Diesel Glow Plug System, Checking
Special tools and workshop equipment required
- Fluke 83 multi-meter
- VW 1594 adaptor kit
Checking Conditions
- Battery voltage 11.5 Volts minimum
- Ignition switched OFF
- Diesel direct injection system engine control module -J248- OK
- Glow plug strip fuse -S163- OK
- Production number on reverse side of glow plug relay must be: "180"
Checking Sequence
-- Disconnect harness connector from engine coolant temperature sensor -G62- (-arrow-).
NOTE:
Disconnecting -G62- simulates "engine cold" condition. Switching ON ignition initiates normal glow period.
-- Disconnect glow plug harness connectors from glow plugs.
-- Switch ON ignition.
-- Switch Fluke 83 multi-meter to 20 volt range.
-- Connect multi-meter between cyl. 1 glow plug harness connector and ground then repeat this checking sequence for cylinders 2, 3 and 4.
- Specification: Battery voltage for approximately 20 secs.
If no voltage present:
Refer to SYSTEM WIRING DIAGRAM
-- Erase DTC memory DTC MEMORY, ERASING .
-- Set the readiness code READINESS CODE, SETTING .