Volkswagen New Beetle. Manual - part 708

 

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Volkswagen New Beetle. Manual - part 708

 

 

FUNCTIONAL CHECK: ABS WARNING LIGHT -K47- 

FUNCTIONAL CHECK: ABS HYDRAULIC PUMP -V64- 

(OBD), harness 

connector T16

connect socket 7 of 

VAG1598/21 and terminal 7 

of harness connector T16 to 

multimeter (Fluke 83 or 

equivalent).  

(1)

Terminal assignment of Data Link Connector (DLC) for voltage supply and On Board Diagnostic 
(OBD) with the VAG1551 scan tool, see MULTI-PIN HARNESS CONNECTOR WITH 
TERMINAL ASSIGNMENT
 .

Functional check: ABS warning light -K47-

Test 
step

VAG1598 

sockets

Test of

z

Test 

conditions  

z

Additional 

operations  

Specified 

value

Corrective action

16

-

Function of 

ABS 

warning light 

-K47-

z

Ignition off 

 

z

Check wire from terminal 

4 via fuse -S9- to ignition 

switch. 

 

 

 

z

Switch 

ignition on. 

ABS warning light 
-K47- lights up for 

2 seconds and 

goes out again

z

Check wire from terminal 

16 (control module) to 

terminal T32/19 

(instrument cluster) for 

open circuit. 

z

Check wire from terminal 

T32/19 (instrument 

cluster) to Ground (GND). 

z

Malfunction in instrument 

cluster. 

Functional check: ABS hydraulic pump -V64-

Test 
step

VAG1598 

sockets

Test of

z

Test conditions  

z

Additional 

operations  

Specified 

value

Corrective action

17

-

Function of 

ABS 

hydraulic 

pump -V64-

z

Ignition off  

z

Pull hydraulic 

pump harness 

connector T2 off 

control module.  

 

 

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

CHECKING CAN-BUS WIRE 

CHECKING CAN-BUS WIRE 

 

 

 

z

Connect Ground 
(GND) and T2/2 

battery voltage to 

hydraulic pump 

T2/1 harness 

connector.  

Hydraulic 

pump runs 

without error 

(max. 10 

secs.)

z

Perform output 

Diagnostic Test Mode 

(DTM), see OUTPUT 

DIAGNOSTIC TEST 

MODE (FUNCTION 

03) 

z

Replace control module. 

 

 

 

 

Hydraulic 

pump does 

not run

z

Replace hydraulic unit. 

Checking CAN-bus wire

Resistance test - switch to 200 ohm measuring range

Test 
step

VAG1598 

sockets

Test 

of

z

Test conditions  

z

Additional operations 

Specified

value

Corrective action

18

11 +10 

10 + 8 

10 + 24 

11 + 8 

11 + 24

CAN-

bus

z

Ignition off  

z

ABS control module 

harness connector 

connected  

z

Do not disconnect 

T10A.  

z

Using VW1594, 

connect T10A terminal 

2 and terminal 1 to 

multimeter (Fluke 83 

or equivalent).  

50.0 - 70.0 

ohm

z

Check wiring according to 

wiring diagram. 

z

Disconnect all connectors 

from control modules. 

z

Connect each control 

module separately. 

z

Only two control modules 

can each have a terminating 

impedance of 120 ohms. 

z

Either a third control 

module is attached with a 

terminating impedance or a 

control module is 

malfunctioning. 

18 
(Cont.)

11 +10 

10 + 8 

10 + 24 

11 + 8 

11 + 24

CAN-

bus

Ignition Off

greater 

than 300 

ohms

Check for short circuit to ground. 
Repair Accordingly.

Checking CAN-bus wire
Voltage test - switch to 20V DC measuring range

z

Test 

conditions  

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

SWITCH TO MEASURING RANGE: RESISTANCE MEASUREMENT (200 ohm/20 M ohm) 

SWITCH TO MEASURING RANGE: RESISTANCE MEASUREMENT (200 ohm/20 M ohm) 

Test 
step

VAG1598 

sockets

Test of

z

Additional 

operations  

Specified

value

Corrective action

19

10 + 9 
10 + 4 

10 + 25 

11 +9 

11 + 4 

11 + 25

CAN-bus 

wiring (short 

circuit to B+)

z

Ignition on   less than 6 

V

z

Check for short circuit to 

battery to wiring diagram; 

repair accordingly 

Switch to measuring range: Resistance measurement (200 ohm/20 M ohm)

Test 
step

V.A.G 

1598 

sockets

Item 

tested

z

Test conditions  

z

Additional operations  

Specified 

value

Corrective action

19

11+10

CAN-

bus 

wiring

z

Ignition switched off  

z

Set to measuring range 200 ohm  

 

 

 

 

 

z

Disconnect multi-pin connection 

from a control module which is 

connected via data bus wiring:  

 

 

 

 

 

z

Connect test box V.A.G 1598/21 

 

 

 

 

 

z

Check data bus wiring for open 

circuit  

max. 1.5 

ohm

z

Check wiring 

using wiring 

diagram. 

19

 

CAN-

bus 

wiring

z

Set to measuring range 20 M ohm 

 

 

 

 

 

z

Remove fuse S9  

 

 

 

 

 

z

Check wiring for short circuit to 

positive or earth  

  

Infinite 

Ohms

 

 

 

 

 

 

z

Check wiring 

using wiring 

diagram 

Switch to measuring range: Resistance measurement (200 ohm/20 M ohm)

Test 
step

V.A.G 

1598 

sockets

Item tested

z

Test conditions  

z

Additional operations  

Specified 

value

Corrective action

20

-

Longitudinal 

acceleration 

z

Ignition switched off  

z

Select 200 ohm measuring range  

 

 

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

FUNCTIONAL CHECK: WARNING LIGHT FOR BRAKE SYSTEM K118 

sensor -G251- 

wiring

z

Disconnect connector for 

longitudinal acceleration sensor -

G251-  

 

 

 

z

Disconnect multi-pin connector 

T25 from control module 

(w/EDL) -J104-  

 

 

 

 

 

z

Connect test box V.A.G 1598/21  

 

 

 

 

 

z

Check wiring between multi-pin 

connector for longitudinal 

acceleration sensor -G251- and 

multi-pin connector for control 

module (w/EDL) -J104- for open 

circuit  

max. 1.5 

ohm

z

Check 

wiring 

using 

wiring 

diagram 

 

 

 

z

Set to measuring range 20 M ohm 

 

 

 

 

 

z

Remove fuse S9  

 

 

 

 

 

z

Check wiring for short circuit to 

positive or Ground  

ohm

 

 

 

 

 

 

z

Check 

wiring 

using 

wiring 

diagram 

Functional check: Warning light for brake system -K118

Test 
step

V.A.G 

1598 

sockets

Item tested

z

Test conditions 

z

Additional 

operations  

Specified value

Corrective action

21

-

Function of 

warning light 

for brake 

system -K118-

z

Brake fluid level 

is OK.  

z

Switch ignition 

on  

Warning light for 

brake system -K118- 

lights up for approx. 

2 seconds and goes 

out again

z

Check brake fluid 

level warning 

switch -F34- in 

sealing cap 

 

 

 

z

Pull connectors 

off both front 

speed sensors  

z

Start engine and 

run at more than 

2000 RPM  

Warning light for 

brake system -K118- 

lights up and 3 

warnings are 

sounded

z

Check wiring 

using wiring 

diagram 

 

 

 

 

 

z

Malfunction in 

 

2003 Volkswagen New Beetle GLS 

1998-2004 BRAKES On Board Diagnostic (OBD) - New Beetle

  

 

 

 

 

 

 

 

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