Jetta Sedan L5-2.5L (BGP) (2005)
-
Using a Multimeter, check the Ignition Coil electrical harness connector terminal 1 to Ground (GND) for voltage.
Specified value: battery voltage.
-
Switch the ignition off.
If the specified value was not obtained:
-
Check the Ignition Coil electrical harness connector terminal 1 to the Motronic Engine Control Module (ECM) Power Supply Relay (J271)
terminal 2/87 for an open circuit or a short circuit to Ground (GND).
-
Check the wiring connection for damage, corrosion, loose or broken terminals.
-
If necessary, repair the faulty wiring connection.
If the specified values were obtained:
Checking activation
CAUTION!
Do not touch the Ignition Coils connecting parts or adapter cables during the following test.
-
Disable the power supply to the Fuel Injectors by removing Fuse (SB29).
-
Using a diode test lamp, check the Ignition Coil electrical harness connector terminals 1 to 3 for voltage.
-
Operate the starter.