Omega B
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General Instructions / Safety Measures
· Never connect or disconnect wiring harness plugs to/from the transmission control unit or other control units with the ignition switched on.
· When other control units (e.g. ABS control unit) are disconnected, always delete their trouble codes and check them for correct functioning as well after completing test steps.
· Before charging or quick-charging, disconnect the battery from the vehicle electrical system.
· Never disconnect battery from vehicle electrical system with engine running.
· Never use the quick-charger for starting.
· Caution when touching voltage-bearing parts of the ignition system.
· Control units must be removed before welding work is carried out.
· At temperatures above +80 °C/+176 °F (drying oven), control units must be removed.
· Use only high-resistance voltage testers for checking.
· For test steps which involve connection of contacts of wiring harness plugs or control units to ground or battery voltage (+12 V), proceed with utmost care and concentration. Incorrectly selected contacts can lead to destruction of internal circuits in the control units in question.
· After reconnecting the battery, reprogram volatile memories. With radio coding and station programming, inform the customer about the decoding and the deleted station memories.
· If the automatic transmission has been removed, ensure that all ground connections have been correctly installed after assembly.
· When measuring resistance of grounded wiring harness plug terminals to the vehicle ground (body point), it may happen that the nominal value of "lower than 2 W" is not attained. In this case, disconnect the battery and select the body connection of the battery negative cable as the ground reference point.
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