Connect test box V.A.G 1598/18 to electronic manual gearbox control unit J514 — AUDI

Connect
test box
V.A.G 1598/18
to
electronic manual gearbox control unit
J514
Using
test box
V.A.G 1598/18
the wiring can be checked according to current flow diagram.
Switch off ignition.
Lift up floor mat in left side footwell.
Turn the lock mechanisms
1
anticlockwise and remove the cover plate.
Release multiple connector
arrow 1
and unplug from the control unit
arrow 2
.
Connect
test box
V.A.G 1598/18
to the multiple connector
arrow 1
and lock
arrow 2
.
Caution
To prevent damage to the electronic components, the appropriate measuring range must be selected before connecting the diagnosis leads and observe the test requirements.
Carry out all measures listed in the column
“Measures if readout does not match specification”
.
Only carry out test steps recommended in the fault table (targeted approach).
After the electrical test:
Connect multiple connector to the pins of the
electronic manual gearbox control unit
J514
arrow 1
and then lock
arrow 2
.
When installing, ensure that the guides are positioned on the pins of the control unit.
Note
For testing, use the
portable multimeter
V.A.G 1526 B
with auxiliary wires from
V.A.G 1594 C
or the
vehicle diagnostic, testing and information system
VAS 5051 A
with
diagnosis leads
VAS 5051 A/7
.
The socket designations of the
test box
V.A.G 1598/18
are identical to the contact designations of the
electronic manual gearbox control unit
J514
in the current flow diagram.
Damage may be caused to the system by testing incorrectly. Apart from the connectors listed in the test table, no other bridges may be connected.
The specified values are valid for an ambient temperature from 0°... 40° C.
If the readings obtained differ from the specified values, determine fault on the basis of the current flow diagram.
If the measured values deviate only slightly from the specified values, clean sockets and connectors of the testers and diagnosis leads and repeat test.
Before replacing components, their lines and connectors must be tested. Especially with specified values under 10 Ω the resistance measurement at the component should be repeated.
Check 68-part multiple connector of
electronic manual gearbox control unit
J514
(sockets on the
test box
V.A.G 1598/18
)
1 -
Earth (terminal 31)
37 -
Potentiometer 1 for gear recognition
G239
signal
2 -
Earth (terminal 31)
38 -
Potentiometer 2 for gear recognition
G240
signal
3 -
CAN low signal
39 -
Switch for selector lever gate recognition
F257
4 -
Potentiometer for selector lever, forwards/backwards
G272
(supply voltage 5 V)
40 -
Lockout switch for diesel engine
F207
5 -
Clutch travel sender
G162
signal
41 -
Switch for selector lever Stop recognition
F259
6 -
Not used
42 -
Not used
7 -
Not used
43 -
Gearbox speed sender
G38
(screening)
8 -
Not used
44 -
Earth for:
9 -
Load shutoff relay
J511
Sender for gearbox hydraulic pressure
G270
10 -
Not used
Potentiometer 1 for gear recognition
G239
11 -
Not used
Potentiometer 2 for gear recognition
G240
12 -
Starter inhibitor and reversing light relay
J226
45 -
Supply voltage of terminal 30
13 -
Not used
46 -
Gear selector valve 2
N285
14 -
Sender for gearbox hydraulic pressure
G270
signal
47 -
Supply voltage of terminal 15
15 -
Brake pressure switch
F270
48 -
Gear selector valve 4
N287
16 -
Door contact switch signal
49 -
Potentiometer for selector lever, forwards/backwards
G272
signal
17 -
Supply voltage 5 V (bridge to pin 30) for:
50 -
Supply voltage 5 V for
clutch travel sender
G162
Sender for gearbox hydraulic pressure
G270
51 -
Engine cycle (monitoring signal for kick-down)
Potentiometer 1 for gear recognition
G239
52 -
Not used
Potentiometer 2 for gear recognition
G240
53 -
Gear selector valve 3
N286
18 -
Start prompt from ignition/starter switch (terminal 50)
54 -
Gearbox hydraulic pump relay
J510
19 -
TD-(speed) signal
53 -
Not used
20 -
Gearbox speed sender
G38
signal
54 -
Not used
21 -
Vehicle speed signal
55 -
Not used
22 -
Gear selector valve 1
N284
56 -
Not used
23 -
Supply voltage for terminal 15 (bridge to pin 47)
57 -
Not used
24 -
K-wires of diagnosis
58 -
Valve for clutch actuator
N255
25 -
CAN high signal
59 -
Reversing light switch
F4
26 -
Not used
60 -
Not used
27 -
Potentiometer for selector lever, forwards/backwards
G272
earth
61 -
Not used
28 -
Clutch travel sender
G162
earth
62 -
Switch for selector lever N-recognition
F258
29 -
Selector lever lock solenoid
N110
63 -
Switch for Start/Stop mode
E262
30 -
Jumper to pin 17
64 -
Not used
31 -
Not used
65 -
Gearbox speed sender
G38
32 -
Valve for clutch actuator
N255
66 -
Not used
33 -
Gear selector valve 2
N285
67 -
Supply voltage for:
34 -
Gear selector valve 1
N284
Gear selector valve 3
N286
35 -
Not used
Gear selector valve 4
N287
36 -
Not used
68 -
Supply voltage of terminal 30