A4 Mk1
Servicing electrical additional heater - Vehicles with TDI engine 06.94 ä
Checking function of electrical additional heater
Electrical additional heater is activated by control unit for diesel direct injection system -J248 when following conditions occur at the same time:
=> Relevant Workshop Manual Diesel Direct Injection and Glow Plug System; Repair group 01; Reading measured value block Test sequence
=> Relevant Workshop Manual for Diesel Direct Injection and Glow Plug System (TDI 4-cyl.); Repair group 01; Final control diagnosis If the relays are OK:
=> Current Flow Diagrams, Electrical Fault-finding and Fitting Locations binder |
If no wiring fault is detected:
If specified value is not attained:
=> Relevant Workshop Manual Engine, Mechanical Components; Repair group 19 |