Tester basics – Actron CP9087 User Manual

Page 7

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PULSE

9V BATTERY TEST: 1) SET RANGE TO HIGH.

2) SET FUNCTION TO OHMS. 3) DISCONNECT ALL LEADS.

O.K. IF TOPMOST TEST LIGHT IS ON. WEAK IF ANOTHER LIGHT IS ON.

RANGE

FUNCTION

IGNITION MODULE &

ENGINE SENSOR TESTER

IGNITION MODULE &

ENGINE SENSOR TESTER

TEST

RICH

LEAN

Select

LOW,

VOLTS

HIGH

LOW

POWER OFF

VOLTS

OHMS

FREQUENCY

SIGNAL

COMMON

TRIGGER

POWER 9V

Tester Basics

1-3

Allows test lead to probe sensor circuits when the sensor is
connected to vehicle wiring harness.

• Slide the “scooped” end of adapter next to circuit wire

entering rear of connector.

• Continue pushing adapter until it touches terminal inside

connector. (Slightly twisting adapter while pushing may
ease entry)

• Grasp open end of adapter with test lead clip. Keep

pushing on adapter to maintain circuit contact.

Caution: The “scooped” end of the
adapter will break if you bend it.

7

Backprobe

Adapter

2

3

4

1

6

9

8

7

5

To Sensor

To Computer

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