Imperial Home Page -> Imperials by Year -> 1990 -> Repairs & Maintenance -> Wire Colors
Here is a listing of some of the wires involved with the computer electrical system:
Note: Some colors may vary from year to year.
Color |
Application |
Dark Green |
MAP Sensor Signal |
Tan/Black |
Coolant Temp Sensor Signal |
Red/White |
Battery "+" Voltage |
Black/Light Blue |
Sensor Ground |
Black/White |
Signal Ground |
Violet/White |
5 Volt Supply |
Orange |
8 Volt Supply |
Dark Blue |
Ignition 12 Volt Feed |
Black/Tan |
Power Ground |
Light Blue/Bright Red |
Injector #4 Driver |
Yellow/White |
Injector #3 Driver |
Tan |
Injector #2 Driver |
White/Dark Blue |
Injector #1 Driver |
Dark Blue/Tan |
Ig. Coil #2 Driver |
Dark Blue/Gray |
Ig. Coil #3 Driver |
Black/Gray |
Ig. Coil #1 Driver |
Dark Green |
Generator Field Driver |
Dark Red/Dark Blue |
TPS Signal |
Red/Light Green |
Speed Control Mode Sense |
Grey/Black |
Crank Position Sensor Signal |
Pink |
SCI Transmit |
Violet/Bright Red |
Bus "+" |
Bright Red |
AC Switch Sense |
Dark Blue/Orange |
Power Steering Pressure Sense |
White/Pink |
Brake Switch Sense |
Bright Red/Yellow |
Park/Neutral Switch Sense |
Dark Blue/Pink |
Rad Fan Control |
Black/Pink |
Check Engine Lamp |
Tan/Red |
Speed Control Vacuum Solenoid Control |
Dark Bllue/Orange |
AC Compressor Clutch Relay Control |
Grey/Yellow |
Electric EGR Transducer Solenoid |
Grey/Pink |
Service Reminder Indicator (SRI) |
Grey |
Injector #5 Driver |
Grey/Red |
Idle Air Control Motor #3 Driver |
Bright Red/White |
Idle Air Control Motor #1 Driver |
Black/Dark Green |
02 Sensor Signal |
Tan/Yellow |
Cam Position Sensor Signal |
Light Green |
SCI Receive |
White/Black |
Bus "-" |
White/Orange |
Vehicle Speed Sensor |
Dark Blue/Yellow |
Auto Shutdown Relay Control |
Pink/Black |
Evaporative Emission Solenoid Control |
Light Green/Red |
Speed Control Vent Solenoid Control |
Dark Green/Orange |
Auto Shutdown Relay Sensor |
Bright Red/Dark Blue |
Injector #6 Driver |
Violet/Black |
Idle Air Control Motor #4 Driver |
Yellow/Black |
Idle Air Control Motor #2 Driver |
This page was last updated on October 2, 2003. Send us your feedback, and come join the Imperial Mailing List - Online Car Club