Code No. C2302:
Left motor malfunction
DIAGNOSIS CODE SET CONDITIONS
If the electric parking brake actuator (LH) drive circuit is open or short to earth, the
diagnosis code will be set.
| note |
When diagnosis code C2304 is set, this diagnosis code will not be set.
|
PROBABLE CAUSES
- Damaged wiring harness or connector
- Open or short to earth in the wires between the electric parking brake actuator
(LH) and the electric parking brake ECU, or high resistance in a connector
- Malfunction of the electric parking brake actuator assembly (LH)
- Malfunction of the electric parking brake ECU
|
|
STEP 1. Measure the resistance 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 resistance between the MRL+ terminal and the MRL- terminal.
OK: 6 Ω or less.
|
|
|
(3)Measure the resistance between the MRL+ terminal and body earth.
OK: No continuity.
|
|
|
Q.
Is the check result normal?
|
|
|
 Go to Step 3.
|
|
|
|
|
|
 Go to Step 2.
|
|
|
|
|
|
STEP 2. Measure the resistance at the rear brake caliper assembly
(LH) connector.
|
|
|
(1)Disconnect the rear brake caliper assembly (LH) connector and measure at the device
side.
|
|
|
(2)Measure the resistance between terminal No.1 and terminal No.2.
OK: 6 Ω or less.
|
|
|
(3)Measure the resistance between terminal No.1 and body earth.
OK: No continuity.
|
|
|
Q.
Is the check result normal?
|
|
|
The motor circuit may be open or short to earth. Repair the wiring harness wires
or connectors between the electric parking brake ECU connector and the rear brake caliper assembly
(LH) connector.
|
|
|
|
|
|
Replace the electric parking brake actuator assembly (LH) (Refer to  ).
|
|
|
|
|
|
STEP 3. 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.
|
|
|
Q.
Is diagnosis code No. C2302 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).
|
|
|
|