Engine-Codes - RAM - B147E RAM

B147E RAM Code - Channel 7 Audio Speaker Output

- Code Popularity: 716 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC B147E RAM?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Audio Amplifier
  • Audio Amplifier harness is open or shorted
  • Audio Amplifier circuit poor electrical connection

Code Tech Notes

B147E-11 CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORT TO GROUND
B147E-12 CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT SHORT TO BATTERY
B147E-13 CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT OPEN
B147E-92 CHANNEL 7 AUDIO SPEAKER OUTPUT PERFORMANCE OR INCORRECT OPERATION

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How to Fix the DTC B147E RAM?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B147E RAM code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B147E RAM Code Mean?

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.

B147E RAM Code - Channel 7 Audio Speaker Output

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