Service Manual

ELECTRICAL

6-20 Z580/Z593/Z595 Diesel Service Manual

Pull Coil Terminal Test Hold Coil Terminal Test

This test checks both the pulling coil and pulling coil

timer module (Fig. 684).

1. Disconnect the 3 terminal connector from the engine

stop solenoid wiring harness.

2. Remove the engine stop solenoid from the engine.

3. Connect a jumper lead from the pull coil (G) terminal

to the positive battery terminal.

4. Connect a jumper lead from the ground (A) terminal

to the negative battery terminal.

The plunger should retract into the solenoid body. With

the jumpers still connected to the battery terminals,

the plunger should extend out of the solenoid body

in approximately 1.2 seconds. If the plunger does not

retract and then extend, it is faulty.

Fig 684 3EEACAB1P007A

This test checks the holding coil.

1. Connect a jumper lead from the ground (A) terminal

to the negative battery terminal.

2. Connect a jumper lead from the holding (B) terminal

to the positive battery terminal.

3. Connect a jumper lead from the pull coil (G) terminal

to the battery positive terminal.

The plunger should pull into the solenoid body. Remove

the pull coil terminal (G) from the positive battery term-

inal. The plunger should remain pulled into the solenoid

body. If the plunger does not remain pulled into the

solenoid body, the engine stop solenoid is faulty.

A. Ground E. Battery Positive

B. Holding Coil Terminal F. Battery Negative

C. Switch for Pulling Coil G. Pulling Coil Terminal

D. Switch for Holding Coil