Step | Action | Yes | No |
|---|---|---|---|
1 | Did you review the cellular telephone operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms |
2 | Press and hold the PWR key on the cellular telephone handset for at least one second. Does the cellular phone turn ON and function properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Test the CD/PH fuse in the rear fuse block for an open. Is the fuse open? | Go to Step 12 | Go to Step 4 |
4 | Test the RDO/PH fuse in the rear fuse block for an open. Is the fuse open? | Go to Step 13 | Go to Step 5 |
5 | Test the battery positive voltage circuit from the rear fuse block to the cellular telephone module for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 6 |
6 | Test the battery positive voltage circuit from the rear fuse block to the cellular telephone handset for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 7 |
7 | Test the ignition positive voltage circuit from the rear fuse block to the cellular telephone handset for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 8 |
8 | Test the ground circuit of the cellular telephone handset for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 9 |
9 | Test the ground circuit of the cellular telephone module for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 10 |
10 | Inspect for poor connections at the harness connector of the cellular telephone handset. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 11 |
11 | Inspect for poor connections at the harness connector of the cellular telephone module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
12 | Repair the short to ground in the battery positive voltage circuit . Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
13 | Repair the short to ground in the ignition positive voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
14 | Test the cellular telephone operation using a known good cellular telephone handset. Does the cellular telephone system function properly? | Go to Step 15 | Go to Step 16 |
15 | Replace the cellular telephone handset. Refer to Cellular Telephone Replacement . Did you complete the replacement? | Go to Step 17 | -- |
16 | Replace the cellular telephone module. Refer to Radio Frequency Booster and Bracket Assembly Replacement . Did you complete the replacement? | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
