RAM 1500 Van V8-5.2L VIN Y (1999)
Radio/Stereo: Testing and Inspection
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
CAUTION: The speaker output of the radio receiver is a "floating ground" system. Do not allow any speaker lead to short to ground, as damage to the
radio receiver may result.
1. Check the fused B(+) fuse in the junction block. If OK, go to Step 2. If not OK, repair the shorted circuit or component as required and replace the
faulty fuse.
2. Check for battery voltage at the fused B(+) fuse in the junction block. If OK, go to Step 3. If not OK, repair the open fused B(+) circuit to the
Power Distribution Center (PDC) as required.
3. Check the fused ignition switch output (ace/ run) fuse in the junction block. If OK, go to Step 4. If not OK, repair the shorted circuit or component
as required and replace the faulty fuse(s).
4. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output (ace/run) fuse in the junction block. If
OK, go to Step 5. If not OK, repair the open fused ignition switch output (ace/run) circuit to the ignition switch as required.
5. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Remove the radio receiver from the instrument
panel, but do not disconnect the wire harness connectors. Check for continuity between the radio receiver chassis and a good ground. There should
be continuity. If OK, go to Step 6. If not OK, repair the open ground circuit to ground as required.
6. Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output
(ace/run) circuit cavity of the left (gray) radio wire harness connector. If OK, go to Step 7. If not OK, repair the open fused ignition switch output
(ace/run) circuit to the junction block fuse as required.
7. Turn the ignition switch to the Off position. Check for battery voltage at the fused B(+) circuit cavity of the left (gray) radio wire harness
connector. If OK, replace the faulty radio receiver. if not OK, repair the open fused B(+) circuit to the junction block fuse as required.
