Troubleshooting Hints

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
Radio Inoperative:
1. For checking a Speaker, use a "C" or "D" cell batters and momentarily connect and disconnect it across the circuits to that Speaker while listening for a slight popping sound or waiting for the cone of the Speaker to move in and out. If either happens, the Speaker and circuitry are usually OK.
2. Check DOME and CIG-RADIO Fuses with a fuse tester.
3. Check that G202 is clean and tight.
4. Check for a broken (or partially broken) wire inside the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
5. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections.