C1616

Code No.C1616: Cranking Signal 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

AWC-ECU receives the signal of the ignition switch from ETACS-ECU via CAN communication.

DIAGNOSTIC TROUBLE CODE SET CONDITIONS

This diagnostic trouble code is set when the cranking signal is continued for the specified time during driving.

PROBABLE CAUSES

- Malfunction of the ETACS-ECU

- Ignition switch malfunction

- Damaged harness wires and connectors

- Malfunction of AWC-ECU

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.C1616 set?

YES Go to Step 3.
NO This diagnosis is complete.
STEP 3. M.U.T.-III diagnostic trouble code.

- Check the KOS diagnostic trouble code. Keyless Operation System (KOS)).

- Check the WCM diagnostic trouble code. Wireless Control Module (WCM)).

- Check the ETACS diagnostic trouble code. Electronic Time and Alarm Control System (ETACS)).

Q. Is the diagnostic trouble code set?

YES Perform the relevant troubleshooting.
NO Go to Step 4.
STEP 4. M.U.T.-III data list.

Item 30: Ignition SW (CAN input) (Refer to data list reference table Data List Reference Table.)

Q. Is the check result normal?

YES Go to Step 9.
NO Go to Step 5.
STEP 5. Ignition switch check

(1)Disconnect C-210 ignition switch connector, and check the continuity between the terminals No.1 and No.5 at the ignition switch side.

(2)Turn the ignition switch to the "ON" position.
OK: No continuity


Q. Is the check result normal?

YES Go to Step 6.
NO Replace the ignition switch. Service and Repair). Then go to Step 10.
STEP 6. Ignition switch connector, ETACS-ECU connector check: C-210, C-315

Q. Is the check result normal?

YES Go to Step 7.
NO Repair the defective connector. Then go to Step 10.
STEP 7. Check the wiring harness between C-210 ignition switch connector terminal No.5 and C-315 ETACS-ECU connector terminal No.7.

Check the power supply line for short (for short to the power supply) circuit.

Q. Is the check result normal?

YES Go to Step 8.
NO Repair the wiring harness. Then go to Step 10.
STEP 8. M.U.T.-III data list.

ETACS item No.287: Starter switch Data List Reference Table).

Q. Is the check result normal?

YES Go to Step 9.
NO Replace the ETACS-ECU. Electronic Time and Alarm Control System (ETACS)-ECU Removal and Installation). Then go to Step 9.
STEP 9. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1616 set?

YES Replace the AWC-ECU. (Refer to AWC-ECU Removal and Installation). Then go to Step 10.
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions).
STEP 10. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1616 set?

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