[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - IGNITION KEY CYLINDER ILLUMINATION LAMP - INSPECTION PROCEDURE J-1: The ignition key cylinder illumination lamp does not illuminate/extinguish normally. | PRINT PAGE / INDEX / PRIOR / NEXT

IGNITION KEY CYLINDER ILLUMINATION LAMP

INSPECTION PROCEDURE J-1: The ignition key cylinder illumination lamp does not illuminate/extinguish normally.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM The ETACS-ECU operates this function in accordance with the input signals below. <Vehicles without keyless entry system> Ignition switch (IG1) Driver's door switch <Vehicles with keyless entry system> Ignition switch (IG1) Key reminder switch Driver's door switch Interior lamp loaded signal 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.
| POSSIBLE CAUSES Malfunction of the key reminder switch Malfunction of the driver's door switch Malfunction of the ignition key cylinder illumination lamp Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Check the operation of the room lamp. Check that the room lamps illuminate and extinguish normally. Q: Is the check result normal? YES: Go to Step 2. NO: Refer to Inspection Procedure O-1 "The front or rear room lamp does not illuminate or extinguish <vehicles without keyless entry system> ." Or refer to Inspection Procedure O-2 "The front or rear room lamp does not illuminate or extinguish <vehicles with keyless entry system> ."
| Step 2. Pulse check Check the input signals below, which are related to the ignition key cylinder illumination lamp.
System switch | Check condition
--- | ---
Ignition switch (IG1) | When turned from ACC to ON
Key reminder switch* | When the inserted ignition key is pulled out
Driver's door switch | When the driver's door is opened
NOTE: * : Vehicles with keyless entry system OK: The MUT-II/III sounds or the voltmeter needle fluctuates. Q: Is the check result normal? All the signals are received normally.: Go to Step 3. The ignition switch (IG1) signal is not received.: Refer to Inspection Procedure P-2 "The ignition switch (IG1) signal is not received ." The key reminder switch signal is not received.: Refer to Inspection Procedure P-10 "The key reminder switch signal is not received ." The driver's door switch signal is not received.: Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <LH drive vehicles> ." Refer to Inspection Procedure P-4 "The driver's door switch signal is not received <RH drive vehicles> ."
| Step 3. Connector check: C-304 key reminder switch connector Q: Is the check result normal? YES: Go to Step 4. NO: Repair the defective connector.
| Step 4. Check the bulb of the ignition key cylinder illumination lamp. Check the bulb of the ignition key cylinder illumination lamp. Q: Is the check result normal? YES: Go to Step 5. NO: Replace the bulb of the ignition key cylinder illumination lamp.
| Step 5. Connector check: C-219 ETACS-ECU connector Q: Is the check result normal? YES: Go to Step 6. NO: Repair the defective connector.
| Step 6. Check the wiring harness from C-219 ETACS-ECU connector terminal Nos.69 and 71 to C-304 ignition key cylinder illumination lamp connector terminal Nos.1 and 2. Check the input and output lines for open circuit. Q: Is the check result normal? YES: Go to Step 7. NO: Repair the wiring harness.
| Step 7. Retest the system. Check that the ignition key cylinder illumination lamp illuminates/extinguishes normally. 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.

[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - IGNITION KEY CYLINDER ILLUMINATION LAMP - INSPECTION PROCEDURE J-1: The ignition key cylinder illumination lamp does not illuminate/extinguish normally. | PRINT PAGE / INDEX / PRIOR / NEXT

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