MG ZS (Gen2) Power Window Not Working

A Power Window Not Working fault indicates that one or more electric windows are unable to open or close correctly due to an electrical, mechanical, or control system fault. The power window system relies on the Body Control Module (BCM), window switches, window motors, regulators, fuses, relays, and door wiring harnesses to operate each window. If a fault occurs in any of these components or their communication circuits, the affected window may stop responding completely or operate intermittently. This fault applies to the MG ZS Gen2 (ZS11 platform), introduced from 2024 onwards.

Symptoms

  • One or more power windows not operating
  • Window will not open
  • Window will not close
  • Window operates intermittently
  • Driver master switch not functioning
  • Individual door switch not responding
  • Window moves slowly
  • Grinding or clicking noise inside the door
  • Multiple body electrical functions affected
  • Body Control Module (BCM)-related Diagnostic Trouble Codes (DTCs) stored

Possible Causes

  • Faulty power window switch
  • Faulty driver master window switch
  • Faulty window motor
  • Damaged window regulator
  • Body Control Module (BCM) fault
  • Blown fuse or faulty relay
  • Damaged door wiring harness
  • Broken wires inside the door hinge area
  • Loose or corroded electrical connectors
  • Window glass binding in the guide channels
  • Low battery voltage
  • CAN Bus communication fault

Diagnosis

Diagnosis begins by retrieving all stored Diagnostic Trouble Codes (DTCs) from the Body Control Module (BCM) and other related control modules using a compatible diagnostic scan tool. Live data should be reviewed to verify switch inputs, window motor commands, and communication between the BCM and the affected door.

The technician should inspect the window switches, window motor, regulator assembly, door wiring harness, connectors, fuses, relays, power supplies, and ground circuits for damage, corrosion, loose terminals, or broken wires. Electrical circuit testing, voltage drop testing, continuity checks, and motor activation tests should be completed before replacing any components.

For vehicles operating in New Zealand, following OEM diagnostic procedures helps accurately distinguish between a faulty switch, window motor, regulator failure, wiring defect, BCM issue, or communication fault before replacing expensive electrical components.

Accurately diagnosing this fault often requires manufacturer testing procedures, wiring diagrams, connector pinouts, body electrical schematics, window motor circuit diagrams, BCM communication diagrams, electrical specifications, live data reference values, software calibration information, and system initialization procedures. Access to the factory service manual significantly reduces diagnostic time and helps prevent unnecessary parts replacement.

Applicable Years

2024, 2025, 2026, onwards

To order the correct OEM Service and Repair Manual for your MG ZS, submit your request using the form below, and our team will provide the ordering details.