Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2001 Mercury Sable, 2001 Mercury Mountaineer, 2001 Mercury Grand Marquis, 2001 Mercury Cougar, and 2001 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
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) 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) .