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AutoCodes - Generic - B1201

B1201 Code - Steering Wheel Audio Switch Pack 2

- Code Popularity: 30,151 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC B1201?

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 Steering Wheel Audio Switch Pack 2
  • Steering Wheel Audio Switch Pack 2 harness is open or shorted
  • Steering Wheel Audio Switch Pack 2 circuit poor electrical connection
  • Faulty Audio Control Module (ACM) or Accessory Protocol Interface Module (APIM)
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How to Fix the DTC B1201?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B1201:1C - Steering Wheel Audio Switch Pack 2 Circuit Voltage Out of Range
B1201:63 - Steering Wheel Audio Switch Pack 2 Circuit/Component Protection Time-Out

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1201 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B1201 Description

Voltage is sent from the Audio Control Module (ACM) or Accessory Protocol Interface Module (APIM) to the steering wheel controls, and the same module grounds the return circuit. The VOL-, VOL+, SEEK- and SEEK+ switches share signal and return circuits, while the VOICE, MEDIA, PHONE and OK switches share separate signal and return circuits. For all configurations, when a switch is pressed, the voltage is routed through a specific resistor value for each function. The ACM (or APIM) then uses the reference voltage to determine which control input function has been selected. The OBDII code is set by the navigation ACM when the reference voltage to the steering wheel controls is out-of-range. This can be caused by a number of different failures on the steering wheel controls circuit except for a stuck switch or a short to ground in the signal return circuit.

OBDII Code B1201 - Steering Wheel Audio Switch Pack 2 - AutoCodes.com
B1201 Code - Steering Wheel Audio Switch Pack 2

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