Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2010XC70 AWD L6-3.2L VIN 96 B6324S2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONB CODE CHARTSB1087B108788 (INFOTAINMENT CONTROL MODULE - ICM)DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2
Diagnostic Trouble Code (DTC) Information
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information ICM-B108788
Condition
The steering wheel buttons are connected to the Infotainment control module (ICM) via LIN communication. The Infotainment control module (ICM) checks the status of the steering wheel buttons.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- No communication with the steering wheel buttons.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Activated control module.
Substitute value
- None.
Possible source
- Short-circuit to ground or supply voltage in LIN bus.
- Open-circuit in the communication cable.
- Contact resistance or oxidation in the terminals or connections.
- Open-circuit in terminals.
- Short-circuit in connections.
Fault symptom[s]
- Audio system steering wheel keypad does not function
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.