2008 Volkswagen Beetle Service & Repair Manual

1998-2004 ACCESSORIES & EQUIPMENT Cruise Control - New Beetle CRUISE CONTROL SYSTEM (CCS) THROUGH M.Y. 2001 GENERAL INFORMATION All cruise control system functions are controlled by the applicable Engine Control Module (ECM). The processing of electronic engine controls and cruise control functions are integrated in the ECM. Other than the cruise control switches on the steering column, the clutch and brake pedal switches and related wiring, there are no separate cruise control components to be serviced. As the electronic throttle control operations are monitored by On Board Diagnostic (OBD), Diagnostic Trouble Codes (DTC) pertaining to engine electronics that are stored in DTC memory may be relevant to cruise control function. Always check DTC memory in ECM first before troubleshooting (Function 02). CRUISE CONTROL SYSTEM (CCS) THROUGH M.Y. 2001, SERVICING The operating status of the cruise control system, cruise control switches, brake and clutch switches can be checked using the following procedure. Special tools and equipment z VAG 1551/1552 Scan Tool (ST) with VAG 1551/3 adapter cable, or VAS 5051 Vehicle Diagnostic Testing and Information System z Connector test kit VW 1594 z Test box VAG 1598A z Multimeter Fluke 83 z Wiring diagram Test requirements z Battery (B+) voltage at least 11.5 V z Ground connections on engine, transmission and battery OK z Diagnostic Trouble Code (DTC) memory of Engine Control Module (ECM) checked and OK z Fuse S5 OK z Fuse S43 OK Test sequence NOTE: z On some 1998 model year vehicles with automatic transmission, the CCS

z Connect VAG 1551/1552 Scan Tool See VAG 1551 SCAN TOOL (ST), CONNECTING, SELECTING FUNCTIONS & CHECKING CONTROL MODULE VERSIONS . z Switch on ignition z Press buttons 0 and 1 to select "Engine electronics" address word 01. Indicated on display (example only) z Press --> button. Fig. 1: VAG 1551/1552 Scan Tool Display - Cruise Control System (1 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. Indicated on display z Press buttons 0 and 8 to select function 08 "Read measuring value block". z Press Q button to enter input. switch is not supplied with voltage until the vehicle speed exceeds 30 km/h (approx. 19 mph) and the selector lever is in position D, 3 or 2. Once the switch has been supplied with voltage it will also remain live at idle, provided a driving range other than 1 or R is selected. z If the cruise control is inoperative on 1.9L TDI models, check if system is activated, See CRUISE CONTROL SYSTEM - TDI ENGINES, ACTIVATING .

Fig. 2: VAG 1551/1552 Scan Tool Display - Cruise Control System (2 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. Indicated on display Fig. 3: VAG 1551/1552 Scan Tool Display - Cruise Control System (3 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. For all 1.8 Liter Turbo & 2.0 Liter engines: z Press 0, 6 and 6 buttons to select "Display group 66". For 1.9 Liter TDI engine: z Press 0, 0 and 6 buttons to select "Display group 06". z Press Q button to enter input. Indicated on display

Fig. 4: Vag 1551/1552 Scan Tool Display - Cruise Control System (4 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z Refer to the following engine specific tables to interpret values in display fields 2 - 4: z 1.8 Liter Turbo (codes APH & AWV). See 1.8 LITER TURBO (CODES APH, AWV & AWP) & 2.0 LITER (CODES AVH & AZG) . z 1.9 Liter TDI. See 1.9 LITER TDI . z 2.0 Liter (code AEG). See 2.0 LITER (CODE AEG) . z 2.0 Liter (codes AVH & AZG). See 1.8 LITER TURBO (CODES APH, AWV & AWP) & 2.0 LITER (CODES AVH & AZG) . 1.8 Liter Turbo (codes APH, AWV & AWP) & 2.0 Liter (codes AVH & AZG) 1.8 LITER TURBO (CODES APH, AWV & AWP) & 2.0 LITER (CODES AVH & AZG) SPECIFICATION NOTE: z The road speed signal input to the ECM for cruise control function can be confirmed by performing a road test and observing that the km/h value indicated in display field 1 changes. z Always observe the appropriate safety precautions during road test. Display Group Display Field Designation Test Conditions Display Corrective Actions 66 2 Clutch vacuum vent valve -F36- and Brake switch - F47- Clutch and brake not depressed 1000 z Check for open/short circuit in wiring and connections to -F36- and/or -F47- using wiring diagram z Checking -F36- and/or -F47-: See "ADDITIONAL SIGNALS, CHECKING ". Brake 1011

