Amplifier Pretest

*AMPLIFIER PRETEST

For a complete wiring diagram Consult Diagrams/Electrical





Diagnostic Test

1. AMPLIFIER PRETEST

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 scan tool enter Body, Audio Systems, Digital Audio Amplifier then System Tests.
With the scan tool 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 display a 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 scan tool display a fault message?

Yes

- Perform the appropriate corresponding test.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- If the scan tool does not display a fault message and the vehicle is experiencing a problem with a speaker or channel, refer to the wiring diagrams in Diagrams/Electrical to help isolate a possible open in the wiring to the affected speaker or channel.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test.