4WAS Warning Lamp

4WAS WARNING LAMP

Diagnosis Procedure


1. PERFORM UNIFIED METER AND A/C AMP. SELF-DIAGNOSIS

With CONSULT
Perform the self-diagnosis for "METER/M&A".
Is any error system detected?
YES- Check the error system. Testing and Inspection.
NO- GO TO 2.

2. PERFORM SELF-DIAGNOSIS (4WAS MAIN CONTROL UNIT)

With CONSULT
Perform self-diagnosis for "4WAS(MAIN)/RAS/HICAS".
Is DTC "U1000" or "U1010" detected?
YES- Check the error system. Steering Control System With 4WAS (U1000), {LINK_TO_MANY:0000000006885905}{LINK_TO_MANY:0000000006885906}{LINK_TO_MANY:0000000006885907}{LINK_TO_MANY:0000000006885908}, "Diagnosis
Procedure" (U1010).
NO- GO TO 3.

3. CHECK 4WAS WARNING LAMP SIGNAL

With CONSULT
1.Turn the ignition switch ON.

CAUTION:
Never start the engine.
2.Check "WARNING LAMP" item on DATA MONITOR for "4WAS(MAIN)/RAS/HICAS".
Does the item on "DATA MONITOR" indicate "On"?
YES- GO TO 4.
NO-Replace 4WAS main control unit. 4WAS Main Control Unit.
- Before replacing 4WAS main control unit, record the self-diagnose results(history). .

4. CHECK COMBINATION METER

With CONSULT
Perform the trouble diagnosis of the combination meter. Power Supply And Ground Circuit.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace the combination meter. Removal And Installation.


Special Repair Requirement

Before replacing 4WAS main control unit, record the self-diagnosis results (history).

CAUTION:
- Never erase the memory (history) of self-diagnosis results when replacing 4WAS main control unit after diagnosis.
- Erase the memory of the self-diagnosis results (record) after printing out or recording all the values of "DATA MONITOR".