Speakers Inoperative - One or More. Chevrolet Camaro 2000

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Camaro 🢒 Body and Accessories 🢒 Entertainment 🢒 Speakers Inoperative - One or More

Speakers Inoperative - One or More General W53,W54,W55,UQ0

Step

Action

Value(s)

Yes

Did you review the system operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Turn the ignition to the RUN position.
Turn the radio on.

Do all of the speakers operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the amplifier connector.
Turn the ignition switch to the ACCY position.
Turn the radio on.
Insert a cassette or compact disc from J 39916-A .
Set the radio balance and fade controls to the detent (center) position.
Set the radio volume at the normal listening level.
Measure and record the AC voltage between the amplifier connector terminals E2 and E3 with a DMM while playing the combination test tone from the cassette or the compact disc. Refer to Circuit Testing in Wiring Systems.
Measure and record the AC voltage between the amplifier connector terminals E1 and F1.

Are the recorded voltages approximately the same?

Go to Step 4

Go to Step 6

Perform the following:

•	· Inspect for a poor connection at the amplifier, radio and appropriate speaker.

•	· Verify continuity of appropriate audio wires from the radio to the amplifier.

•	· Verify continuity of appropriate speaker wires from the amplifier to the speaker.

•	· Verify power and ground circuit voltages are present at the amplifier by measuring between the appropriate terminals on the amplifier connector.

•	· Repair wiring as necessary.

Did you find and correct the condition?

Go to Step 10

Go to Step 5

Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement .

Is the repair complete?

Go to Step 10

Backprobe the radio connector C1 between terminals 1 and 2 and record AC voltage with a DMM. Refer to Circuit Testing in Wiring Systems.
Backprobe the radio connector C1 between terminals 3 and 4 and record the AC voltage.

Are the recorded voltages approximately the same?

Go to Step 7

Go to Step 8

If the left speaker is inoperative, repair the open in the left front speaker output (-) circuit or the left front speaker output (+) circuit . Refer to Wiring Repairs in Wiring Systems.
If the right speaker is inoperative, repair the open in the right front speaker output (-) circuit or the right front speaker output (+) circuit . Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

If the left speaker is inoperative, inspect for the following conditions:

•	A short to battery voltage or a short to ground in the left front speaker output (-) circuit and the left front speaker output (+) circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

•	A poor connection at the radio connector C1 terminal 1 and terminal 2. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

If the right speaker is inoperative, inspect for the following conditions:

•	A short to battery voltage or a short to ground in the right front speaker output (-) circuit and the right front speaker output (+) circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

•	A poor connection at the radio connector C1 terminal 3 and terminal 4. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a short or a poor connection?

Go to Step 10

Go to Step 9

Replace the radio. Refer to Radio Replacement .

Did you complete the replacement?

Go to Step 10

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3

Speakers Inoperative - One or More Front Tweeter or Midrange UZ7,NW9,U59

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do the front tweeter speakers and the midrange speakers operate normally?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition switch to the ACCY position. Turn the radio on. Insert a cassette or compact disc from J 39916-A . Set the radio balance and fade controls to the detent (center) position. Set the radio volume at the normal listening level. Play the combination test tone from the cassette or CD. Backprobe the speaker assembly connector between terminals A and B (tweeter) or terminals C and D (midrange) with a DMM. Refer to Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	0V AC	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the inoperative speaker assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 12	Go to Step 5
5	Replace the speaker if the connection is OK. Refer to Radio Front Speaker Replacement . Did you complete the replacement?	--	Go to Step 12	--
6	Turn the ignition switch to the OFF position. Disconnect the amplifier connector. Probe the amplifier connector between the output (+) and output (-) circuits of the inoperative speaker with a DMM. Refer to Circuit Testing in Wiring Systems. Does the resistance measure within the specified range?	2-4ohms	Go to Step 7	Go to Step 10
7	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to battery voltage or a short to ground between the speaker assembly and the amplifier. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and repair a short?	--	Go to Step 12	Go to Step 8
8	Inspect for and repair a poor connection at the amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 12	Go to Step 9
9	Replace the amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement?	--	Go to Step 12	--
10	Inspect for and repair a poor connection at the speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 12	Go to Step 11
11	Repair an open in the speaker assembly output (+) circuit or the speaker assembly output (-) circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?	--	Go to Step 12	--
12	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More Both Rear W53,W54,W55,UQ0

Step

Action

Value(s)

Yes

Did you review the system operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Turn the ignition to the RUN position.
Turn the radio on.

