Operator`s manual
DIAGNOSTIC TOOLSET DESCRIPTION 19
DATA LINK CONNECTOR AND CABLE
Communication between the Tester and the vehicle’s electronic systems is through the 
heavy duty 14-pin to 26-pin Data Link Connector (DLC) cable that is connected to the 
bottom center of the Tester. Various adapters or adapter cables are used to connect the 14-
pin end of the DLC cable to the vehicle’s Check Connector, TDCL, or DLC3 (M-OBD).
POWER SOURCES
The Tester is intended to be powered from the vehicle’s battery via the cigarette lighter 
socket, or directly from the battery with the Battery Adapter Cable. The Tester may also 
be powered in the following ways:
• By the DLC1 (Check Connector) cable when the DLC1 cable is connected to the 
underhood DLC1. 
• By the DLC3 (OBD-II Connector) cable when the DLC3 cable is connected to the 
DLC3 on the vehicle.
• By the AC/DC power supply.
• By the rechargeable battery pack. Powering the Tester with the battery pack is 
described below. 
BATTERY BACKED OPERATION
A rechargeable NiCad battery pack is provided to power the Tester under the following 
conditions: 
• When the vehicle ignition is off.
• While the engine is cranking.
• Temporary off-vehicle “stand-alone” usage.
Although the Tester will operate on the battery pack, it is recommended that the Tester be 
connected to the vehicle’s 12-volt power supply during testing.
See the Tester Operator’s Manual for battery charging and replacement instructions. 
BATTERY BACKED MEMORY
Tester configuration and data that has been captured during testing are retained in the 
Tester battery backed memory under power from an onboard lithium battery. This battery 
should last up to 2 years from the time of purchase. 
See Tester Operator’s Manual for battery replacement instructions.










