Volkswagen New Beetle. Manual - part 956

 

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Volkswagen New Beetle. Manual - part 956

 

 

Fig. 1: Identifying A/C-Heater System Components In Engine Compartment 
Courtesy of VOLKSWAGEN UNITED STATES, INC. 

Fig. 2: Locating Coolant Fan Control Thermo Switch 
Courtesy of VOLKSWAGEN UNITED STATES, INC.

 

2003 Volkswagen New Beetle GLS 

1998-04 ENGINE COOLING Electric Cooling Fans - Beetle

  

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Wednesday, December 14, 2005 8:37:31 AM

Page 4 

© 2004 Mitchell Repair Information Company, LLC. 

Fig. 3: Identifying Thirteen-Way Relay Panel Components 
Courtesy of VOLKSWAGEN UNITED STATES, INC. 

COMPONENT TESTS 

A/C HIGH PRESSURE SENSOR 

The 3-wire sensor pin values are as follows:  

z

Pin 1: Ground  

z

Pin 2: Duty Cycle (square wave) signal to coolant fan control module and ECM (some models)  

z

Pin 3: Battery power  

 

2003 Volkswagen New Beetle GLS 

1998-04 ENGINE COOLING Electric Cooling Fans - Beetle

  

Helpmelearn Repair Manuals 

 

Wednesday, December 14, 2005 8:37:31 AM

Page 5 

© 2004 Mitchell Repair Information Company, LLC. 

Fig. 4: Identifying A/C High Pressure Sensor Terminal 
Courtesy of VOLKSWAGEN UNITED STATES, INC. 

Duty cycle reading can be used to diagnose A/C high pressure sensor. Turn ignition on, with engine off. No 
other testing is available from manufacturer.  

A/C HIGH PRESSURE SWITCH 

1999 

Switch terminal Nos. 3 and 4 control coolant fan operation via the coolant fan control module. Fan speed 
increases to the next higher speed when system pressure increases. The switch closes above 232 psi (16 bar), 
and opens again below 181 psi (12.5 bar).  

 

2003 Volkswagen New Beetle GLS 

1998-04 ENGINE COOLING Electric Cooling Fans - Beetle

  

Helpmelearn Repair Manuals 

 

Wednesday, December 14, 2005 8:37:31 AM

Page 6 

© 2004 Mitchell Repair Information Company, LLC. 

Fig. 5: Identifying A/C High Pressure Switch Terminal 
Courtesy of VOLKSWAGEN UNITED STATES, INC. 

COOLANT FAN CONTROL THERMO SWITCH 

The coolant fan control thermo switch turns on and off based on coolant temperature. For thermo switch on/off 
temperature specifications, see COOLANT FAN CONTROL THERMO SWITCH SPECIFICATIONS 
table.  

COOLANT FAN CONTROL THERMO SWITCH SPECIFICATIONS 

Application 

Specification 

1.8L Turbo, 1.9L TDI & 2.0L 

 

2003 Volkswagen New Beetle GLS 

1998-04 ENGINE COOLING Electric Cooling Fans - Beetle

  

Helpmelearn Repair Manuals 

 

Wednesday, December 14, 2005 8:37:31 AM

Page 7 

© 2004 Mitchell Repair Information Company, LLC. 

 

 

 

 

 

 

 

Content   ..  954  955  956  957   ..