STEP 1. Using scan tool (M.U.T.-III), check data list.
(1) caution | To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III). |
Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)
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(2) Check that the following service data display contents are normal. (Refer to ).Item No.20: Air thermo sensor
Is the check result normal?
Go to Step 4. Go to Step 2.
STEP 2. Check of open and short circuit in + and - line between fin thermo sensor and auto heater controller assembly (A/C-ECU) connector.
STEP 3. Check the fin thermo sensor.
STEP 4. Check whether the DTC is set again.