Test P - Ignition Diagnostic Monitor
- Turn ignition off and wait 10 seconds. Deactivate Engine Running Self-Test. Connect volt/ohmmeter and enter Engine Running Continuous Monitor Test. While lightly tapping on TFI module and wiggling TFI harness connector, observe volt/ohmmeter for fault indication. If fault is indicated, disconnect TFI harness and inspect harness connector and TFI terminals. If okay, service TFI ignition system. If no fault indicated, go to next step.
- While still in Continuous Monitor Mode, observe volt/ohmmeter while doing the following: Beginning at TFI module, wiggle, shake or bend small sections of harness while working way to dash panel. Then repeating process from panel to ECA. If fault is indicated, isolate and repair problem and repeat Quick Test. If no fault indicated, go to next step.
- Turn ignition off and wait 10 seconds. Disconnect 60-pin connector at ECA and inspect. Service as required and repeat Quick Test. If connectors and terminals are okay, unable to duplicate fault at this time. Service TFI ignition system. Reconnect ECA.