Subaru SVX 1992 Manual page 1057

AUTOMATIC AIR CONDITI O NING SYSTEM [T11H21 4-7
1 . CHECK OUTPUT SIGNALS FOR AUTO AMPLI-
FIER.
1) Remove auto amplifier .
2) Set to self-diagnosis mode "STEP [3]" .
3) Measure voltage between auto amplifier connector .
Connector £r Terminal/Specified voltage :
(i17) No . 6 E+ - No . 5 0
Display shows 45 -1, 41/Approx . 10 V
(i17) No . 5 +~ - No . 6 E)
Display shows 42 -> 44/Approx . 10 V
a. Voltage is produced only when air mix door is
operating.
b . Since auto amplifier cyclically produces an output
of approximately 10 volts, analog circuit tester pointer
deflects between 0 and 5 volts .
tlg. zbu
2 . CHECK HARNESS CONNECTOR BETWEEN
AUTO AMPLIFIER AND AIR MIX DOOR MOTOR.
1) Disconnect auto amplifier and air mix door connec-
tor .
2) Measure resistance between auto amplifier and air
mix door connector.
Connector £r Terminal/Specified resistance :
(i17) No. 6 - (HU4) No. 5/0 f2
(i17) No. 5 - (HU4) No. 7/0 f2
3) Measure resistance between auto amplifier connec-
tor and body.
Connector £r Terminal/Specified resistance :
(i17) No. 6 - Body/1 Mfg min .
' (i17) No. 5 - Body/1 Mfg, min .
Fig. 251
123