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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus lines (Refer to GROUP 54C -
CAN Bus Diagnostics Table .).
Then go to Step 2.
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(1)Turn the ignition switch to the "ON" position.
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(2)Check whether any TPMS diagnosis code is stored.
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Q.
Is any TPMS diagnosis code stored?
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Carry out the relevant TPMS troubleshooting (Refer to .).
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Check that the combination meter warning lamps and indicators other than TPMS warning
lamp illuminate normally.
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Q.
Is the check result normal?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU .) <vehicles
without keyless operation system> or KOS-ECU (Refer to GROUP 42B - KOS-ECU .) <vehicles
with keyless operation system> and execute "Tyre Pressure Sensor ID Registration" on M.U.T.-III
"Special Function" (Refer to .). Then go to Step 4.
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Replace the combination meter assembly (Refer to GROUP 54A - Combination Meter
Assembly .). Then go to Step 4.
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Q.
Does the TPMS warning lamp turn ON and OFF normally?
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The procedure is complete.
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Repeat the troubleshooting from Step 1.
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