STEP 1. Check the radar or its surrounding area for dirt or foreign material.
(1) Wipe off the dirt or foreign material from the ACC-ECU's radar or its surrounding area.
(2) caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch 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)
."
(3) Turn on the power supply mode of the electric motor switch.
(4) Erase the DTC.
(5) Drive the vehicle for approximately five minutes.
(6) Check if the DTC is set.
(7) Turn off the power supply mode of the electric motor switch.
Is DTC C1753 set?
Go to Step 2. This diagnosis is complete. The system has deactivated the ACC temporarily for safety reason. This is not a malfunction.