1

Did you review the Radio/Audio Description and perform the necessary inspections?

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Go to Step 2

Go to Diagnostic Starting Point

1. Disconnect the suspect speaker.
2. Connect a 1.5 volt battery across the cavities of the suspect speaker.

Is there a pop noise from the speaker?

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Go to Step 4

Go to Step 3

Replace the speaker.

Refer to Rear Pillar Speaker Replacement Radio Rear Side Door Speaker Replacement

Did you complete the replacement?

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Go to Step 42

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Check if the vehicle is equipped with rear radio control.

Is the vehicle equipped with rear radio control?

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Go to Step 20

Go to Step 5

Check if the vehicle is equipped with a sub-woofer amplifier.

Is the vehicle equipped with a sub-woofer amplifier?

--

Go to Step 9

Go to Step 6

1. Turn the ignition switch to the ACC or the RUN position.
2. Turn the radio ON.
3. Tune the radio to a strong signal.
4. Using the balance control on the radio, balance the radio signal between the left and the right rear speakers.

Is the left and right rear speakers inoperative or distorted?

--

Go to Step 19

Go to Step 7

Check for an open or a short in the following circuits between the radio and the rear speakers:

For the left side speakers.

For the right side speakers.

Refer to Circuit Testing in Wiring Systems.

Did you find a short or open?

--

Go to Step 8

Go to Step 19

Repair the open or short in the following circuits between the radio, the rear speakers and the sub-woofer amplifier (if equipped):

For the left side speakers.

For the right side speakers.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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1. Disconnect the sub-woofer amplifier.
2. Turn the ignition switch to the ACC or the RUN position.
3. Turn the radio ON.
4. Tune the radio to a strong signal.

Are both the rear speakers inoperative or distorted?

--

Go to Step 19

Go to Step 10

Using the balance control on the radio, balance the radio signal between the left and right rear speakers.

Is the left or right rear speaker inoperative or distorted?

--

Go to Step 7

Go to Step 11

Connect a test lamp from the sub-woofer amplifier connector CKT 840 (ORN) to ground.

Does the test lamp illuminate?

--

Go to Step 12

Go to Step 13

Connect a test lamp from the sub-woofer connector CKT 840 (ORN) to CKT 1350 (BLK).

Does the test lamp illuminate?

--

Go to Step 15

Go to Step 14

Repair the open in CKT 840 (ORN) between sub-woofer amplifier connector and S322. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Repair the open in CKT 1350 (BLK) between sub-woofer amplifier connector and S319. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Using a DMM check for voltage from CKT 116 (YEL) B3 to CKT 199 (BRN) A3 for the left side speakers, and CKT 46 (DK BLU) A4 to CKT 115 (LT BLU) B4 for the right side speakers.

Is voltage present?

--

Go to Step 16

Go to Step 8

Check for an open or a short in the following circuits between the sub-woofer speaker and the sub-woofer amplifier:

For the left side speakers.

For the right side speakers.

Refer to Circuit Testing in Wiring Systems.

Did you find a short or open?

--

Go to Step 17

Go to Step 18

Repair the open or short in the following circuits between the sub-woofer speaker and the sub-woofer amplifier:

For the left side speakers.

For the right side speakers.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Service the sub-woofer amplifier. Refer to Radio Speaker Amplifier Replacement .

Did you complete the replacement?

--

Go to Step 42

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Service the radio. Refer to Radio Replacement

Did you complete the replacement?

--

Go to Step 42

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1. Turn the ign switch to ACC or RUN position.
2. Using a test lamp, backprobe CKT 43 (YEL) terminal A8 at the rear radio control module to ground.

Does the test lamp illuminate?

--

Go to Step 22

Go to Step 21

Repair the open in CKT 43 (YEL) between the rear radio control module and S246.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the replacement?

--

Go to Step 42

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Connect a test lamp from rear radio control module CKT 43 (YEL) to CKT 550 (BLK).

Does the test lamp illuminate?

--

Go to Step 24

Go to Step 23

Repair the open in CKT 550 (BLK) between the rear radio control module and S315. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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1. Disconnect the radio C2 connector.
2. Using a DMM test for voltage at CKT 1011 (LT GRN) cavity 13 connector C2.
3. Test for voltage with the rear radio control module power button depressed and held.

Is voltage within specified value?

3.2 - 3.8 V

Go to Step 26

Go to Step 25

1. Disconnect the rear radio control module.
2. Using a DMM test CKT 1011 (LT GRN) for continuity.

Is there continuity?

--

Go to Step 29

Go to Step 27

1. Connect a fused jumper from CKT 1011 (LT GRN) to the radio cavity 13 .
2. Connect a DMM from cavity 12 at the radio to ground.

Is voltage present?

--

Go to Step 28

Go to Step 19

Repair the open in CKT 1011 (LT GRN) between the rear radio control module and the radio. Refer to Wiring Repairs in Wiring Systems.

Did you complete the replacement?

--

Go to Step 42

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1. Disconnect the rear radio control module.
2. Using a DMM test CKT 314 (PNK) for continuity.

Is there continuity?

--

Go to Step 31

Go to Step 30

Service the rear radio control module. Refer to Rear Seat Audio Control Replacement .

Did you complete the replacement?

--

Go to Step 42

--

Repair the open in CKT 314 (PNK) between the rear radio control module and the radio. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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1. Reconnect the radio and the rear radio control module.
2. Disconnect the sub-woofer amplifier.

Turn the ignition switch to the ACC or the RUN position.

3. Turn the radio ON.
4. Tune the radio to a strong signal.

Are both the rear speakers inoperative?

--

Go to Step 19

Go to Step 32

Using the balance control on the radio, balance the radio signal between the left and right rear speakers.

Is the left or right rear speaker inoperative or distorted?

--

Go to Step 33

Go to Step 35

Check for an open or a short in the following circuits between the radio and the rear speakers:

For the left side speakers.

For the right side speakers.

Refer to Circuit Testing in Wiring Systems.

Did you find a short or open?

--

Go to Step 34

Go to Step 40

Repair the open or short in the following circuits between the radio, the rear speakers and the sub-woofer amplifier (if equipped):

For the left side speakers.

For the right side speakers.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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1. Disconnect the sub-woofer amplifier.
2. Connect a test lamp from the sub-woofer amplifier connector CKT 840 (ORN) to ground.

Does the test lamp illuminate?

--

Go to Step 36

Go to Step 37

Connect a test lamp from the sub-woofer connector CKT 840 (ORN) to CKT 1350 (BLK).

Does the test lamp illuminate?

--

Go to Step 39

Go to Step 38

Repair the open in CKT 840 (ORN) between sub-woofer amplifier connector and S322. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Repair the open in CKT 1350 (BLK) between sub-woofer amplifier connector and S319.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Using a DMM check for voltage on the following circuits:

Is voltage present?

--

Go to Step 16

Go to Step 41

Using a DMM test for continuity between the following cavities:

Is there continuity?

--

Go to Step 19

Go to Step 29

Repair the open or short in the following circuits between the radio, the rear speakers and the sub-woofer amplifier (if equipped):

For the left side speakers.

For the right side speakers.

Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 42

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2