C1614

Code No.C1614: Parking Brake Switch System (Stuck On)

















CAUTION:

- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.

- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

OPERATION

The AWC-ECU receives the parking brake switch signal from the combination meter via CAN communication.

DIAGNOSTIC TROUBLE CODE SET CONDITIONS

This diagnostic trouble code is set when the parking brake switch ON information is received continuously for long time during driving.

PROBABLE CAUSES

- Parking brake switch malfunction

- Damaged harness wires and connectors

- Combination meter malfunction

- Malfunction of AWC-ECU

- Driving with parking brake ON

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.

Use scan tool to perform the CAN bus diagnosis.

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the CAN bus lines. CAN Bus Diagnostics Chart). After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1614 set?

YES Go to Step 3.
NO This diagnosis is complete.
STEP 3. M.U.T.-III data list.

Item 29: Parking brake SW (CAN input) (Refer to data list reference table Data List Reference Table).

Q. Is the check result normal?

YES Go to Step 8.
NO Go to Step 4.
STEP 4. Check the parking brake switch.

Check the parking brake switch. Testing and Inspection).

Q. Is the check result normal?

YES Go to Step 5.
NO Replace the parking brake switch. Removal and Replacement). Then go to Step 8.
STEP 5. Combination meter connector, intermediate connector, and parking brake switch connector check: C-03, C-22, D-125

Check the contact status of the terminals.

Q. Is the check result normal?

YES Go to Step 6.
NO Repair the defective connector. Then go to Step 8.
STEP 6. Check the wiring harness between C-03 combination meter connector terminal No.4 and D-125 parking brake switch connector terminal No.1.

Check the power supply line for short circuit.

Q. Is the check result normal?

YES Replace the combination meter. Removal and Replacement). Then go to Step 7.
NO Repair the wiring harness. Then go to Step 7.
STEP 7. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1614 set?

YES Replace the AWC-ECU. (Refer to AWC-ECU Removal and Installation). Then go to Step 8.
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions).
STEP 8. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1614 set?

YES Return to Step 1.
NO This diagnosis is complete.