[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > ETACS > INPUT SIGNAL PROCEDURES > THE DRIVER'S DOOR LOCK ACTUATOR SWITCH SIGNAL IS NOT SENT TO THE ETACS-ECU.
Inspection Procedure 4: The front door lock actuator (driver’s side) signal is not received.
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
COMMENTS ON TROUBLE SYMPTOM
The front door lock actuator (driver’s side) input signal is used for the operation judgement of the functions below. If the signal is abnormal, these functions will not work normally.
  • Key reminder function
  • Central door locking
  • KOS
  • Keyless entry system
  • Room lamp
 
 
PROBABLE CAUSES
  • Malfunction of the front door lock actuator (driver’s side)
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Front door lock actuator (driver’s side) check
Refer to GROUP 42A - Door .
Is the check result normal?
Go to Step 2.
Replace the front door lock actuator (driver’s side).
 
STEP 2. Resistance measurement at front door lock actuator (LH) connector (earth terminal)
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the door lock actuator (LH) connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 4.
Go to Step 3.
 
STEP 3. Check of open circuit in earth line between front door lock actuator (LH) connector and body earth
Is the check result normal?
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
Repair the connector(s) or wiring harness.
 
STEP 4. Check of short to power supply, short to earth, and open circuit in DDUK line between ETACS-ECU connector and front door lock actuator (LH) connector
Is the check result normal?
Replace the ETACS-ECU.
Repair the connector(s) or wiring harness.