3. Check wiring for Drive Train CAN-Bus. See appropriate WIRING DIAGRAM under ENGINE
PERFORMANCE and COMPUTER DATA LINES in SYSTEM WIRING DIAGRAMS. Also see Fig.
40 -Fig. 42 .
4. If wiring is okay, go to next step. If wiring is not okay, repair as necessary. After repairs, erase DTC
memory. See CLEARING DIAGNOSTIC TROUBLE CODES (FUNCTION 05) under SELF
DIAGNOSTIC SYSTEM. Verify repair. Test is complete. Perform ECM relearn procedure. See TEST
DRIVE RELEARN PROCEDURE .
DTC P1642/18050: DRIVE TRAIN CAN-BUS - MALFUNCTION IN AIRBAG SYSTEM
Test Procedures
Check Airbag Control Module (J234) for DTCs . See AUTOMATIC TEST SEQUENCE (FUNCTION 00) .
Repair or replace as necessary. After repairs, erase DTC memory. See CLEARING DIAGNOSTIC
TROUBLE CODES (FUNCTION 05) under SELF DIAGNOSTIC SYSTEM. Verify repair. Test is complete.
Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE .
DTC P1653/18061: DRIVE TRAIN CAN-BUS - MALFUNCTION IN ABS SYSTEM
Test Procedures
Check ABS Control Module (J234) for DTCs. See AUTOMATIC TEST SEQUENCE (FUNCTION 00) .
Repair or replace as necessary. After repairs, erase DTC memory. See CLEARING DIAGNOSTIC
TROUBLE CODES (FUNCTION 05) under SELF DIAGNOSTIC SYSTEM. Verify repair. Test is complete.
Perform ECM relearn procedure. See TEST DRIVE RELEARN PROCEDURE .
NOTE:
For connector terminal wire colors, see appropriate WIRING DIAGRAM under
ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS. For component
locations, see COMPONENT LOCATIONS .
NOTE:
Before replacing any component, ensure all connectors at component and ECM
are clean and tight. After making any repairs, disconnect ECM harness
connector for 10 seconds, connect ECM harness connector and retest system.
It is necessary to generate an ECM readiness code if ECM memory is cleared,
battery voltage is disconnected or ECM is disconnected.
NOTE:
For connector terminal wire colors, see appropriate WIRING DIAGRAM under
ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS. For component
locations, see COMPONENT LOCATIONS .
NOTE:
Before replacing any component, ensure all connectors at component and ECM
are clean and tight. After making any repairs, disconnect ECM harness
connector for 10 seconds, connect ECM harness connector and retest system.
It is necessary to generate an ECM readiness code if ECM memory is cleared,
battery voltage is disconnected or ECM is disconnected.
2003 Volkswagen New Beetle GLS
2002-2004 ENGINE PERFORMANCE Self-Diagnostics - 1.9L Turbo Diesel - Beetle, Golf & Jetta (Engine Code ALH)
Helpmelearn Repair Manuals
Wednesday, December 14, 2005 8:48:24 AM
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