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Home >> Geo >> 1994 >> Prizm Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> DIAGNOSTIC CODE CHARTS (PRIZM LSi) >> CODE 14 (PRIZM LSi) - NO IGNITION SIGNAL >> Notes

CODE 14 (PRIZM LSi) - NO IGNITION SIGNAL: Notes

Igniter receives 5 volts from PCM. Igniter processes voltage then returns voltage to PCM as a ignition fail-safe signal. PCM also receives a .7 volt ignition signal when starter is being cranked. PCM uses these signals to pulse injectors. Code 14 will set if ignition fail-safe signal is not present 4 successive times during cranking.

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. Checks for 5-volt signal from PCM.
  2. Verifies .10-2 volt signal from PCM.
  3. Checks for power to distributor.
  4. Checks for open in Black/Orange wire between junction block No. 1 and distributor or a faulty junction block No. 1.
  5. Checks for open in power feed to igniter, or a faulty ignition coil or igniter.
  6. Checks for open in Red/Black or Black/Orange wires to ignition switch and a faulty ignition switch.