Speakers Inoperative - Subwoofer - GMC Chevrolet Camaro 1998 Service Manual

Body and Accessories Entertainment 8-239
Speakers Inoperative - Subwoofer
Step
Action Value(s)
Yes No
Was the entire Radio/Audio System Check performed? Go to
)
1
- Radio/Audio
Go to Step 2
System Check
1. Turn the ignition switch to the ACCY position.
2. Turn the radio on.
3. Insert a cassette or compact disc from J 39916
4. Set the radio balance and fade controls to the detent
(center) position.
2
5. Set the radio volume at the normal listening level.
3VAC
6. Play the combination test tone from the cassette
or CD.
7. Backprobe with a DMM between terminal A and
terminal B of the inoperative speaker.
Does the meter reading vary above 3V AC? Go to Step 3 Go to Step 4
1. Inspect for a poor connection at the speaker.
2. Replace the speaker if the connection is OK. Refer to
3
Speaker Replacement (Coupe) or Speaker
-
-
Replacement (Convertible).
Is the repair complete? Go to Step 7
1. Turn the ignition switch to the OFF position.
2. Disconnect the amplifier connector.
4
3. Probe the amplifier connector between the feed (+)
2-4Q
and return (-) circuits of the inoperative speaker with
a DMM.
Is the resistance approximately 2-4Q? Go to Step 5 Go to Step 6
1. Inspect the speaker feed and the return circuits for a
short to B+ or ground.
\.
2. Inspect for a poor connection at the amplifier.
5
3. Replace the amplifier if the connections are OK.
-
-
Refer to Amplifier Replacement (Coupe) or Amplifier
Replacement (Convertible).
Is the repair complete? Go to Step 7
1. Inspect for a poor connection at the speaker.
6
2. Repair open in the speaker feed or the return circuit
-
-
between the speaker and the amplifier.
Is the repair complete? Go to Step 7
1, Turn the ignition switch to the OFF position.
Go to
7
2. Reconnect all connectors/components removed.
-
Radio/Audio
-
Have all the repairs been made? System Check