User's Manual
LAUNCH CRP-HD
User's Manual
9
5 How to diagnose
5.1 Connections
5.1.1 Preparation
Normal testing conditions
Turn on the ignition key.•
The rated voltage of CRP-HD is 12V and the voltage of vehicle battery •
may be 12V or 24V.
The throttle should be in the closed position. •
Ignition timing and idle speed should be within specied range; water •
and transmission oil temperature are within normal working range
(water temperature is 90~110
℃
and transmission oil temperature is
50~80
℃
).
Select testing connectors
If CRP-HD is testing vehicles equipped with universal OBD II 16 PIN
diagnostic socket, please use the OBD II-16 diagnostic connector.
(For vehicles with non-OBD II 16 PIN diagnostic socket, a non-16 PIN
connector is required.)
5.1.2 DLC Location
The DLC (Data Link Connector or Diagnostic Link Connector) is the
connector where diagnostic code readers interface with the vehicle’s
on-board computer. The DLC (Data Link Connector or Diagnostic Link
Connector) is usually located 12 inches from the center of the instrument
panel (dash), under or around the driver’s side for most vehicles. If Data
Link Connector is not located under dashboard, a label should be there
telling location. For some Asian and European vehicles, the DLC is
located behind the ashtray and the ashtray must be removed to access
the connector. If the DLC cannot be found, refer to the vehicle’s service
manual for the location.
Near the center
of dashboard
Fig. 5-1
5.1.3 Vehicle Connection
The method used to connect the diagnostic connector to a vehicle’s DLC
depends on the vehicle’s conguration as follows:
Follow the steps mentioned below to connect OBD II vehicle:
Locate vehicle’s DLC socket. 1.
Plug the DB15 connector of OBD II diagnostic connector into diagnostic 2.