4.18 DS 7 / DS 4 / N°4 – Active Scan, PHEV ve ADAS

Research frame

This is a research heading from the source atlas. The heading alone is not OEM service data or a failure-rate claim; model/generation/market identity, official campaigns and measurement evidence remain separate.

Which systems should be separated?

• ICE, HV/48 V, 12 V, DC-DC, motor-generator, regeneration and thermal management are layers of one energy chain.
• HV battery, BMS, isolation, inverter, OBC/DC-DC, 12 V and thermal management are separate evidence chains.
• In ADAS diagnosis, glass/bracket, ride height, tires, alignment and calibration prerequisites matter as much as the sensor.
• For network faults, evaluate source ECU, gateway path, power/ground and wake/sleep behaviour together.

Evidence collection sequence

1. Compare SoC, cell deviation, DC-DC output, motor torque request, regeneration and ICE engagement conditions in one capture.
2. During READY/charging, monitor pack temperatures, cell delta, isolation, 12 V and charging-power curve together.
3. Check alignment, ride height, yaw/steering-angle references and sensor mounting geometry alongside DTCs.
4. Measure CAN-H/CAN-L bias and termination under the fault condition, not only key-on; capture message timing with source address.

Risk of false generalization

• Displayed range or one SoH value alone does not prove battery health.

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