With Hand-Held Tester (HHT)

Special Tools:

Figure 1 - Connection Diagram, Hand-Held Tester (HHT):

Connection Diagram, Hand-Held Tester (HHT)
1 Connect HHT (087) with test cable (097) to data link connector (X11/4)
2. Ignition: ON
3. As per display in HHT;
a) read out/erase DTC memory
b) read out actual values
c) perform activations
d) program control modules
4. Disconnect HHT

NOTE: Observe system specific notes, which are described in the beginning of each chapter. Erase all stored faults which come about when tests or simulations are performed, upon completion of the repairs.

Prerequisites For Readout Of DTC Memory

WARNING:
- Risk of severe injury when touching ignition parts which produce high voltages. Do not touch ignition components.
- Persons with heart pacemakers are not to perform repairs on this type of ignition system.

NOTE: Readout via the impulse counter scan tool is not possible.

Preparation for Test:
1. Connect HHT with test cable to data link connector (X11/4), readout DTC fault codes.
2. Review section 22. Preparation For Test - Section 22
3. Review sections: 11, 21, 23, 24, 31, 33.
4. Perform Test and adjustment of engine, if necessary.
5. Ignition: ON