A6 Quattro Sedan V6-2.7L Turbo (APB) (2000)
-
Connect hand-held multimeter (voltage range) to terminal 15 of harness connector and Ground (GND).
-
Disconnect harness connector from fuel injector of cylinder to be tested.
-
Operate starter.
Specification: approx. battery voltage
If the specification is not obtained:
-
Check wiring.
If the specification is obtained:
-
Disconnect 3-pin harness connectors on power output stages for ignition coils.
-
Then connect diode test lamp to 3-pin connectors for both output stages.
-
Connect diode test lamp VAG1527 to following contacts on connectors for power output stages:
3-pin harness
Specification (with
connector terminal
starter activated)
1 + Ground
Diode test lamp (GND) should
2 + Ground (GND)
light up
3 + Ground (GND)
If the specifications are not obtained:
-
Switch ignition off.
Check the following wiring connections for open circuits and/or short to B+ or Ground (GND).
Black 3-pin
3-pin connector
connector on
on ignition coil
power output stage, terminal
terminal
1
1 (cylinder 1)