Power Steering Control Unit

Power steering control unit is located behind instrument panel, right of steering column. On all models, using an analog voltmeter, measure voltage between ground specified terminal at power steering control unit. See POWER STEERING CONTROL UNIT VOLTAGE table. See Figure .

POWER STEERING CONTROL UNIT VOLTAGE ⁽¹⁾

Terminal No. ⁽²⁾ - Description

Volts

1 - Power Circuit (Ignition On)

2 - Ground Circuit

Zero

3 - Vehicle Speed Sensor Input Slow Speeds

Toggle Between 0-5

5 - RPM Signal Input

Engine Idling

5.2

2000 RPM

5.2

7 - P/S Solenoid Valve Output

Vehicle Speed

Zero MPH

4.4-6.6

62 MPH

2.5

Fail-Safe Mode

1-1.5

0-1500 RPM

4.4-6.6

1500-3000 RPM

3.0

Over 3000 RPM

2.0

⁽¹⁾	Check voltage between listed terminal and ground.

⁽²⁾	See illustration for terminal identification. See Figure .