2.0 Liter (code AEG) 2.0 LITER (CODE AEG) SPECIFICATION depressed Clutch depressed 1100 4 Cruise control switch -E45- -E45- in OFF position 0000 z Check for open/short circuit in wiring and connections to -E45-, -E227- and Engine Control Module (ECM) using wiring diagram -E45- in OFF position before switch point 0001 -E45- in ON position 0011 -E45- in RES position 1011 Button for cruise control SET - E227- -E45- in ON position -E227- SET button depressed 0111 Display Group Display Field Designation Test Conditions Display Corrective Actions 66 2 Clutch vacuum vent valve -F36- and Brake switch - F47- Clutch and brake not depressed 1000 z Check for open/short circuit in wiring and connections to -F36- and/or -F47- using wiring diagram (2) z Checking -F36- and/or -F47-: See "ADDITIONAL SIGNALS, CHECKING ". Brake depressed 1111 Clutch depressed 1110 4 Cruise control switch -E45- (1) -E45- in OFF position 0011 z Check for open/short circuit in wiring and connections to -E45-, -E227- and Engine Control Module (ECM) using wiring diagram -E45- in OFF position before 0010

1.9 Liter TDI 1.9 LITER TDI SPECIFICATION switch point -E45- in ON position 0000 -E45- in RES position 1000 Button for cruise control SET - E227- -E45- in ON position -E227- SET button depressed 0100 (1) In order to check -E45- on 1998 models with automatic transmission, it may be necessary to first perform a test drive and exceed 30 km/h (approx. 19 mph). Perform test at idle A drive range other than 1 or R must then be selected at idle with parking brake engaged. (2) The power supply circuit to -F36- and -F47- was changed beginning with m.y. 1999. Always use appropriate wiring diagram. Display Group Display Field Designation Test Conditions Display Corrective Actions 06 2 Clutch vacuum vent valve -F36- and Brake switch -F47- Clutch and brake not depressed 000 z Check for open/short circuit in wiring and connections to -F36- and/or -F47- using wiring diagram Brake depressed 0 1 1 Clutch depressed 1 00 - Clutch and brake depressed 1 1 1 3 Cruise control switch -E45- (1) -E45- in OFF position 000000 z Check for open/short circuit in wiring and connections to -E45-, - E227- and Diesel Direct Fuel injection Control Module (ECM) using wiring diagram - -E45- in OFF position before switch point 000001 -E45- in ON position 000011 -E45- in RES position 001011

CRUISE CONTROL SYSTEM - TDI ENGINES, ACTIVATING If a Diesel Direct Injection Engine Control Module (ECM) has been replaced, it may be necessary to activate the cruise control function in the new ECM. Check system status and activate if necessary using the following procedure. z Connect VAG 1551/1552 Scan Tool. See VAG 1551 SCAN TOOL (ST), CONNECTING, SELECTING FUNCTIONS & CHECKING CONTROL MODULE VERSIONS . z Switch on ignition z Press buttons 0 and 1 to select "Engine electronics" address word 01. Indicated on display (example only) Button for cruise control SET - E227- -E45- in ON position E227- SET button depressed 000111 4 System status System activated, - E45- in ON position 1 System activated, - E45- in OFF position 0 System not activated 255 z Activate cruise control, See CRUISE CONTROL SYSTEM - TDI ENGINES, ACTIVATING (1) In order to check -E45- on 1998 models with automatic transmission, it may first be necessary to perform a test drive and exceed 30 km/h (approx. 19 mph). A drive range other than 1 or R must then be selected at idle with parking brake engaged.

Fig. 5: Vag 1551/1552 Scan Tool Display - Cruise Control System - TDI Engines Activating (1 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z If display shows "G00SG", on top line, cruise control is activated. z If display shows "00SG", on top line, cruise control is not activated. { Press --> button to begin activation sequence. Indicated on display Fig. 6: Vag 1551/1552 Scan Tool Display - Cruise Control System - TDI Engines Activating (2 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z Press buttons 1 and 1 to select "Login-Procedure" function 11. Indicated on display

Fig. 7: Vag 1551/1552 Scan Tool Display - Cruise Control System - TDI Engines Activating (3 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z Press Q button to enter input. Indicated on display Fig. 8: Vag 1551/1552 Scan Tool Display - Cruise Control System - TDI Engines Activating (4 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z To activate cruise control, enter code number 11463 (to deactivate, enter 16167) z Press Q button to enter input. z End output (function 06) and perform test drive to confirm cruise control functions. CRUISE CONTROL SYSTEM - GASOLINE ENGINES, ACTIVATING If a Motronic Engine Control Module (ECM) or Diesel Direct Injection Control Module (DFI) has been

replaced, it may be necessary to activate the cruise control function in the new ECM. Activate/deactivate system using the following procedure. z Connect VAG 1551/1552 Scan Tool. See VAG 1551 SCAN TOOL (ST), CONNECTING, SELECTING FUNCTIONS & CHECKING CONTROL MODULE VERSIONS . z Switch on ignition z Press buttons 0 and 1 to select "Engine electronics" address word 01. Indicated on display (example only) Fig. 9: Vag 1551/1552 Scan Tool Display - Cruise Control System - Gasoline Engines Activating (1 Of 4) Courtesy of VOLKSWAGEN OF AMERICA, INC. z Press --> button. Indicated on display

2008 Volkswagen Beetle Service & Repair Manual

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