D21 Hardbody XE King Cab 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
Radio/Stereo: Customer Interest
Audio - Poor or No FM Reception
Classification:
EL97-011
Reference:
NTB98-014
Date:
March 1, 1998
1995-97 TRUCK POOR/NO AUDIO RECEPTION
APPLIED VEHICLE:
1995-97 Truck (D21)
SERVICE INFORMATION
If a Truck exhibits poor or no FM audio reception, the tuner pack on the head unit may have failed due to condensation buildup on the audio head unit.
A countermeasure insulation foam is available to block any air flow leak from the HVAC duct and resolve this incident.
NOTE:
To prevent moisture buildup from occurring, install the countermeasure foam on all 1995-97 Trucks where service requires audio head unit removal
or replacement for any reason.
SERVICE PROCEDURE
1.
Follow the "Audio 1" diagnostic procedure to determine condition of head unit.
2.
Remove the audio head unit and the deck pocket per the service manual (section BT; Instrument Panel; removal steps 5-8) to reveal the HVAC
unit and duct (see Figure 1).
3.
Clean the surface of the HVAC unit (heater box) and duct with a clean shop rag to remove all dust and debris (see Figure 1). Make sure that the
surface of the unit is dry before applying foam.