A3 L4-2.0L Turbo (BPY) (2006)
Ignition Coil: Testing and Inspection
Ignition Coils With Power Output Stage N70, N127, N291, N292, Checking
The following procedure is used to diagnose all Ignition Coils with Power Output Stage.
Special tools, testers and auxiliary items required
-
Multimeter.
-
Diode test lamp.
-
Wiring diagram.
Test requirements
-
The Ignition Coils with Power Output Stage N70, N127, N291, N292 fuses OK.
-
The Motronic Engine Control Module (ECM) Power Supply Relay J271 OK, ADD LINK.
-
The Engine Speed (RPM) Sensor G28 OK. See: Computers and Control Systems/Engine Speed Sensor/Testing and Inspection
-
The Camshaft Position (CMP) Sensor G40 OK. See: Camshaft Position Sensor/Testing and Inspection
-
Battery voltage at least 12.5 volts.
-
All electrical consumers such as, lights and rear window defroster, switched off.
-
Vehicles with automatic transmission, shift selector lever into position "P" or "N".
-
A/C switched off.
-
Ground (GND) connections between engine/transmission/chassis OK.
-
Ignition switched off.
Procedure
-
Remove the engine cover with air filter.
-
Remove the Ignition Coils with Power Output Stage N70, N127, N291, N292 electrical harness screws - 1 -.
-
Disconnect the Ignition Coils with Power Output Stage N70, N127, N291, N292 electrical harness connectors - arrows - from the Ignition Coils
with Power Output Stage N70, N127, N291, N292.
Checking voltage supply
-
Switch the ignition on.