B146E-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER

For a complete wiring diagram Refer to Section 8W.


  • When Monitored:
  • With the ignition on. Radio volume at 25 or higher.
  • Set Condition:
  • The amplifier detects that the output circuits are shorted together.

Possible Causes
  
(X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT SHORTED TO THE (X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUIT
  
AMPLIFIED LEFT FRONT SPEAKER
  
AMPLIFIER
  



Diagnostic Test

1.CHECK FOR AN INTERMITTENT CONDITION







Does the scan tool display active: B146E-CHANNEL 3 AUDIO SPEAKER OUTPUT CIRCUIT SHORTED TOGETHER?

Yes
  • Go To 2


No
  • The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
  • Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2.CHECK THE OPERATION OF THE AMPLIFIED LEFT FRONT SPEAKER





Is the resistance of the speaker less than 1 ohm?

Yes


No
  • Go To 3

3.CHECK THE (X209) AMPLIFIED LEFT FRONT SPEAKER (+) CIRCUIT, AND THE (X299) AMPLIFIED LEFT FRONT SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER






Is the resistance below 10K ohms?

Yes


No