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 module connector.
3. Turn the ignition switch to RUN.
4. Using a J 39200 digital multimeter (DMM), measure the voltage between the following components:

4.1.	The cellular telephone module connector terminal 8.

4.2.

Ground.

Is the measured voltage in the specified range?

10-15V

Go to Step 3

Go to Step 5

Inspect the coaxial cable connectors for poor terminal contact.

Is the coaxial cable connector terminal contact OK?

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Go to Step 5

Go to Step 4

Repair the coaxial cable connector terminal contact.

Is the repair complete?

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Go to Step 12

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Check the cellular telephone handset-to-cellular telephone module cord wiring for continuity.

Is the wiring OK?

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Go to Step 7

Go to Step 6

Replace the cellular telephone handset-to-cellular module cord.

Is the repair complete?

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Go to Step 12

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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 9

Go to Step 8

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

Is the repair complete?

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Go to Step 12

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

Is the voice now transmitted?

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Go to Step 10

Go to Step 11

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

Is the repair complete?

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Go to Step 12

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1. Inspect the cellular telephone module connector for poor terminal contact.
2. If 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 Step 12

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1. Make sure any components removed during diagnosis are installed in place and that all connectors are connected.
2. Repeat the system check. Refer to Cellular Telephone System Check .

Is the system check complete?

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System OK

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