scan tool or tester VAS 5051 connected and in
"Diagnosis" or "Measured value block", there is no ABS or ESP regulation. The ABS or ESP
warning lights will flash. The OBD of ABS control module (w/EDL) -J104- is terminated when a
speed of 20 km/h (13 mph) is exceeded.
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Read measured value block
6 Display group number: 006
0.0m/s
2
Indicated on display (example)
Vacant
Vacant
Vacant
Longitudinal acceleration sensor:
1)
Specification when vehicle is stationary:+/- 1.5m/s2
Specification when accelerating forwards: The values increase steadily.
Specification when accelerating in reverse: The values increase steadily
with a negative sign (-).
Check longitudinal acceleration sensor -G251- Page 01-259
Perform electrical check Page 01-288
1) When performing a test drive where the V.A.G 1551 scan tool or tester VAS 5051 is
connected and in diagnosis or read measured value block mode there is no ABS regulation.
The ABS warning light does not light up. The OBD of ABS control module (w/EDL) -J104- is
terminated when exceeding a speed of 20 km/h (13 mph).
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Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 4. (The function
"Initiating basic setting" is selected with
04).
Rapid data transfer Q
04 - Basic settin
g
Indicated on display:
- Confirm entry with key Q.
Basic setting HELP
Enter displa
y group number XXX
Indicated on display:
- Press keys 0, 4 and 0
- Confirm entry with key Q.
ABS warning light flashes.
Basic setting 40 Indicated on display:
- The longitudinal acceleration sensor -
G251- is now switched off.
- After completing the checks, reactivate
the longitudinal acceleration sensor -
G251- by switching the ignition off and
on again, once.
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Basic setting HELP
Enter dis
play group number XXX
Indicated on display:
- Press keys 0, 6 and 0
- Confirm entry with key Q.
ABS warning light flashes.
Basic setting 60 OFF <4-ON>
Compens. OK.
0.0 And then the display shows e.g.:
Function is unknown or cannot be
-
performed at moment
If this display appears the login procedure
has not been performed successfully.
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- or:
Basic setting 60 OFF <4-ON>
Compens. not poss.
12. If this appears in the display, the measured
values for the zero compensation are not
within the allowed tolerance.
1. Check DTC memory (Function 02)
2. Erase DTC memory (Function 05)
3. End output (Function 06)
4. Switch off ignition.
5. Switch on ignition.
6. Perform zero compensation again. - Check specifications with help of function
08 "Read measured value block"
Page 01
-240 , Display group number
004.
-
Press key.
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 6, this ends the output.
Rapid data transfer Q
06 - End output Indicated on display
ABS and ESP warning lights light up for
approx. 2 seconds.
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Rapid data transfer Q
04 - Basic settin
g
Indicated on display:
- Confirm entry with key Q.
Basic setting HELP
Enter dis
play group number XXX
Indicated on display:
- Press keys 0, 6 and 3
- Confirm entry with key Q.
ABS warning light flashes.
Basic setting 63 OFF <4-ON>
Compens. OK. 0.6m/s2 And then the display shows e.g.:
Function is unknown or cannot be
-
performed at moment
If this display appears the login procedure
has not been performed successfully.
- or:
Basic setting 63 OFF <4-ON>
Com
pens. not poss. 5.0m/s2
If this appears in the display, the measured
values for the zero compensation are not
within the allowed tolerance.
- Check specifications with help of function
08 "Read measured value block"
Page 01
-240 , Display group number
004.
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1. Check DTC memory (Function 02)
2. Erase DTC memory (Function 05)
3. End output (Function 06)
4. Switch off ignition.
5. Switch on ignition.
6. Perform zero compensation again.
-
Press key.
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 6, this ends the output.
Rapid data transfer Q
06 - End output Indicated on display
ABS and ESP warning lights light up for
approx. 2 seconds.
Стр. 119из 129 On Board Diagnostic (OBD), performing