Ascender 4WD V8-5.3L (2004)
Amplifier: Customer Interest
Audio System - Popping Noise From Speakers
TSB SB04-13-S001
Pop Noise Heard From The Rear Speakers When Rear
Seat Audio (RSA) Is Turned ON or OFF
ISSUE DATE: JULY 2004
Affected Vehicles
2004 Isuzu Ascender (US) models equipped with Speaker System Premium Performance Enhanced Audio (RPO UQA). Built Between November, 2003
through March, 2004.
Service Information
This bulletin is being revised to update Step 5 of the service procedure and supersedes bulletin SB04-05-S002.
Condition:
Some customers may comment on a pop type sound coming from the rear speakers. This noise occurs when the Rear Seat Audio (RSA) is turned on or
off.
Possible Cause:
The cause of this condition may be internal within the speaker amplifier.
When the TCCM is in the "sleep mode", it will not communicate with the class II bus or the Tech 2.
Correction:
Replace the radio speaker amplifier with P/N 8-15135-032-0.
Service Procedure
Refer to the Amplifier Replacement procedure in the Entertainment section of the Service Manual.
Parts Information
