Did you perform the Cellular Telephone System Check?

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Go to Step 2

Go to Cellular Telephone System Check

1. Turn the ignition switch to OFF.
2. Disconnect the cellular telephone handset connector.
3. Disconnect the radio connector.
4. Using a J 39200 digital multimeter (DMM) set to the ohms scale, test for continuity between the following terminals:

•	The cellular telephone handset jumper connector terminal C

•	The radio connector terminal E9

Is the circuit continuity OK?

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Go to Step 4

Go to Step 3

Repair the open in CKT 372 (BLK/WHT).

Is the repair complete?

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Go to Cellular Telephone System Check

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Using a DMM set to the ohms scale, test for continuity between the following terminals:

Is the circuit continuity OK?

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Go to Step 6

Go to Step 5

Repair the open in CKT 367 (BRN/WHT).

Is the repair complete?

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Go to Cellular Telephone System Check

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Using a DMM set to the ohms scale, test for continuity between the following terminals:

Is the circuit continuity OK?

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Go to Step 8

Go to Step 7

Repair the open in CKT 368 (DK GRN/WHT).

Is the repair complete?

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Go to Cellular Telephone System Check

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Check the cellular telephone handset-to-harness connector jumper wiring for continuity.

Is the wiring OK?

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Go to Step 10

Go to Step 9

Replace the cellular telephone handset-to-harness connector jumper.

Is the repair complete?

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Go to Cellular Telephone System Check

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Test the cellular telephone operation using a known good cellular telephone handset.

Is the sound restored?

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Go to Step 11

Go to Step 12

Replace the cellular telephone handset. Refer to Cellular Telephone Replacement .

Is the repair complete?

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Go to Cellular Telephone System Check

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1. Inspect the cellular telephone module connector for poor terminal contact.
2. If the contact is OK, replace the cellular telephone module. Refer to Radio Frequency Booster and Bracket Assembly Replacement .

Is the repair complete?

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Go to Cellular Telephone System Check

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