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)
IGND or IGN GND Ignition Ground (Low current ground reference)
CKP- Crankshaft Position Sensor negative
CKP+ Crankshaft Position Sensor positive
CKP SHD Crankshaft Position Sensor shield
B+ Battery positive
GND or B- Battery negative
VPWR Ignition power to components
C1, C2, C3 Coil Drive (For coils 1, 2, and 3)
PWR GND Ground to ICM
COIL PWR Battery voltage to coil

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