Volkswagen Workshop Service and Repair Manuals

Notes:

• ◆ Use the hand multimeter V.A.G 1526 or the multimeter V.A.G 1715 and the diode test lamp V.A.G 1527 for the checks.
• ◆ The specifications given are valid for an ambient temperature from 0 to + 40 °C.
• ◆ If the measured figures deviate from the specifications, determine fault using current flow diagram.
• ◆ If the measured figures only deviate slightly from the specifications, clean sockets and plugs on the tester and measuring cables, then repeat check. Before replacing components check wiring and connections and particularly in cases of specifications less than 10ω repeat the resistance measurement on the component.
• ◆ To connect the testers to the test box use aux. cables from adapter set V.A.G 1594.
• ◆ The contact numbers of the plugs and the socket numbers in the test box are identical.
• ◆ Additional to the checks described in the table, if necessary, the wiring must also be checked for short to earth (-) or battery positive (+).

• ● Battery voltage OK.
• ● Fuses 15 and 18 OK.
• ● Earth connections on engine and gearbox OK.
  (Earth connection engine: on cylinder head).
• ● Fuel pump and fuel pump relay OK.

• ‒ → With ignition switched off pull connector -1- off control unit -2-.
• ‒ Connect test box to wiring loom connector.
• ‒ Carry out check according to following table.