Diagnostic Aids

Perform this test when instructed during QUICK TEST or if directed by other test procedures. This test is used to diagnose a faulty Powertrain Control Module (PCM).

1. 1) KOEO & Continuous Memory DTC P0320: Erratic Ignition
   
   This DTC indicates that (2) successive erratic Profile Ignition Pulses (PIP) signals have occurred. Possible causes are:
   • Loose Wires &/Or Connectors
   • Short Circuit To Ground In Ignition Secondary System (Coil, Wires Or Plugs)
   • Incorrect 2-Way Radio Installation

   Ensure 2-way radio antenna and all harness connections are properly installed and routed. If any faults were present, repair as necessary. If vehicle will not start, go to TEST A, step  1). If fault is intermittent, go to TEST Z, step  1). If vehicle will start and no faults were present, check for missing PIP signal. Go to TEST JD, step  1).