54Da-DTC C1615 Brake control prohibited request

DTC C1615: Brake control prohibited request

caution

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

DTC SET CONDITIONS

The PHEV-ECU sets DTC C1615 when it requests the ASC-ECU to inhibit the brake control.

PROBABLE CAUSES

DIAGNOSIS

STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.

Check whether the ASC-ECU related DTC is set or not (Refer to GROUP 35C - Diagnostic Trouble Code Chart

Is the DTC set?

Troubleshoot for the relevant DTC.

Go to Step 2

STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.

Check whether the ASC-ECU related DTC is set in the PHEV-ECU.

Is the DTC set?

Troubleshoot for the relevant DTC.

Go to Step 3

STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.

Recheck the DTC.

(1) Erase the DTC.

(2) Turn off the power supply mode of the electric motor switch.

(3) Turn on the power supply mode of the electric motor switch.

(4) Check the DTC.

Is the DTC set?

Replace the PHEV-ECU (Refer to

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction