Disconnect Rear Junction Box C4BR02.
1
Measure the resistance between the:
EPB module C4CB01 pin 13, circuit C_SBR03A
(BU/RD), harness side and the rear junction box
C4BR02-C pin 304, circuit C_SBR03A (BU/RD).
EPB module C4CB01 pin 15, circuit C_SBR02A
(YE/RD), harness side and the rear junction box
C4BR02-C pin 303, circuit C_SBR02A (YE/RD).
2
Are the resistances less than 2 ohms?
Yes
INSTALL a new EPB module.
REFER to: Parking Brake Module (206-05 Parking
Brake and Actuation, Removal and Installation).
REPEAT the self-test, CLEAR the DTCs.
No
REPAIR circuit C_SBR02A (YE/RD) or circuit
C_SBR03A (BU/RD). REPEAT the self-test, CLEAR the
DTCs.
PINPOINT TEST AB : DTC U3003.62: BATTERY VOLTAGE / DTC U3006.16:
BATTERY VOLTAGE (LOW OR HIGH)
TEST CONDITIONS
DETAILS/RESULTS/ACTIONS
AB1: CHECK THE EPB MODULE MOTOR SUPPLY CIRCUIT
Disconnect EPB Module C4CB01.
1
Ignition switch in position II.
2
Measure the voltage between the:
EPB module C4CB01 pin 13, circuit C_SBR03A
(BU/RD), harness side and ground.
EPB module C4CB01 pin 15, circuit C_SBR02A
(YE/RD), harness side and ground.
3
Are the voltages greater than 10 volts?
Yes
GO to AB2
.
No
GO to AB3
.
AB2: CHECK THE EPB MODULE MOTOR SUPPLY CIRCUIT IMPEDANCE
Disconnect Rear Junction Box C4BR02.
1
Measure the resistance between the:
EPB module C4CB01 pin 13, circuit C_SBR03A
(BU/RD), harness side and the rear junction box
C4BR02-C pin 304, circuit C_SBR03A (BU/RD).
EPB module C4CB01 pin 15, circuit C_SBR02A
(YE/RD), harness side and the rear junction box
C4BR02-C pin 303, circuit C_SBR02A (YE/RD).
2
Are the resistances less than 2 ohms?
Yes
INSTALL a new EPB module.
REFER to: Parking Brake Module (206-05 Parking
Brake and Actuation, Removal and Installation).
REPEAT the self-test, CLEAR the DTCs.
No