clutch AUDI A6 1998 C5 / 2.G ATQ Engine Additional Signals Testing Workshop Manual

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Clutch vacuum vent valve switch -F36-,
checking


Note:
This signal helps prevent excessive RPM
oscillations and tip-in shocks when clutch is
disengaged and is required for the cruise control
system.

Test sequence

- Connect VAS5051 tester or VAG1551 scan tool
and select the control module for engine
electronics using "address word" 01 Page 01
-
9 .

Ignition must remain switched on for this.Rapid data transfer
HELP
Select function XX

When indicated on display:
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read Measurin
g Value Block
Q
Input displa
y group number XXX

When indicated on display:
- Press buttons -0-, -6- and -6- to select "display group number 066" and
press -Q- button to confirm input.
Read Measuring Value Block 66

Indicated on display:
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1
2
3
4
- Check Clutch Pedal Position (CPP) switch in display field 2.
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Display fields

1 2 3 4
Display group 066: Signals to Engine Control Module (ECM)
Display xxx km/h
XXXX xxx km/h XXXX
Indicated ACTUAL speed
Switch positions SPECIFIED speed Switch positions
Functional range
X0XX
X1XX
Specified value
X0XX
(at clutch pedal
not operated)

X1XX
(at clutch pedal
operated)
Notes
Value:
X = no significance
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24-185
If indications do not resemble description:

Check switch

- Remove driver-side storage compartment.

Repair Manual, Body
-Interior, Repair Group
68; Instrument Panel; Removing Driver
-Side
Storage Compartment


- Disconnect harness connector at Clutch Pedal
Position (CPP) switch.

Note:
Connector sockets are marked on the back side
of the connector.

- Connect multimeter between terminal 1 and 2
for resistance measurement.


Specification: approx. 0

- Depress clutch pedal.


Specification: (no continuity)
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If specified value is not obtained:

- Check adjustment of switch or

- Replace Clutch Pedal Position (CPP) switch.
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