2010 Hyundai Genesis Coupe ESC System Wiring Diagram SD588-2 (2.0T/3.8)
Wiring diagram of the Electronic Stability Control (ESC) system showing the ESC unit, vacuum pump relay and connector paths.
This is page SD588-2 of a factory wiring diagram covering the Electronic Stability Control (ESC) System (2). It shows the power supply paths to the ESC system: an ECU 10A fuse (hot in ON or START), STOP LP 15A fuse (hot at all times), IGN/ESCL 7.5A fuse (hot in ON) from the I/P junction box, and a multi-fuse block in the engine-room junction box (LH) with VACUUM PUMP 15A, ABS-2 40A, and ABS-1 40A fuses. The diagram details the stop lamp switch (connector E34, with contacts that close/open with brake pedal position), the vacuum pump relay (E67), vacuum switch (E41), and vacuum pump motor (E40) — several branches labeled A/T(G4KF). The central ESC control module (connector E15) pinout is shown with functions including brake switch, brake light switch, vacuum switch, vacuum pump relay driver, BATT1/BATT2, grounds, yaw sensor power/ground, sensor CAN high/low, and wheel sensor outputs (FR/RR). Lower circuits connect to the yaw rate sensor (M19), the PDM (with button start, connector M51-B), and to the ECM via speed sensor input (G6DA engine) or vehicle speed sensor (G4KF engine). Wire colors, connector pin numbers, photo references, and cross-references to related power distribution and stop lamp diagrams (SD110-x, SD120-5, SD927-1) are included.
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Frequently asked questions
- What fuses power the ESC system in this diagram?
- An ECU 10A fuse (hot in ON or START), a STOP LP 15A fuse (hot at all times), an IGN/ESCL 7.5A fuse (hot in ON) in the I/P junction box, plus a multi-fuse in the E/R junction box LH with VACUUM PUMP 15A, ABS-2 40A, and ABS-1 40A fuses (hot at all times).
- What connector is the stop lamp switch on and how do its contacts work?
- The stop lamp switch uses connector E34. Contact (A) closes with the brake pedal depressed and contact (B) opens with the brake pedal depressed.
- Which ESC control module pins carry the sensor CAN signals?
- On connector E15, pin 42 is Sensor CAN High (wire L) and pin 43 is Sensor CAN Low (wire Y/B), which route to the yaw rate sensor (connector M19).
- Where do the wheel speed sensor outputs from the ESC module go?
- Wheel Sensor Output (FR) on pin 27 (Br wire) goes through EM21 to the PDM (pin 14, M51-B) on vehicles with button start. Wheel Sensor Output (RR) on pin 41 goes to the ECM — via CLG-B pin 15 (Speed Sensor Input) on the G6DA engine or via CHG-K pin 40 (Vehicle Speed Sensor) on the G4KF engine.
- Which components are on the vacuum pump circuit for the ESC system?
- A VACUUM PUMP 15A fuse feeds the vacuum pump relay (connector E67), which drives the vacuum pump motor (connector E40, grounded at GE04). A vacuum switch (connector E41) reports to ESC module pin 33. These branches are labeled A/T(G4KF).
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