Diagnosis and Information Systems
Equipment: DISplus
Objectives
After completing this article you should be able to
- Compare and contrast the functions performed by the DISplus.
- Understand how to establish communication between the Diagnostic Head and the DISplus.
- Describe what components and connections establish a workshop LAN.
- Recognize the measurements and tests possible with the DISplus Measuring Systems.
Diagnostic Head
The DISplus uses a Diagnostic Head similar to the MoDiC III as the communication link between the DISplus and the vehicle electronics.
The Head receives operating power when the diagnosis cable is connected to the vehicle.
Identifying Diagnostic Head. Scheme 402
Communication between the DISplus and the Head can occur two ways
Scheme 403
Scheme 404
- Radio frequency (maximum 30 m distance)
- Hard wired to the network or DISplus (Scheme 403): Identifying Diagnosis Cable Input (Scheme 404): Identifying Signal Recorder Button
Identifying DISplus Cables And Leads. Scheme 405
Diagnostic Cable
20 and 16 pin cables are provided for connection between the vehicle diagnostic socket and Diagnostic Head.
Identifying 16 Pin OBD II Connector. Scheme 406
Identifying 20 Pin Underhood Connector. Scheme 407
Test Cables
Various test cables and the main power cable are connected to the rear of the DISplus through the conduit channel of the cable arm mast. The following test cables are stored on the arm.
Additional Test Cables
There are additional test cables connected to the rear of the DISplus on the measurement system board. The ends of the cables are color-coded for easy identification.
Identifying Additional Test Cable Sockets. Scheme 408
Secondary Ignition Test Cables
The inductive clip (1) is used when checking Secondary Ignition on vehicles that use a Distributor. It is clipped to the vehicle's distributor wire. The Flat lead (2) is used in conjunction with the secondary ignition adapter test kit (#12 7 040) when checking vehicles that have a Static Ignition system.
