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 MANUALSKIA2015SOUL EV BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESELECTRONIC STABILITY CONTROL (ESC) DIAGNOSISDTC C1209: WHEEL SPEED SENSOR REAR-RH OPEN/SHORTWIRING INSPECTIONSIGNAL CIRCUIT INSPECTION

2015 Kia Soul EV Base

Signal Circuit Inspection

2015 Kia Soul EV BaseSECTION Signal Circuit Inspection

Lift vehicle with suitable lift and refer to Wheel Repair Procedures
Ignition "ON" & ENG "OFF".
Gear position "N" range.
Rotate the disc slowly by hands.

Back probe and measure signal waveform between Pin No. 1 (Signal) terminal of WSS (RR) and chassis ground with GDS.

Wheel Speed Sensor (active type)	Output voltage		Resistance
Wheel Speed Sensor (active type)	High	Low	Resistance
Front Wheel Speed Sensor (FL, FR)	Approx. 13.3V	Approx. 12.1V	Approx. 453.9kΩ
Rear Wheel Speed Sensor (RL, RR)	Approx. 13.3V	Approx. 12.1V	Approx. 453.9kΩ

Fig 1: Screen Display - Sensor Operating Voltage (Frequency Increases In Proportion To Engine Speed)

Courtesy of KIA MOTORS AMERICA, INC.

Is the measured value within specifications?
YES
- Fault might be intermittent caused by poor contact in the sensor's and/or ECU's connector or was repaired and ECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification Of Vehicle Repair " procedure.
NO
- Go to Next step procedure.
IG "OFF" & Disconnect WSS (RR) connector.
Disconnect IBAU connector.
Measure resistance between Pin No. 1 (signal) of WSS (RR) connector and Pin No. 43 (signal) of IBAU connector.
Specification: Approx. 1Ω
Is the measured value within specifications?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair as necessary and go to "Verification Of Vehicle Repair " procedure.

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.