Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Radio/Audio System Schematics Connector End View Reference: Entertainment Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Is the radio reception clear? | -- | Go to Step 3 | |
3 |
Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 4 |
4 | Does poor or no reception occur only on AM? | -- | Go to Step 5 | Go to Step 6 |
5 |
Does the voltage measure near the specified value? | 12 V | Go to Step 6 | Go to Step 9 |
6 |
Important: Always zero out the DMM before taking a resistance measurement to ensure an accurate reading. Does the resistance measure greater than the specified value? | 0.20 ohms | Go to Step 10 | Go to Step 7 |
7 |
Important: Always zero out the DMM before taking a resistance measurement to ensure an accurate reading.
Does the resistance measure greater than the specified values? | RG-58/RG-59 Coax: 0.20 ohms RG-62/RG-62M Coax: 3.5 ohms | Go to Step 11 | Go to Step 8 |
8 |
Did you measure continuity? | -- | Go to Step 15 | Go to Step 12 |
9 | Test the antenna relay coil voltage circuit for an open, short to ground or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 13 |
10 | Test the antenna amplifier module case ground for an open or high resistance. Refer to Circuit Testing in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 14 |
11 | Inspect the antenna coaxial cable interconnects for a poor connection or corrosion. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 15 |
12 | Inspect for poor connections at the antenna amplifier 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 18 | Go to Step 16 |
13 | Inspect for poor connections at the 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 18 | Go to Step 17 |
14 | Test for an open or high resistance from the negative battery cable to body ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 18 | Go to Step 11 |
15 | Replace the antenna coaxial cable. Refer to Antenna Cable Replacement . Did you complete the replacement? | -- | Go to Step 18 | -- |
16 | Replace the antenna amplifier module. Refer to Radio Antenna Module Replacement . Did you complete the replacement? | -- | Go to Step 18 | -- |
17 | Replace the radio. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 18 | -- |
18 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
