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 MANUALSVOLVO2004V70 L5-2.5L TURBO VIN 59 B5254T2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSBCM CODES (BRAKE CONTROL MODULE)BCM-0103DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Diagnostic Trouble Code (DTC) Information
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information
Condition
The brake pedal position sensor transmits a signal to the brake control module about the position of the brake pedal and the speed at which it is pressed. The brake control module uses the signal to activate the brake assistance function during emergency braking.
Diagnostic trouble code (DTC) BCM-0103 is stored if the control module registers a faulty signal from the pedal position sensor.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switch on and if the signal from the pedal position sensor is more than 4.85 V or less than 0.15 V for too long.
Substitute value
- Brake assistance is blocked.
Hint: For information about abbreviations, see Brake system, abbreviations Brake System, Abbreviations.
Possible source
- Open-circuit in the signal cable
- Short-circuit to ground or supply voltage in the wiring
- Incorrectly installed sensor
- Defective sensor
- Internal fault in the control module.
Fault symptom[s]
- General warning lamp lit.
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.