Golf L4-1781cc 1.8L SOHC (ACC) Can (1993)
Ignition Coil: Testing and Inspection
Ignition Coil Power Output Stage, Checking
Ignition Coil Power Output Stage, checking
^ Camshaft Position (CMP) Sensor (G40) OK See: Camshaft Position Sensor/Testing and Inspection
^ Electrical check test step 19 OK See: Computers and Control Systems/Testing and Inspection/Pinout Values and Diagnostic Parameters
^ Ignition Coil OK See: Ignition Coil, Checking
Power supply, checking
-
Disconnect harness connector from Ignition Coil Power Output Stage (N157).
-
Switch hand multimeter (Fluke 83 or equivalent) to 20 Volt range.
-
Connect multimeter between terminals -1- and -3- of harness connector -4- using jumper wires from VW 1594 adapter kit.
-
Switch ignition ON.
^ Specification: approx. Battery Positive Voltage (B+)
-
Switch ignition OFF
Activation, checking
-
Disconnect Fuel Injector harness connector.
-
Connect VAG 1527B LED tester between terminals -2- and -3- of harness connector -4- using jumper wires from VW 1594 adapter kit.
-
Operate starter and check ignition signal from Mono-Motronic Control Module (ECM):
^ LED should flicker
If LED does NOT flicker:
-
Replace Mono-Motronic Engine Control Module (J257)
-
Reconnect Ignition Coil (N152) and Ignition Coil Power Output Stage (N157).