STEP 2. Using scan tool (M.U.T.-IIISE), check whether the heater controller assembly (A/C-ECU) DTC is set.
Check that the DTC related to the heater controller assembly (A/C-ECU) is not set.(1) caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the electric motor switch to the 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 electric motor switch from OFF position to ON position.
(3) Check whether the DTC is set.
(4) Turn the electric motor switch to the OFF position.
Is the DTC set?
Carry out the DTC procedures (Refer to ). Go to Step 3.
STEP 3. The heater controller assembly (A/C-ECU) using scan tool (M.U.T.-IIISE), check actuator test.
STEP 4. Check of open circuit in FA, FA' FB and FB' line between outside/inside air selection damper control motor connector and heater control panel assembly (A/C-ECU) connector.