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The key reminder switch (ignition key ring antenna) supplies the ignition key with power, and the ignition key sends the key ID to the ETACS-ECU. ETACS-ECU receives the key ID with the key ring antenna, and judges if the ignition key is the registered one.
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- Diagnosis code No.B1702 is stored when there are other ignition keys or anything that interferes with the communication (things that generate radio waves such as magnets and an air-cleaning device that has a power plug) near the ignition key that is going to start the engine.
- If the key ID is not sent to the ETACS-ECU even when the ignition switch is turned to the ON position, diagnosis code No.B1702 is stored.
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- Interference of the key ID
- Malfunction of the key ring antenna (antenna wire)*
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*: Code No. B1722 will be stored if a trouble occurs in the key ring antenna.
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- Malfunction of ignition key
- Malfunction of ETACS-ECU
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Q.
Is diagnosis code No.B1722 stored?
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Q.
Are there other ignition keys or anything that interferes with the communication (things that generate radio waves such as magnets and an air-cleaning device that has a power plug) near the ignition key inserted in the key cylinder?
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Move away or remove other ignition keys or things that interfere with the communication (things that generate radio waves such as magnets and a air-cleaning device that has a power plug) near the ignition key. Then, go to Step 4.
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Check that the engine starts using the spare key that has already been registered.
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Q.
Is diagnosis code No.B1702 stored?
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Replace the ETACS-ECU. After registering the ID codes, go to Step 4.
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Replace the ignition key for which diagnosis code No.B1702 is stored, and register the ID codes again (Refer to ). After registering the ID codes, go to Step 4.
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(1)Turn the ignition switch to the "LOCK" (OFF) position once, and then turn it to the ON position again.
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(2)On completion, check that diagnosis code No.B1702 is not stored again.
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Q.
Is diagnosis code No.B1702 stored?
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The diagnosis is complete. If another diagnosis code is stored, refer to Diagnosis Code Chart .
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