Do both rear speakers operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the amplifier connector.
Turn the ignition switch to ACCY.
Turn the radio on.
Insert a cassette or compact disc from J 39916-A .
Set the radio balance and fade controls to the detent (center) position.
Set the radio volume at the normal listening level.
Play the combination test tone from the cassette or CD.
Use a DMM in order to measure the AC voltage between the amplifier connector terminals E6 and E7. Refer to Circuit Testing in Wiring Systems.
Measure the AC voltage between the amplifier connector terminals E4 and E5. Refer to Circuit Testing in Wiring Systems.

Record the voltage.

Are the voltage readings approximately the same?

Go to Step 4

Go to Step 6

Inspect for and repair a poor connection at the amplifier connector terminals E6 and E7 (left) or terminals E4 and E5 (right). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

Go to Step 10

Go to Step 5

Replace the amplifier. Refer to Radio Speaker Amplifier Replacement .

Did you complete the replacement?

Go to Step 10

Use a DMM in order to backprobe the radio connector C3 between terminal 19 and terminal 20. Refer to Circuit Testing in Wiring Systems.
Probe the radio connector C3 between the terminal 17 and terminal 18.
Record each voltage reading.

Are the voltages approximately the same?

Go to Step 7

Go to Step 8

For left inoperative speakers, repair the open in the left rear speaker output (-) circuit or the left rear speaker output (+) circuit. Refer to Wiring Repairs in Wiring Systems.
For right inoperative speakers, repair the open in the right rear speaker output (-) circuit or the right rear speaker output (+) circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

If the left speaker is inoperative, inspect for the following conditions:

•	A short to battery voltage or a short to ground in the left rear speaker output (-) circuit or the left rear speaker output (+) circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

•	A poor connection at the radio connector C3 terminal 19 and terminal 20. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

If the right speaker is inoperative, inspect for the following conditions:

•	A short to battery voltage or a short to ground in the right rear speaker output (-) circuit or the right rear speaker output (+) circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

•	A poor connection at the radio connector C3 terminal 17 and terminal 18. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a short or a poor connection?

Go to Step 10

Go to Step 9

Replace the radio. Refer to Radio Replacement .

Did you complete the replacement?

Go to Step 10

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3

Speakers Inoperative - One or More No Sound, Radio Oper Normally

Step

Action

Value(s)

Yes

Did you review the system operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Turn the ignition to the RUN position.
Turn the radio on.

Do all of the speakers operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the amplifier connector.
Turn the ignition switch to the ACCY position.
Turn the radio on.
Insert a cassette or compact disc from J 39916-A .
Set the radio balance and fade controls to the detent (center) position.
Set the radio volume at the normal listening level.
Play the combination test tone from the cassette or CD.
Backprobe the speaker assembly connector between terminals E6 and E7. Refer to Circuit Testing in Wiring Systems.
Record the voltage reading.

Is the voltage greater than the specified value?

0V AC

Go to Step 4

Go to Step 6

Perform the following:

•	Inspect for a poor connection at the amplifier, radio and appropriate speaker.

•	Verify continuity of appropriate audio wires from the radio to the amplifier.

•	Verify continuity of appropriate speaker wires from the amplifier to the speaker.

•	Verify power and ground circuit voltages are present at the amplifier by measuring between the appropriate terminals on the amplifier connector.

•	Repair wiring as necessary.

Did you find and correct the condition?

Go to Step 7

Go to Step 5

Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement .

Is the repair complete?

Go to Step 7

Replace the radio. Refer to Radio Replacement .

Did you complete the replacement?

Go to Step 7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3

Speakers Inoperative - One or More Front Tweeter Inop UQ0,W53,W54,W55

Step

Action

Value(s)

Yes

Did you review the system operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Turn the ignition to the RUN position.
Turn the radio on.

Do both front tweeter speakers operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the connector C240.
Turn the ignition switch to the ACCY position.
Turn the radio on.
Insert a cassette or compact disc from J 39916-A .
Set the radio balance and fade controls to the detent (center) position.
Set the radio volume at the normal listening level.
Play the tweeter test tone from the cassette or CD.
Use a DMM in order to measure the AC voltage between C240 connector terminal B and terminal C (left) or terminal F and terminal G (right). Refer to Circuit Testing in Wiring Systems.

Is the voltage greater than the specified value?

0V AC

Go to Step 4

Go to Step 5

Reconnect the connector C240.
Disconnect the inoperative speaker connector.
Use a DMM in order to measure the AC voltage between the speaker connector terminal A and terminal B on the harness side. Refer to Circuit Testing in Wiring Systems.

