Toyota Corolla Cross: Inspection

Toyota Corolla Cross (2022-2025) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Ultrasonic Sensor (for Rear) / Inspection

INSPECTION

PROCEDURE

1. INSPECT REAR CENTER ULTRASONIC SENSOR (for LH Side)

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
4 (BI) - 6 (EI)	Always	10 kΩ or higher
4 (BI) - 1 (BO)	Always	Below 1 Ω
5 (SI) - 2 (SO)	Always	Below 30 Ω
6 (EI) - 3 (EO)	Always	Below 1 Ω

If the result is not as specified, replace the rear center ultrasonic sensor.

*a	Component without harness connected (Rear Center Ultrasonic Sensor)

2. INSPECT REAR CENTER ULTRASONIC SENSOR (for RH Side)

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
4 (BI) - 6 (EI)	Always	10 kΩ or higher
4 (BI) - 1 (BO)	Always	Below 1 Ω
5 (SI) - 2 (SO)	Always	Below 30 Ω
6 (EI) - 3 (EO)	Always	Below 1 Ω

If the result is not as specified, replace the rear center ultrasonic sensor.

*a	Component without harness connected (Rear Center Ultrasonic Sensor)

3. INSPECT REAR CORNER ULTRASONIC SENSOR (for LH Side)

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
4 (BI) - 6 (EI)	Always	10 kΩ or higher
4 (BI) - 1 (BO)	Always	Below 1 Ω
5 (SI) - 2 (SO)	Always	Below 30 Ω
6 (EI) - 3 (EO)	Always	Below 1 Ω

If the result is not as specified, replace the rear corner ultrasonic sensor.

*a	Component without harness connected (Rear Corner Ultrasonic Sensor)

4. INSPECT REAR CORNER ULTRASONIC SENSOR (for RH Side)

(a) Check the resistance.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
4 (BI) - 6 (EI)	Always	10 kΩ or higher
4 (BI) - 1 (BO)	Always	Below 1 Ω
5 (SI) - 2 (SO)	Always	Below 30 Ω
6 (EI) - 3 (EO)	Always	Below 1 Ω

If the result is not as specified, replace the rear corner ultrasonic sensor.

*a	Component without harness connected (Rear Corner Ultrasonic Sensor)

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