2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > IGNITION SWITCH<Vehicles without keyless operation system><Vehicles without keyless operation system> > SYMPTOM PROCEDURES > IGNITION KEY CYLINDER ILLUMINATION LAMP DOES NOT ILLUMINATE/EXTINGUISH NORMALLY.
Inspection Procedure 1: The ignition key cylinder illumination lamp does not illuminate/extinguish normally.
| caution | - Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
- When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in Immobilizer System - How to Register Key ID
.)
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OPERATION
The ETACS-ECU operates this function in accordance with the input signals below.
- Ignition switch (IG1)
- Key reminder switch
- Door switches
- Driver's door lock actuator
COMMENTS ON TROUBLE SYMPTOM
If this function does not work normally, these input signal circuit(s), the ignition key cylinder illumination lamp or the ETACS-ECU may be defective.
PROBABLE CAUSES
- Malfunction of the key reminder switch
- Malfunction of the door switch
- Malfunction of the driver's door lock actuator
- Malfunction of the ignition key cylinder illumination lamp bulb
- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE diagnosis code.
STEP 2. Check the interior lamps operation.
STEP 3. Check of open circuit in LP+3 and RLP- lines between key reminder switch connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
STEP 4. Check of ignition key cylinder illumination lamp bulb.
Check that the ignition key cylinder illumination lamp bulb is normal.Is the check result normal?
Go to Step 5.
Replace the bulb of the ignition key cylinder illumination lamp.
STEP 5. Retest the system.