STEP 1. Using scan tool (M.U.T.-IIISE), check the DFI and MFI system data list.
(1) caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE). |
Connect scan tool (M.U.T.-IIISE). Refer to "How to connect the Scan Tool (M.U.T.-IIISE)
."
(2) Turn the ignition switch to the "ON" position.
(3) Using scan tool (M.U.T.-IIISE), check the DFI and MFI system data list (Refer to GROUP 13A - Diagnosis, Data List Reference Table ).- Item No.74: Stoplight switch
- Item No.89: Normally closed brake switch
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the check result normal?
Go to Step 2. Check stoplight switch system. Check DTC P0504: Malfunction of the Stoplight Switch System (Refer to ).