[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-16: The vehicle speed signal is not received. <Except vehicles for GCC>PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE P-16: The vehicle speed signal is not received. <Except vehicles for GCC>
 CAUTION
 Whenever the ECU is replaced, ensure that the input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
The vehicle speed signal is used to operate the Windshield wiper and washer (vehicle speed-dependent wiper function). If the signal is abnormal, the function will not work normally.
POSSIBLE CAUSES
  • Malfunction of the engine-A/T-ECU
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check if the A/T related diagnosis code is set.
Q: Is the diagnosis code set?
YES:  Diagnose the automatic transmission control system. (Refer to GROUP 23 - Troubleshooting )
NO:  Go to Step 2.
Step 2. Connector check: C-110 engine-A/T-ECU connector and C-219 ETACS-ECU connector
Q: Is the check result normal?
YES:  Go to Step 3.
NO:  Repair the defective connector.
Step 3. Check the wiring harness between C-110 engine-A/T-ECU connector terminal No.80 and C-219 ETACS-ECU connector terminal No.63.
NOTE: Prior to the wiring harness inspection, check joint connector C-02 <LH drive vehicles> and intermediate connector C-105, and repair if necessary.
  • Check the input line for open circuit.
Q: Is the check result normal?
YES:  Go to Step 4.
NO:  Repair the wiring harness.
Step 4. Check the speedometer.
Check that the speedometer works normally.
Q: Is the check result normal?
YES:  Go to Step 5.
NO:  Replace the engine-A/T-ECU.
Step 5. Pulse check
Check the vehicle speed signal.
System switch
 Check condition
Vehicle speed signal
 When the vehicle speed has reached 10 km/h or more

OK: The MUT-II/III sounds or the voltmeter needle fluctuates.
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.
[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - INPUT SIGNAL PROCEDURES - INSPECTION PROCEDURE P-16: The vehicle speed signal is not received. <Except vehicles for GCC>PRINT PAGE / INDEX / PRIOR / NEXT
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