Help & Troubleshooting
Check the following if an error message displays:
❒Verify ignition key is ON — not in the ACCESSORIES position.
❒Make sure the Scan Tool cable is securely connected to the vehicle’s DLC.
❒Examine the DLC closely and check for cracked or recessed pins, or for any substance that could prevent a good electrical connection.
❒9640 works on some vehicles with J1962 that are not OBDII.
❒Test for continuity between the DLC wiring and the computer. In an extreme case, there may be a broken wire.
❒With the KOEO, check for blown fuses. The computer and DLC usually use separate fuses. If the fuse for the computer is blown, data cannot be transmitted. The fuses may be located on the fuse block in the passenger compartment.
❒Make sure the computer has a good ground. If the computer case is grounded, then clean the connection and apply a conductive (dielectric) grease to the mating surfaces.
❒With the KOEO, verify the battery voltage is at least 8.0V; the minimum voltage to power the computer.
❒As a last resort, the computer may be defective. Refer to the vehicle service manual to diagnose the computer.
BATTERY REPLACEMENT
The Scan Tool requires six (6)
•Rechargeable batteries do not last as long alkaline types and are not recommended.
•
Follow these steps to replace the batteries:
1) Place the Scan Tool with the | SCREW | |
display facing down on a | ||
| ||
|
2)Remove the battery cover screw.
3)Slide the battery cover off.
4)Remove discharged batteries and properly discard.
5)Install new batteries — note polarity.
6)Slide battery cover on.
7)Install screw — do not over- tighten.
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COVER
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