Control module
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Instrument unit
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Control module (electronic unit MIU)
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Odometer display
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The control module is integrated into the main instrument unit and has two connectors, one 12-pin (K12) and one 20-pin (K20).
The control module receives information from its own sensors and switches as well as from other systems. It processes the information and uses it to control instruments and lamps. Certain information is put on the bus.
When a fault occurs, the control module stores the diagnostic trouble code. In case of replacement, a control module for that specific car must be ordered and its programming will then be carried out at Saab Automobile. The odometer reading stored in the old control module and shown on the display must be programmed into the new control module.
The instrument unit contains gauges that are controlled by its own control module with information from other systems and its own sensors. Warning and indicator lamps controlled by both own sensors/switches as well as control modules from other systems. All warning, indicator and lighting lamps (not diodes) are replaceable.
The odometer and trip meter display has two number registers, one with six digits for showing the odometer reading and one with four digits for the trip meter reading.
The control module stores the distance driven and displays it. There is a lamp in the display which is replaceable.
Diagnostics
If an internal fault occurs in the main instrument unit's control module, diagnostic trouble code B1605 is set.This project is supported by memberships and donations. If you use this site, please consider Joining SCNA and/or making a donation.
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