244001994 - E6025 SUPPLEMENTARY AIR CONDITIONER OPERATIONAL DESCRIPTION

Operational Description

The supplementary air conditioner is activated by pressing a key located in climate control unit M070 - pin 4 -. Control unit M070 receives a power supply via the ignition and directly from the battery at pins 3 and 2. The ignition-operated power supply is protected by fuse F31, located in underfacia junction unit B002, and fuse F34, located in the optional underfacia junction unit B101.An activation control from pin 3 of control unit M070 reaches relays J132 and J121. Both relays are excited and supply battery power to switch H100. Relay J132 turns on the first speed automatically to supply fan N084 via resistor O031 - pins 1 and 3. For the second speed, the power supply flows through resistance load O030 - pins 2 and 3 -; while the power supply for the third speed is directed to motor N084 - pin 1 -.The direct battery power supply supplied to relays J121 and 132 is protected by fuse F56, located in optional junction unit B101.

The following figure does not show electrical components belonging to the supplementary Air Conditioner wiring circuit.