Actron 9040 User Manual

Inspect all vacuum hoses for:

* Correct routing. Refer to vehicle service manual, or

Vehicle Emission Control Information (VECI) decal

located in the engine compartment.

* Pinches and kinks.
* Splits, cuts or breaks

Inspect wiring for:

* Contact with sharp edges (a common problem).
* Contact with hot surfaces, such as exhaust

Inspect Electrical Connectors for:

* Corrosion on pins
* Bent or damaged pins.
* Contacts not properly seated in housing.
* Bad wire crimps to terminals.
* Problems with connectors are common in the engine

control system. Inspect carefully.

NOTE: Some connectors use a special grease on the contacts to prevent corrosion. Do

not remove. If required, apply more grease to the connector (available from vehicle

dealer).

Code Scanner Does Not Power Up

Make sure the DLC is properly connected to the vehicle connector. Verify pins are

clean and fully seated in connector.

The Code Scanner requires a minimum of 8 volts between pin 16 (12V) and pin 4

(Gnd) to power up. Use the flowchart to troubleshoot.

FRONT

OF CAR

HVAC

CRUISE

BRAKE BOOSTER

TO TRANS

MODE

EGR

VAC

REG

FUEL

PRESS

REG

EGR

VAC

REG

9RAC2LAB

Scan Tool does not

power up

Measure voltage

between pins 16 and 4

Above 8V?

Charge Battery

Contact Technical

Support

Battery fully

charged?

Measure resistance

between pin 4 and

chassis ground

YES

Less than

5Ω?

Open exists in power

circuit. Check for a blown

fuse or an open wire.

Refer to Service Manual

Repair ground

circuit. Refer to

Service Manual

YES