[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
36 -PARKING BRAKE > TROUBLESHOOTING<ELECTRIC PARKING BRAKE><ELECTRIC PARKING BRAKE> > DIAGNOSIS CODE PROCEDURES > CODE NO. C2304 LEFT +B VOLTAGE MALFUNCTION
Code No. C2304: Left +B voltage malfunction
 
 
 
 
DIAGNOSIS CODE SET CONDITIONS
If the power supply to the electric parking brake actuator (LH) fails (low voltage), the diagnosis code will be set.
 
 
PROBABLE CAUSES
  • Malfunction of the battery
  • Malfunction of the alternator
  • Damaged wiring harness or connector
    • Open or short to earth in the wires between the battery and the electric parking brake ECU, or high resistance in a connector
    • Blown fuse
  • Malfunction of the electric parking brake ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Battery check
Refer to GROUP 54A - Battery Test .
Is the battery in good condition?
Go to Step 2.
Charge or replace the battery.
 
STEP 2. Charging system check
Refer to GROUP 16 - Charging System .
Is the charging system in good condition?
Go to Step 3.
Repair or replace the charging system component(s).
 
STEP 3. Measure the voltage at the electric parking brake ECU connector.
(1) Disconnect the electric parking brake ECU connector and measure at the wiring harness side.
(2) Measure the voltage between the +B2 terminal and body earth.
OK: Battery voltage
Is the check result normal?
Go to Step 4.
The power supply circuit may be open or short to earth. Repair the wiring harness wires or connectors between the electric parking brake ECU connector and the battery.
 
STEP 4. Check whether the diagnosis code is set again.
Check again if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to the LOCK (OFF) position.
(3) Check if the diagnosis code is set.
Is diagnosis code No. C2304 set?
Replace the electric parking brake ECU (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).