Preparation For Test - Section 22

Preparation for Test:
1. Insert module specific module into HHT
2. Battery voltage 11 - 14 V,
3. Fuses ok,
5. Connect socket box with test cable according to connection diagram, Figures 1, 2 and 3 accordingly, for model being tested.
6. Review Connection and use of Test Equipment, Function Test, DTC Memory, Component Locations, Connection of Components, Preparation for Test, Version Coding and Pneumatic Test Program.
7. Review Electrical Wiring Diagrams.

Special Tools:

Test equipment;
Description Brand, model, etc.
Digital multimeter Fluke models 23, 77 III, 83, 85, 87


Connection Diagrams - Socket Box

Model 129:

Model 140:

Model 170:

001 PSE control module connector
002 Test cable (202 589 16 63 00)
003 Multimeter
050 Socket box (35-pole)
A37 PSE control module, combined functions


Connections - PSE control module




1 Connector 1 (control line PSE)
2 Connector 2 (voltage supply PSE)
3 Connector 3 (control line ATA)
4 Connector 4 (load connections ATA)