[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - TONE ALARM - INSPECTION PROCEDURE B-5: Turn-signal lamp operation sound function does not work normally. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE B-5: Turn-signal lamp operation sound function does not work 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. Ignition switch (IG1) Turn-signal lamp switch Hazard warning lamp switch If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective. Note that this function can be disabled/enabled by the customize function (default setting; disabled). In order to change the setting, the SWS monitor is required.
| POSSIBLE CAUSES Malfunction of the column switch Malfunction of the hazard warning lamp switch Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Pulse check Check the input signals below, which are related to the turn-signal lamp operation sound function.
System switch | Check conditions
--- | ---
Ignition switch (IG1) | When turned from ACC to ON
Turn-signal lamp switch (RH) | When the turn-signal lamp switch (RH) is turned from off to on
Turn-signal lamp switch (LH) | When the turn-signal lamp switch (LH) is turned from off to on
Hazard warning lamp switch | When the hazard warning lamp switch is turned from off to on
OK: The MUT-II/III sounds or the voltmeter needle fluctuates. Q: Are 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 turn-signal lamp switch (RH) signal is not received.: Refer to inspection procedure P-5 "The column switch (lighting and turn-signal lamp switch) signal is not received" . The turn-signal lamp switch (LH) signal is not received.: Refer to inspection procedure P-5 "The column switch (lighting and turn-signal lamp switch) signal is not received" . The hazard warning lamp switch signal is not received.: Refer to inspection procedure P-12 "The hazard warning lamp switch signal is not received" .
| Step 2. Check the SWS monitor customized function. Use the SWS monitor customize function to confirm that "T/SIG.BUZZER" is set to "W.FUNCTION". CAUTION The SWS monitor must be used in order to confirm and change that setting. Use the SWS monitor to confirm and/or change the customized function. Q: Is the check result normal? YES: Go to Step 3. NO: Use the SWS monitor customize function to set "T/SIG.BUZZER" to "W.FUNCTION" (Refer to GROUP 54C - Adjustment function ).
| Step 3. Retest the system. Check that the turn-signal lamp operation sound function works 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.

[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - TONE ALARM - INSPECTION PROCEDURE B-5: Turn-signal lamp operation sound function does not work normally. | PRINT PAGE / INDEX / PRIOR / NEXT

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