Ford TRADER Workshop Manual page 816

AUDIO
T
AM Radio
I
No sound
I
Check CIGAR 15A fuse in fuse box
NO
Short-circuit in wire harness
• Normal
• Replace fuse after repairing harness
YES
Check ROOM 10A fuse in fuse box
. NO'
Short-circuit in wire harness
• Normal
• Replace fuse after repairing harness
YES
1. Turn engine switch to ACC position
2. Check UB wire voltage at radio connector
NO
Open-circuit in wire harness (Fuse-radio)
I
(12-pin connector)
• Repair harness
• Battery voltage
YES
Check L/R
wire voltage
at radio connector
NO
Open-circuit in wire harness (Fuse-Radio)
(12-pin connector)
• Repair harness
• Battery voltage
YES
1. Connect a jumper wire between radio unit and
ground
YES
Poor ground
2. Check that radio operates
I - -
• Repair ground
• Operate
NO
Check speaker operation (Refer to page T -90)
YES
Radio malfunction
• Operation normal • Replace radio
NO
Speaker malfunction
• Replace speaker
9TFOTX-01a
Bad sound quality
II
Check that antenna fully extended
• Fully extended
I
NOr--
1 - - - - - - - - - - - - - - - "
I
1 •
Extend fully
~----------------~~----------------~
JyES
Check sound quality when tuning again
• Sound quality normal .
I
YES
~
•
Audio system normal
~----------------~------------------~
Check speakers installation
• Tight
l
NO
l
YES
Cont'd
NO
Loose speaker
• Tighten speaker mounting
,
I
T-79