DTC 14, No Ignition Signal: Notes
Igniter receives 5 volts from PCM. Igniter processes voltage then returns voltage to PCM as an ignition fail-safe signal. PCM also receives a 0.7 volt ignition signal when starter is being cranked. PCM uses these signals, along with others, to determine when to pulse injectors. DTC 14 will set if ignition fail-safe signal is not received at PCM for 4 successive ignition signals.
NOTE:
Test numbers refer to test numbers on diagnostic chart.
- Checks for 5-volt signal from PCM.
- Verifies 0.10-2.0 volt signal from PCM.
- Checks for power to igniter.
- Checks to see if voltage is supplied to distributor.
- Checks for an open in primary coil output control to igniter, for a faulty ignition coil and a faulty coil.
- Checks for an open in Black/Orange wire between junction block 1 and distributor or for a faulty junction block 1.
- Checks for an open in Red/Black wire or Black/Orange wire to ignition switch and for a faulty ignition switch.