B1464-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER
B1464-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER
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For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
With the ignition on.
Radio volume at 25 or higher.
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Set Condition:
The Amplifier detects that the output circuits are shorted together.
Possible Causes |
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| (X209) LEFT INSTRUMENT PANEL (I/P) (+) CIRCUIT SHORTED TO THE (X299) LEFT INSTRUMENT PANEL (I/P) (-) CIRCUIT |
| LEFT INSTRUMENT PANEL (I/P) SPEAKER |
| AMPLIFIER |
1. CHECK FOR AN INTERMITTENT CONDITION
| 1. | Turn the ignition on. |
| 2. | Using the scan tool, record and erase the Amplifier DTCs. |
| 3. | Cycle the ignition switch from on to off, wait five seconds and then back to on. |
| 4. | Turn the Radio on and set the volume to 25. |
| 5. | Adjust the speakers to the front and center. |
| 6. | Using the scan tool, read the active Amplifier DTCs. |
Does the scan tool display active: B1464-CHANNEL 1 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?
Yes
- Go To 2
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. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).
2. CHECK THE OPERATION OF THE LEFT I/P SPEAKER
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| 1. | Turn the ignition off. |
| 2. | Disconnect the Left I/P Speaker harness connector. |
| 3. | Measure the resistance of the speaker between the two terminals. |
| NOTE: | The graphic shows the connector for reference only. Measure at the speaker terminals. |
Is the resistance of the speaker less than 1 Ohm?
Yes
- Replace the Left I/P Speaker in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).
No
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Go To 3
3. CHECK THE (X209) LEFT I/P SPEAKER (+) CIRCUIT AND THE (X299) LEFT I/P SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER
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| 1. | Disconnect the Amplifier C1 harness connector. |
| 2. | Measure the resistance between the (X209) Left I/P Speaker (+) circuit and the (X299) Left I/P Speaker (-) circuit. |
Is the resistance below 10k Ohms?
Yes
- Repair the (X209) Left I/P Speaker (+) circuit for a short to the (X299) Left I/P Speaker (-) circuit.
- Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).
No
- Replace the Amplifier in accordance with the Service Information.
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Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM)
- Standard Procedure).