NS7 - Ignition Control Circuit Check
- Connect DRB II to engine harness connector. Connect analog voltmeter to ignition coil negative terminal and ground. Put system in ATM Test "01". If voltmeter reading is pulsating between 10-14 volts, replace ignition coil.
- If voltmeter reading is not pulsating, but reads battery voltage, go to step 3). If voltmeter reading is pulsating between 5-10 volts, replace ignition coil. If voltmeter reading is pulsating between 0-2 volts, go to step 4).
- Turn ignition off. Disconnect 14-pin connector from SMEC. Connect ohmmeter to ignition coil negative terminal and 14-pin connector cavity No. 12. If there is not continuity, repair Black/Yellow wire in cavity No. 12 for an open circuit. If there is continuity, replace SMEC for a defective power board. Before replacing SMEC, ensure terminal in connector cavity No. 12 is not damaged causing a poor connection.
- With DRB II connected to engine harness connector, turn ignition off. Disconnect wire from negative side of ignition coil. Connect voltmeter to ignition coil negative terminal and ground. Put system in ATM Test "01". If voltmeter reading is between 0-2 volts, replace ignition coil.
- If voltmeter reading is greater than 10 volts, turn ignition off. Disconnect 14-pin connector from SMEC. Connect ohmmeter to 14-pin connector cavity No. 12 and ground. If there is not continuity, replace SMEC for a defective power board. If there is continuity, repair Black/Yellow wire to cavity No. 12 for a short circuit to ground.