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 MANUALSVOLVO1998S70 GL L5-2.4L VIN 55 B5254SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSCRUISE CONTROL SYSTEM(P) DIAGNOSTIC TEST MODE (DTM) 5, REASON FOR DISENGAGEMENT(PD) RESPONSE CODE 1-2-4
1998 Volvo S70 GL L5-2.4L VIN 55 B5254S
(PD) Response Code 1-2-4
1998 Volvo S70 GL L5-2.4L VIN 55 B5254SSECTION (PD) Response Code 1-2-4
PD. 1-2-4 Disconnected Stop (brake) Light Circuit
Response code information
Response code 1-2-4 is posted if the cruise control system is disengaged by the brake pedal being pressed and activating the stop light switch. If this did not occur during the test drive, terminal 6B was not connected to the body through the stop lights at the moment of disengagement.
If the code was posted without disconnection of the cruise control system by the brake pedal being pressed and activating the brake light switch:
Fault trace according to LE. Response code 1-3-2 Stop (brake) light switch.(L) Diagnostic Test Mode (DTM) 2, Component Test
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.