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Engine-Codes - Generic - B14B9

B14B9 Code - Channel 9 Audio Speaker Output

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents
What does this mean?

|B14B9 code possible causes

  • Faulty Audio Amplifier
  • Audio Amplifier harness is open or shorted
  • Audio Amplifier circuit poor electrical connection

|How is the B14B9 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
What does this mean?

|B14B9 code tech notes

B14B9-2B CHANNEL 9 AUDIO SPEAKER OUTPUT WIRES SHORTED TOGETHER
B14B9-11 CHANNEL 9 AUDIO SPEAKER OUTPUT CIRCUIT SHORT TO GROUND
B14B9-12 CHANNEL 9 AUDIO SPEAKER OUTPUT CIRCUIT SHORT TO BATTERY
B14B9-13 CHANNEL 9 AUDIO SPEAKER OUTPUT CIRCUIT OPEN
B14B9-92 CHANNEL 9 AUDIO SPEAKER OUTPUT PERFORMANCE OR INCORRECT OPERATION

|What is the cost to diagnose the B14B9 code

Labor: 1.0

The cost to diagnose the B14B9 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B14B9 code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What is B14B9 code meaning?

The amplifier receives fused battery current from a fuse in the Power Distribution Center (PDC) at all times. The internal circuitry of the amplifier switches the amplifier on based upon a CAN-I bus message that is received from the Radio Receiver Module (RRM) whenever the RRM is turned on. The amplifier receives the sound signal inputs from the left and right rear outputs of the RRM, and then sends the amplified speaker outputs for each of those channels to the speakers.
The amplifier receives information from the Body Control Module (BCM) and RRM, that communicates the correct channel setting for optimum speaker sound and output.
There are two amplifiers available, an 8 channel, rated at 322 watts (7 channels are used) and a 12 channel (11 channels are used), rated at 506 watts.

|Need more information with the B14B9 code?

Need more information on how to fix the B14B9 code?
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|B14B9 code information for specific makes

|Need help with a B14B9 code?

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