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INPUT SIGNAL PROCEDURES SMART WIRING SYSTEM (SWS) USING SWS MONITOR 54C-562 Inspection Procedure Q-23: Each switch signal of the keyless entry transmitter is not received. CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM Input signal from the keyless entry transmitter is • Keyless entry system • Keyless entry hazard answerback • Multimode keyless entry system POSSIBLE CAUSES • Malfunction of the keyless entry transmitter • Defective battery of the keyless entry transmitter • Malfunction of the ETACS-ECU DIAGNOSIS PROCEDURE Step 1. Pulse check Check whether the ETACS-ECU receives signal from −
On-vehicle Service . OK: The MUT-III sounds or the voltmeter Q: Is the check result normal? YES : Go to Step 2. NO : Go to Step 4. Step 2. Check the transmitter battery. Refer to GROUP 42 − Keyless entry system Q: Is the check result normal? YES : Go to Step 3. NO : Replace the keyless entry transmitter Step 3. Register the encrypted code, and then keyless entry transmitter. Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent Malfunction NO : Replace the keyless entry transmitter. Step 4. Retest the system. Check that each signal is received from the keyless Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent Malfunction NO : Replace the ETACS-ECU. W3Z10E39AA KEYLESS ENTRY KEYLESS ENTRY ETACS-ECU Transmitter Input Circuit System switch Check condition Keyless entry transmitter When the switch is |