Important: A short to ground will cause an open fuse(s).Before performing this diagnostic procedure, inspect the fuse(s) for an open.

Observe the IP of the vehicle.

Is the cassette player incorporated into the radio?

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Go to Step 2

Go to Step 3

Inspect the cassette player for an obstruction through the cassette door.

Is an obstruction present?

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Go to Step 4

Go to Step 8

1. Turn the ignition switch to the ACCY or the ON position.
2. Turn the radio power switch ON.
3. Using the J 39200 DMM, backprobe the radio connector C3.
4. Measure the voltage between terminal 7 and ground.

Is the voltage measured at the specified value?

B+

Go to Step 5

Go to Step 8

Notice: Improper removal may damage tape player.

1. Remove the obstruction.
2. Inspect and clean the moving components and the cassette head or use a cleaning cassette.
3. Insert the diagnostic test tape from the J 39916-A .

Does the test tape operate?

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Go to Audio Preliminary Diagnosis

Go to Step 8

1. Using the J 39200 DMM, backprobe the radio connector C3.
2. Measure the voltage between terminal 7 and terminal 13.

Is the voltage measured at the specified value?

B+

Go to Step 6

Go to Step 8

1. Using the J 39200 DMM, backprobe the radio connector.
2. Measure the voltage between terminal 15 and ground.

Is the voltage measured at the specified value?

B+

Go to Step 7

Go to Step 8

1. Using the J 39200 DMM, backprobe the cassette player connector.
2. Measure the voltage between terminal 7 and ground.

Is the voltage measured at the specified value?

B+

Go to Step 9

Go to Step 10

Remove the radio for repair. Refer to Radio Replacement .

Is the repair complete?

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Go to Audio Preliminary Diagnosis

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1. Using the J 39200 DMM, backprobe the cassette player.
2. Measure the voltage between terminal 15 and ground.

Is the voltage measured at the specified value?

B+

Go to Step 11

Go to Step 12

Repair the open in CKT 314 between the cassette player and the radio. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Audio Preliminary Diagnosis

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1. Turn the ignition switch to the OFF position.
2. Disconnect the cassette player connector.
3. Disconnect radio connector C3.
4. Using the J 39200 DMM, measure the resistance between terminal 13 of the radio connector C3 and terminal 13 of the cassette player connector.

Is the resistance measured within the specified range?

0-2 ohms

Go to Step 13

Go to Step 14

Repair the open in CKT 1740 between the cassette player and the radio. Refer to Wiring Repair in Wiring Systems.

Is the repair complete?

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Go to Audio Preliminary Diagnosis

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Using the J 39200 DMM, measure the resistance between terminal 12 of radio connector C3 and terminal 12 of the cassette player connector.

Is the resistance measured within the specified range?

0-2 ohms

Go to Step 15

Go to Step 16

Repair the open in CKT 151 between the cassette player and the radio. Refer to Wiring Repair in Wiring Systems.

Is the repair complete?

--

Go to Audio Preliminary Diagnosis

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Remove the cassette player for repair. Refer to Remote Tape Player Replacement .

Is the repair complete?

--

Go to Audio Preliminary Diagnosis

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Repair the open or short to ground in CKT 1405 between the cassette player and the radio. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Audio Preliminary Diagnosis

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