Vehicle Connection (For Commercial Vehicle/Gasoline & Diesel Vehicle Edition); Diagnostic Trouble Codes (Dtcs) - LAUNCH TECH X-431 PRO5 User Manual

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B. Via Cigarette lighter cable (optional): Connect one end of the cigarette lighter cable to the power jack of the OBD I adaptor
box, and the other end to the cigarette lighter receptacle.
4.3.3 Vehicle connection (For Commercial Vehicle/Gasoline & Diesel Vehicle Edition)
The method used to connect the VCI module to a vehicle's DLC depends on the vehicle's configuration as follows:
For OBD II vehicles, connect the SmartLink C to vehicle's DLC directly via the OBD II extension cable.
For non-OBDII vehicles, proceed as follows:

4.4 Diagnostic Trouble Codes (DTCs)

OBD II Diagnostic Trouble Codes are codes that are stored by the on-board computer diagnostic system in
response to a problem found in the vehicle. These codes identify a particular problem area and are intended to
provide you with a guide as to where a fault might be occurring within a vehicle. DO NOT replace parts based only
on DTCs without first consulting the vehicle's service manual for proper testing procedures for that particular
system, circuit or component.
OBD II Diagnostic Trouble Codes consist of a five-digit alphanumeric code.
• The 1st character is a letter (B, C, P or U). It identifies the "main system" where the fault occurred (Body,
Chassis, Powertrain, or Network).
• The 2nd character is a numeric digit (0 thru 3). It identifies the "type" of code (Generic or
Manufacturer-Specific).
Notes:
• Generic DTCs are codes that are used by all vehicle manufacturers. The standards for generic DTCs, as well as their
definitions, are set by the Society of Automotive Engineers (SAE).
(For Passenger Cars)
(For Commercial Vehicles)
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X-431 PRO5 User Manual