Diagnostic Procedure
AMPLIFIER PRETEST SYMPTOM CHART
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Perform this test if the vehicle is experiencing a problem with no sound, or poor sound, quality from a speaker or channel. Turn the ignition on.Turn the radio on.With the DRBIII® enter Body, Audio Systems, Digital Audio Amplifier then System Tests.With the DRBIII® enter any one of the amplifier tests.
NOTE:
The Continuous Tone test will send a continuous tone to each speaker. This test will verify the integrity of an individual speaker channel, but will not display any fault messages.
NOTE:
The PCI Amplifier Test will detect a Software Checksum Failure, and will a display fault message.
NOTE:
The Identify EQ Test will return the current EQ mode, and will display a fault message.
NOTE:
The Input test will detect activity on the amplifier input channels. This test will verify the integrity of the input channels. Did the DRBIII® display a fault message?Yes --> Perform the appropriate corresponding test .Perform BODY VERIFICATION TEST - VER 1
.No --> If the DRB does not display a fault message and the vehicle is experiencing a problem with a speaker or channel, refer to SYSTEM WIRING DIAGRAMS
to help isolate a possible open in the wiring to the affected speaker or channel.Perform BODY VERIFICATION TEST - VER 1
. |
All |