Jeep Wrangler
WRANGLER
z
19/19
Troubleshooting Guide
Symptom
Possible Cause
Remedy
1
System will not turn on
Missing or blown fuse at the battery
Insert or replace fuse
Radio’s Remote Turn-On wire may be
disconnected.
Verify that Remote Turn-On wire is
connected.
2
Volume is too loud with
aftermarket headunit.
Speaker level out is connected at the
T-Harness.
Ensure that the low level RCA adapters
are used in aftermarket headunit system
(refer to the corresponding wiring
diagram).
Amplifiers gain control has not been
properly adjusted.
Refer to the corresponding system
diagram.
3
Subwoofer sounds very
low.
Gain level may be down to the lowest
setting.
Adjust level to reccommended setting
(refer to the corresponding wiring
diagram).
Audio Phase may be reversed.
Ensure that the PHASE is set to 0˚.
4
One of the speakers has
no sound.
Disconnected pin or loose connection.
Check all connections to the speaker,
loose pins, disconnected terminals etc..
5
Airbag light is on
Failed to disconnect the battery while
working on the vehicle.
Disconnect the battery and re-connect
after 5 minutes. If problem is not solved,
the vehicle will have to be taken to a Jeep
dealer.
6
System turns on only on
radio source
Aftermarket Power Antenna wire is
connected to amp
Connect the Remote Turn-On wire (Blue/
White) to the Blue wire on the amplifier
harness.
7
No Sound and amplifier
light is blinking Red
Operating temperature is high.
Decrease the vehicle’s interior
temperature to a normal level. The
indicator color changes to blue.
8
No Sound and amplifier
light is solid Red
Amplifier circuits abnormal. An
electrical short has occurred, or supply
current is too high.
Turn off the power and correct the short.
Then turn on the unit and verify that the
indicator color has changed to Blue.
