A/C System - Pulsar Amplifier Wiring Harness
87subaru02NUMBER 15-47-87
DATE 10-14-87
APPLICABILITY 1985 - 1987 STATION WAGON, SEDAN AND 3-DOOR COUPE
SUBJECT: ACCESSORY HITACHI AIR CONDITIONING AMPLIFIER SUB-HARNESS SOA332A319
You may encounter an accessory Hitachi air conditioned Station Wagon, Sedan or 3-Door Coupe in which the air conditioner compressor can operate with the mode switch in the "OFF" position.
Included in the A/C Kit is a short 6 pin wire harness (SOA332A319) which connects the OEM Wire Harness to the Pulsar Amplifier. This harness contains a diode that is located in the wire which comes from the A/C relay coil to the amplifier. When this harness is not installed during A/C installation, or if the diode has failed, it will allow power to travel back through the amplifier to the A/C relay and close the relay allowing power to the compressor with the mode switch in the "OFF" position. The illustration below will help in identifying the harness and its location.