Is the voltage greater than the specified value?

0V AC

Go to Step 6

Go to Step 5

•	If the left front tweeter is inoperative, repair an open or a poor connection in the left front speaker output (-) circuit or the left front speaker output (+) circuit. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

•	If the right front tweeter is inoperative, repair an open or a poor connection in the right front speaker output (-) circuit or the right front speaker output (+) circuit. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 8

Inspect for and repair a poor connection at the speaker connector terminals A and B. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

Go to Step 8

Go to Step 7

Replace the speaker. Refer to Speaker Replacement .

Did you complete the replacement?

Go to Step 8

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3

Speakers Inoperative - One or More Front Mid Inop UZ7,NW9,W54,W55,U59

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do the front midrange speakers operate properly?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition switch to the ACCY position. Turn the radio on. Insert a cassette or compact disc from J 39916-A . Set the radio balance and fade controls to the detent (center) position. Set the radio volume at the normal listening level. Play the midrange test tone from the cassette or CD. Use a DMM in order to backprobe the inoperative speaker connector between terminal A and terminal B. Refer to Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	0V AC	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the inoperative speaker assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 10	Go to Step 5
5	Replace the speaker. Refer to Speaker Replacement . Did you complete the replacement?	--	Go to Step 10	--
6	Turn the ignition switch to the OFF position. Disconnect the amplifier connector. Use a DMM in order to measure the resistance between the amplifier connector terminals E15 and E16 (left) or terminals F6 and F7 (right). Refer to Circuit Testing in Wiring Systems. Are the resistances similar to the specified value?	2ohms	Go to Step 7	Go to Step 9
7	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to battery voltage, a short to ground, an open, or a poor connection. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and repair a short, an open, or a poor connection?	--	Go to Step 10	Go to Step 8
8	Replace the amplifier. Refer to . Did you complete the replacement?	--	Go to Step 10	--
9	Inspect for and repair a poor connection or an open in the speaker output (+) circuit and the speaker output (-) circuit. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and repair a poor connection or an open?	--	Go to Step 10	--
10	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More One Rear Mid Inop W54,W55,UZ7,NW9,U59

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do both rear midrange speakers operate normally?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition switch to the ACCY position. Turn the radio on. Insert a cassette or compact disc from J 39916-A . Set the radio balance and fade controls to the detent (center) position. Set the radio volume at the normal listening level. Play the midrange test tone from the cassette or CD. Use a DMM in order to backprobe the inoperative speaker connector between terminal A and terminal B. Refer to Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	0V AC	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the inoperative speaker assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 10	Go to Step 5
5	Replace the speaker. Refer to Speaker Replacement . Did you complete the replacement?	--	Go to Step 10	--
6	Turn the ignition switch to the OFF position. Disconnect the amplifier connector. Measure the resistance between the amplifier connector terminals F15 and F16 (left) or terminals F13 and F14 (right). Refer to Circuit Testing in Wiring Systems. Are the resistances similar to the specified value?	4ohms	Go to Step 7	Go to Step 9
7	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to battery voltage, a short to ground, an open, or a poor connection. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and repair a short, an open, or a poor connection?	--	Go to Step 10	Go to Step 8
8	Replace the amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement?	--	Go to Step 10	--
9	Inspect for a poor connection or an open in the speaker output (+) circuit or the speaker output (-) circuit. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and repair a poor connection or an open?	--	Go to Step 10	--
10	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More One Rear Inop W53,W54,W55,UQ0

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do all of the rear speakers operate normally?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition switch to the ACCY position. Turn the radio on. Insert a cassette or compact disc from J 39916-A . Set the radio balance and fade controls to the detent (center) position. Set the radio volume at the normal listening level. Play the combination test tone from the cassette or CD. Use a DMM in order to backprobe the inoperative speaker connector between terminal A and terminal B. Refer to Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	> 0V AC	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the inoperative speaker assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 10	Go to Step 5
5	Replace the speaker. Refer to Speaker Replacement . Did you complete the replacement?	--	Go to Step 10	--
6	Turn the ignition switch to the OFF position. Disconnect the radio connector C3. Probe the radio connector C3 between terminal 19 and terminal 20 (left) or terminal 17 and terminal 18 (right) in order to measure the resistance with a DMM. Refer to Circuit Testing in Wiring Systems. Is the resistance similar to the specified value?	10ohms	Go to Step 8	Go to Step 7
7	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to battery voltage, a short to ground, an open, or a poor connection. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did find and repair a short, an open, or a poor connection?	--	Go to Step 10	Go to Step 9
8	Inspect for and repair a poor connection at the radio connector C3. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 10	Go to Step 9
9	Replace the radio. Refer to Radio Replacement . Did you complete the replacement?	--	Go to Step 10	--
10	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More One Front Inop UQ0,W53,W54,W55

