Step | Action | Yes | No | ||||||||
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Schematic Reference: Navigation System Schematics DEFINITION: When using the navigation radio TV function, the TV reception, TV picture and/or TV sound, is poor or inoperative. | |||||||||||
1 | Did you perform Diagnostic System Check - Navigation System? | Go to Step 2 | |||||||||
2 |
Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||||
3 |
Did you find and correct the condition? | Go to Step 14 | Go to Step 4 | ||||||||
4 |
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Is voltage present? | Go to Step 6 | Go to Step 5 | ||||||||
5 | Test each of the following circuits for an open or a short to ground.
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 7 | ||||||||
6 | Test the TV signal circuit between the TV antenna module and the navigation radio for an open, a short to ground or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 7 | ||||||||
7 | Test the amplified TV antenna signal circuit between each TV antenna amplifier and the TV antenna module for an open, a short to ground or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 14 | Go to Step 8 | ||||||||
8 | Inspect for poor connections at the harness connector of the TV antenna amplifiers. 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 14 | Go to Step 9 | ||||||||
9 | Replace the TV antenna amplifiers. Refer to Television Antenna Amplifier Replacement . Did you find and correct the condition? | Go to Step 14 | Go to Step 10 | ||||||||
10 | Inspect for poor connections at the harness connector of the TV antenna 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 14 | Go to Step 11 | ||||||||
11 | Replace the TV antenna module. Refer to Television Antenna Module Replacement . Did you find and correct the condition? | Go to Step 14 | Go to Step 12 | ||||||||
12 | Inspect for poor connections at the harness connector of the navigation radio. 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 14 | Go to Step 13 | ||||||||
13 | Replace the navigation radio. Refer to Radio Replacement in Entertainment. Did you complete the replacement? | Go to Step 14 | -- | ||||||||
14 |
Is the picture strong? | Go to Step 3 |