Tester Abbreviations

EI ABBREVIATIONS

ABBREVIATION DEFINITION

PIP Profile Ignition Pickup (ICM output signal)
IDM Ignition Diagnostic Monitor (Diagnostic signal to PCM)
SPOUT Spark Output (PCM spark control signal)
IGN GND Ignition Ground (Low current ground reference)
CKP- Crankshaft Position Sensor negative
CKP+ Crankshaft Position Sensor positive
CKP Shield Crankshaft Position Sensor shield
B+ Battery positive
GND or B- Battery negative
COIL PWR Vehicle power to coils
C1, C2, C3 Coil Drive (For coils 1, 2, and 3)
VPWR Vehicle Power

OVERLAY DESIGNATORS

PREFIX/ MEASUREMENT
SUFFIX LOCATION

Prefix "J "is a breakout box jack
Suffix "I" is at the ICM
Suffix "S" is at the sensor"
Suffix "C" is at the coil