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do all of the front speakers operate normally?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn the ignition switch to the ACCY position. Turn the radio on. Insert a cassette or compact disc from J 39916-A . Set the radio balance and fade controls to the detent (center) position. Set the radio volume at the normal listening level. Play the combination test tone from the cassette or CD. Use a DMM in order to backprobe the inoperative speaker connector between terminal A and terminal B. Refer to Circuit Testing in Wiring Systems. Is the voltage greater than the specified value?	> 0V AC	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the inoperative speaker assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 8	Go to Step 5
5	Replace the speaker. Refer to Speaker Replacement . Did you complete the replacement?	--	Go to Step 8	--
6	Inspect for and repair an open or a poor connection in the left front speaker output (-) circuit or the right front speaker output (-) circuit. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you find and repair an open, a short, or a poor connection?	--	Go to Step 8	Go to Step 7
7	Repair the open or the poor connection in the left front speaker output (+) circuit or the right front speaker output (+) circuit. Refer to Circuit Testing or Testing for Intermittent Conditions and Poor Connections and Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair?	--	Go to Step 8	--
8	Operate the system to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More Both Lft FrInop W53,W54,W55,UQ0

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do both left front speakers operate properly?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Disconnect the radio connector C1. Measure the resistance between the radio connector C1 terminal 1 and terminal 2 with a DMM. Refer to Circuit Testing in Wiring Systems. Is the resistance less than the specified value?	10ohms	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the radio connector C1 terminal 1 and terminal 2. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 7	Go to Step 5
5	Replace the radio. Refer to Radio Replacement . Did you complete the replacement?	--	Go to Step 7	--
6	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and repair a short to ground or an open?	--	Go to Step 7	--
7	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More Both Rt Fr Inop UQ0,W53,W54,W55

Step	Action	Value(s)	Yes	No
1	Did you review the system operation and perform the necessary inspections?	--	Go to Step 2	Go to Symptoms - Entertainment
2	Turn the ignition to the RUN position. Turn the radio on. Do both right front speakers operate normally?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Disconnect the radio connector C1. Measure the resistance between the radio connector C1 terminal 3 and terminal 4 with a DMM. Refer to Circuit Testing in Wiring Systems. Is the resistance less than the specified value?	10ohms	Go to Step 4	Go to Step 6
4	Inspect for and repair a poor connection at the radio connector C1 terminals 3 and 4. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and repair a poor connection?	--	Go to Step 7	Go to Step 5
5	Replace the radio. Refer to Radio Replacement . Did you complete the replacement?	--	Go to Step 7	--
6	Inspect the speaker output (+) circuit and the speaker output (-) circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and repair an open or a short to ground?	--	Go to Step 7	--
7	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 3

Speakers Inoperative - One or More One Rear Tweeter Inop W53,W54,W55,UQ0

Step

Action

Value(s)

Yes

Did you review the system operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Turn the ignition to the RUN position.
Turn on the radio.

Do the rear tweeters operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the amplifier connector.
Turn the ignition switch to the ACCY position.
Turn the radio on.
Insert a cassette or compact disc from J 39916-A .
Set the radio balance and fade controls to the detent (center) position.
Set the radio volume at the normal listening level.
Play the combination test tone from the cassette or CD.
With a DMM backprobe the inoperative speaker connector between terminal A and terminal B on the harness side. Refer to Circuit Testing in Wiring Systems.

Is the voltage greater than the specified value?

0V AC

Go to Step 4

Go to Step 6

Inspect for and repair a poor connection at the speaker terminal A and terminal B. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

Go to Step 7

Go to Step 5

Replace the speaker. Refer to Speaker Replacement .

Did you complete the replacement?

Go to Step 7

•	If the left rear tweeter is inoperative, perform the following actions:

1.	Inspect for an open in the left rear speaker output (+) circuit. Repair if necessary. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

2.	If OK, repair the open in the left rear speaker output (-)circuit. Refer to Wiring Repairs in Wiring Systems.

•	If the right rear tweeter is inoperative, perform the following actions:

1.	Inspect for the open in the right rear speaker output (+) circuit. Repair if necessary. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.

2.	If OK, repair an open in the right rear speaker output (-) circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3