Touareg V6-3.2L (BMX) (2005)
Water Pump: Testing and Inspection
Diagnostic Procedures
Coolant Pump, Checking
Special tools, testers and auxiliary items required
‹› Multimeter (VAG1526) or Multimeter (VAG1715)
‹› Connector test kit (VAG1594)
‹› Wiring diagram
Test requirements
‹› Fuses in E-box (plenum chamber, left) must be OK:
‹› Motronic Engine Control Module (ECM) Power Supply Relay 2 (J670) must be OK, check:
‹› Auxiliary Engine Coolant (EC) Pump Relay (J496), -position A° must be OK, checking:
‹› Battery voltage must be at least 11.5 volts.
‹› All electrical consumers such as, lights and rear window defroster must be switched off.
‹› Ground (GND) connections between engine and chassis must be OK.
‹› Ignition switched off.
Test sequence
-
Disconnect 2-pin connector - 1 - from Coolant Pump (V36) (- 2 -).