Control Unit Testing: 323
CONTROL UNIT TESTING (323)
| Terminal |
Connection |
Voltage (When Operating Properly) |
| A & D |
Control System Tester |
12-13V |
| E |
Throttle Position Sensor "IDL" Terminal |
Zero (12-13V With Accelerator Pedal Depressed |
| G |
Clutch & Neutral Switch |
Zero (In Neutral) 12-13V (In Gear, Pedal Released |
| H |
Coolant Temperature Switch |
Zero (12-13V Below 63°F-17°C) |
| I |
Throttle Position Sensor "POW" Terminal |
12-13V (Zero With Accelerator Pedal Depressed |
| M |
Ignition Negative Terminal |
12-13V |
| S |
A/C Cutout Relay |
12-13V |
| U |
Ignitor (Black Connector) |
12-13V |
| V |
Idle-Up Solenoid E/L |
12-13V |
| W |
Control System Tester |
12-13V |
| 2A |
Atmospheric Pressure Sensor |
About V |
| 2B |
Airflow Meter "Vc" Terminal |
About 8V |
| 2C |
Ground |
Zero |
| 2D |
Oxygen Sensor |
Zero |
| 2E |
Airflow Meter "Vs" Terminal |
About 1.8V |
| 2H |
Atmospheric Pressure Sensor |
About 4V |
| 2I |
Coolant Thermosensor |
About .5V (Engine at Normal Operating Temperature) |
| 2J |
Airflow Meter "THA" Terminal |
About 1.6V |
| 2K |
Evaporation Solenoid (No. 2) |
12-13V |
| 2P |
Evaporation Solenoid |
12-13V |
| 2R |
Ground |
Zero |
| 3A |
Ground |
Zero |
| 3B |
Starter "ST" Terminal |
Zero (About 10V When Cranking Engine) |
| 3C & 3E |
Injectors |
12-13V (3C Injectors 3 & 4, 3E Injectors 1 & 2) |
| 3D |
Inhibitor Switch (Auto. Trans.) |
Zero (In "P" or "N"), 12-13V (All Others) |
| 3G |
Ground |
Zero |
| 3I |
Airflow Meter "Vb" Terminal |
12-13V |
| 3J |
Battery |
12-13V |