STEP 1. Using scan tool (M.U.T.-III), Check whether the diagnostic trouble code is set again.
(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 Scan Tool (M.U.T.-III)
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(2) Turn the ignition switch to the "ON" position.
(3) Erase the DTC.
(4) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(5) Check if the DTC B2350 or B2351 is set.
Is the DTC set?
Go to Step 2. The trouble can be an intermittent malfunction (GROUP 00 - How to Cope with Intermittent Malfunction ).
STEP 2. Using scan tool (M.U.T.-III), Check whether the diagnostic trouble code is set again.
Check again if the DTC is set in the ETACS-ECU.(1) Replace the column switch (with built-in column-ECU).
(2) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4) Check if DTC is set.
Is the DTC set again?
Replace the ETACS-ECU. The diagnosis is complete.