Ignition Systems
NOTE:
For additional information and descriptions see IGNITION SYSTEMS in the THEORY & OPERATION
article. Perform the Spark Output Check as outlined in the BASIC TESTING
article before entering these tests. Some ignition systems require that Quick Test procedure be performed prior to testing. This will retrieve trouble codes from the EEC-IV system. See the TESTS W/CODES
article in this section.
IGNITION SYSTEM ACRONYMS
| Acronym | (1) Definition | ||
|---|---|---|---|
| BAT+ or BAT (+) | Battery Positive | ||
| BAT- or BAT (-) | Battery Negative | ||
| BOB | Breakout Box | ||
| CID | Cylinder Identification | ||
| C1, C2, C3 | Coil Drive (Coils 1, 2 & 3) | ||
| DIS | Distributorless Ignition System | ||
| ECA | Electronic Control Assembly (EEC-Processor, Computer, Processor) | ||
| EDIS | Electronic Distributorless Ignition System | ||
| DPI | Dual Plug Inhibit (High Signal - Right Plugs Fire) (Low Signal - Both Sides Fire) | ||
| IDM | Ignition Diagnostic Monitor (Diagnostic Signal to ECA) | ||
| IGGND | Ignition Ground (Low Current Ground Reference) | ||
| KOEC | Key On Engine Cranking (Testing Condition | ||
| KOEO | Key On Engine Off (Testing Condition) | ||
| KOER | Key On Engine Running (Testing Condition) | ||
| PIP | Profile Ignition Pickup (Crankshaft Sensor Signal) | ||
| PWR GND | Power Ground Circuit to DIS Module | ||
| SAW | Spark Angle Word | ||
| SPOUT | Spark Output (ECA Spark Control Signal) | ||
| VPWR or VBAT | Battery Power or Battery Voltage | ||
| VRS or VR Sensor | Variable Reluctance Sensor (Crankshaft) | ||
|
|||
IGNITION SYSTEM IDENTIFICATION
| Application | System |
|---|---|
| Escort & Tracer 1.9L | EDIS |