[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > ETACS > INPUT SIGNAL PROCEDURES > THE KEY REMINDER SWITCH SIGNAL IS NOT SENT TO THE ETACS-ECU.<VEHICLES WITHOUT KOS><VEHICLES WITHOUT KOS>
Inspection Procedure 3: The key reminder switch signal is not received. <Vehicles without KOS>
 
 
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 key reminder switch input signal is used for the operation judgement of the functions below. If the signal is abnormal, these functions will not work.
  • Ignition key reminder function
  • Central door locking
  • Keyless entry system
  • Ignition key cylinder illumination lamp
  • Room lamp
 
 
PROBABLE CAUSES
  • Malfunction of the key reminder switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Check the key reminder switch.
Refer to .
Is the check result normal?
Go to Step 2.
Replace the key reminder switch.
 
STEP 2. Resistance measurement at key reminder switch connector (earth terminal)
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the key reminder switch 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 key reminder switch connector and the 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 HL1+ line between ETACS-ECU connector and key reminder switch connector
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. M.U.T.-IIISE data list
Check the input signals from the key reminder switch.
  • Ignition switch: "LOCK" (OFF) (key inserted)
 
Item No.Item nameNormal condition
88Steering wheel lock switchKey in
OK: Normal condition is displayed.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.