Toyota 4S Navigation System Installation
9 |
P a g e
Trouble Shooting
Please follow all the steps in this installation manual, failure to do so might
void the product warranty and damage the factory radio
Power
GPS Module has (2) led lights as indicators when system is power on.
Both led lights should lit with good power. If any of the light is
dimmed, you should check for B+ and ACC power sources.
Display
No Display
1.
There are two led lights at the GPS module to indicate data
and power. If led lights are OFF and radio is ON, check the
power fuse inside the black box from the main harness
2.
Check all wiring connectors for any loose connection
3.
Check all wiring shielding for any damage during the
installation process
4.
Check all wiring for any type of damage
5.
Check PCB ribbon cables for loose, misalignment, or
damage
No Touch Response
1.
Check both Radio mode and NAV mode for touch responses
2.
Check led lights for power and data indications
3.
Check 2in1 TP/LCD IN cable for any loose connection, or
damage
4.
Check PCB ribbon cables for loose, misalignment, or
damage
No GPS software loaded, touch screen alignment screen occurred
Check map SD card at GPS module, see any sign of missing,
loose, pop-out, misalignment, or damage
Sound
1.
Check all cable for connections to Audio Box for loose, or damage
2.
Check software volume settings, ensure volume is not muted
3.
Check connections at radio for loose, damaged wires
NTV-DOC228
