|
BOP |
……... |
Buick, Olds, Pontiac, Cadillac |
|
DIS |
……... |
GM Distributorless Ignition used on Buick V6 (one coil for every two spark plugs) |
|
ECU |
……... |
Engine Control Unit |
|
HEI |
……... |
GM High Energy Ignition |
|
IPU |
……... |
Inductive Pickup Ignition — Racing crank trigger ignitions and magnetic pickup distributors |
|
NC |
……... |
Normally Closed |
|
NO |
……... |
Normally Open |
|
PWM |
……... |
Pulse Width Modulated — Varying the duty cycle of a solenoid to control the volume or pressure in a hydraulic circuit |
|
SCU |
……... |
Speedometer Control Unit — (TCI® Part# 377300) uses the VSS signal to drive a standard style speedometer cable. |
|
TCC |
……... |
Torque Converter Clutch — controls the apply and release of the torque converter lock-up |
|
TCU |
……... |
Transmission Control Unit |
|
TISS |
……... |
Transmission Input Speed Sensor — magnetic pickup monitoring the forward clutch drum on a 4L80E/4L85E |
|
TOSS |
……... |
Transmission Output Speed Sensor — magnetic pickup monitoring output shaft speed |
|
TPS |
……... |
Throttle Position Sensor — relays throttle opening/closing to ECU and/or TCU |
|
VSS |
……... |
Vehicle Speed Sensor |
|
WOT |
……... |
Wide Open Throttle |