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SWS DIAGNOSIS TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-59 STEP 2. Check the input signal (by using scan tool CAUTION To prevent damage to scan tool MB991502, always turn the when the input signal enters. Q: Does the tone alarm of scan tool MB991502 sound when the input signal enters? by using the driver's inside lock knob. NO : Check the driver's door lock actuator switch input circuit. Refer to Inspection Procedure N-09 ( STEP 3. Check the input signal (by using a voltmeter). ground terminal 4 or 5 and ETACS-ECU terminal 9 of the (2)Check that the voltmeter indicator deflects once when the input signal enters. Q: Does the voltmeter indicator deflect? YES : Replace the ETACS-ECU. All doors should be locked by using the driver's inside lock knob. NO : Check the driver's door lock actuator switch input circuit. Refer to Inspection Procedure N-09 ( Inspection Procedure C-6: Central door locking system: Forgotten key prevention function does not TECHNICAL DESCRIPTION (COMMENT). • Key reminder switch • Driver's or passenger's door switch • Driver's or passenger's door lock actuator switch If the function does not work normally, a defect on TROUBLESHOOTING HINTS • Malfunction of the key reminder switch • Malfunction of the driver's or front passenger's • Malfunction of the driver's or front passenger's • Malfunction of the ETACS-ECU • Damaged harness wires or connectors AC003081 AB 16 PIN MB991502 AC003083 16 PIN AB ETACS-ECU GROUNDED TERMINAL MB991529 |