Test K

Test K1-K2:

Test K3-K6:

Pinpoint Test K: DTC C1799: EPB Hall-Effect Circuit Failure

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.

Normal Operation
The EPB actuator contains a Hall-effect sensor, which the EPB module rises to determine how long the EPB motor is required to run during an application or release of the parking braille. The Hall-effect sensor receives power (approximately 2 volts below battery voltage) from the EPB module through circuit 7-CG20(YE/VT). Circuit 8-CG20 (WH/VT) provides a signal to the EPB module and this signal will vary between 0 and 4.4 volts when the EPB motor is rotating. The voltage varies due to the presence of a magnetic field, which is being, detected by the Hall-effect sensor. Ground to the Hall-effect sensor is supplied by circuit 9-CG20 (BN/VT).

Possible Causes
^ Circuit 7-CG20 (YE/VT)
^ Circuit 8-CG20 (WH/VT)
^ Circuit 9-CG20 (BN/VT)
^ EPB actuator
^ EPB module