Amplifier (AMP)

B2199-17-BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Amplifier monitors the input circuit voltage. The Amplifier sets a DTC if the input circuit voltage increases above a certain voltage.

For a detailed description of the Audio System. Audio And Video - Description.

For additional information regarding the operation of the Audio System. Audio And Video - Operation.

- When Monitored:
With the ignition on.

- Set Condition:
The Amplifier monitors the input voltage. This Diagnostic Trouble Code (DTC) is set when the input voltage is above 16 volts for greater than 15 seconds.





1. CHECK FOR POWERTRAIN CONTROL MODULE (PCM) DTCS
1. Using the scan tool, read the active PCM DTCs.

Are there any battery or charging system DTCs?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.

No

- Go To 2

2. TEST FOR AN INTERMITTENT CONDITION
1. Using the scan tool, record and erase the Amplifier DTCs.
2. Start the engine.
3. Allow the engine to idle for two minutes.
4. Using the scan tool, read the Amplifier DTCs.

Does the scan tool display: B2199-17-BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD?

Yes

- Replace Amplifier. Amplifier - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.