STEP 1. Using scan tool (M.U.T.-IIISE), check the radar temperature (high or low) and the DTC is set again.
(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 "LOCK" (OFF) position and then wait for a while so that the radar at the ACC/FCM-ECU remains at appropriate temperature.note | The radar temperature can be checked by "Item No.2: ECU temperature" in the scan tool (M.U.T.-IIISE) data list. |
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4) Press the ACC ON/OFF switch to turn the ACC system to ON.
(5) On completion, check that the DTC is set again.
Is DTC C1752 set?
Replace the ACC/FCM-ECU (Refer to ). This diagnosis is complete (Protection is deactivated).