[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-5: The column switch (lighting and turn-signal lamp switch) signal is not received.PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE P-5: The column switch (lighting and turn-signal lamp switch) signal is not received.
 CAUTION
 Whenever the ECU is replaced, ensure that the input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
Input signal from the column switch (lighting switch) is used to operate the functions below. If the signal is abnormal, these functions will not work normally.
  • Lamp reminder function
  • Turn-signal lamp operation sound function
  • Headlamp and tail lamp
  • Turn signal lamp
  • Fog lamp
POSSIBLE CAUSES
  • Malfunction of the column switch
  • Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the column switch connector.
Check that the wiper and washer switch connector, the lighting switch connector and the switch body connector are in good condition.
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Repair the defective connector.
Step 2. Check the column switch (lighting switch and switch body).
Refer to GROUP 54A - Column switch .
Q: Is the check result normal?
YES:  Go to Step 3.
NO:  Replace the column switch.
Step 3. ECU check on the SWS monitor
Check that the power supply and earth lines to the column switch (column-ECU) and the SWS communication lines are normal.
  • Ignition switch: OFF
ECUS TO BE CHECKED
  • Column-ECU
OK: "OK" is displayed on the "COLUMN ECU" menu.
Q: Is the check result normal?
YES:  Go to Step 4.
NO:  Refer to Inspection Procedure A-2 "Communication with the column switch (column-ECU) is not possible" .
Step 4. Confirm communication data by using the SWS monitor.
<Selected item> COLUMN ECU
  • Operate each function of the switch.
Item No.
 Item name
 Normal conditions
Item 00
 HEADLAMP SW
 ON
Item 01
 TAIL LAMP SW
 ON
Item 02
 DIMMER SW
 ON
Item 03
 PASSING SW
 ON
Item 10
 TURN SIG. RH
 ON
Item 11
 TURN SIG. LH
 ON

OK: Normal conditions are displayed for all the functions of the switch.
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 column switch.
[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-5: The column switch (lighting and turn-signal lamp switch) signal is not received.PRINT PAGE / INDEX / PRIOR / NEXT
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