Test D: DTC B1299 Power Supply Sensor Circuit Short To Ground

PINPOINT TEST D: DTC B1299 POWER SUPPLY SENSOR CIRCUIT SHORT TO GROUND

D1:

D1-D3:

Normal Operation
The parking aid module supplies voltage to the 2 ultrasonic sensors through circuit 1439 (BN/PK). Ground is supplied to the 2 ultrasonic sensors on circuit 1440 (DG/YE). Object detection information is transmitted from the 2 ultrasonic sensors to the parking aid module through circuit 1441 (WH/LG) for the LH sensor, and circuit 1444 (DB/YE) for the RH sensor. Voltage is supplied to the center radar sensor from the parking aid module through circuit 1959 (RD/WH). The center radar sensor is grounded through circuit 1960 (PK/YE) back to the parking aid module. Object detection information is transmitted from the center radar sensor to the parking aid module on circuit 1443 (WH/LB).

Possible Causes
- circuit 1439 (BN/PK) short to ground
- circuit 1959 (RD/WH) short to ground
- parking aid sensor
- parking aid module