Work Procedure

DESCRIPTION 

When replacing the power steering control module, the procedures of BEFORE REPLACEMENT and AFTER REPLACEMENT must be performed. For work procedure, refer to the following:

• Before power steering control module replacement.
• After power steering control module replacement.

BEFORE REPLACEMENT 

When replacing the power steering control module, save "Operation log".

AFTER REPLACEMENT 

After replacing the power steering control module, the following items must be performed:

• Power steering control module programming.
• Adjust the neutral position of steering angle sensor.

WORK PROCEDURE (BEFORE REPLACING POWER STEERING CONTROL MODULE) 

1. SAVE "OPERATION LOG" 

   With CONSULT Save "Operation Log", according to the procedure of "Programming" in CONSULT Operation Manual.

   NOTE: Power steering control module part number is saved in "Operating Log" saved in CONSULT.

   >>

   • Replace the power steering control module. Refer to Removal and Installation .
   • After replacing the power steering control module, perform necessary work.

WORK PROCEDURE (AFTER REPLACING POWER STEERING CONTROL MODULE) 

1. CHECK "OPERATION LOG" 

   With CONSULT Check "Operation Log" saved before replacing the power steering control module, according to the procedure of "Programming" in CONSULT Operation Manual.

   NOTE: For the vehicle that the programming is to be performed, check if "Operation Log" of Vehicle Identification Number (VIN) is in Saved Data List.

   Is there an applicable Operation Log in the Saved Data List?

   YES>>

   GO TO 2.

   NO>>

   GO TO 3.

2. PERFORM POWER STEERING CONTROL MODULE PROGRAMMING 

   With CONSULT Perform power steering control module programming, according to "Programming" of CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   CAUTION:

   During programming, maintain the following conditions:

   • Ignition switch: ON
   • Electric load: OFF
   • Steering wheel: Not steering
   • 12 V battery voltage: 12 - 13.5 V (Check the value displayed on the CONSULT screen.)
   • Vehicle speed: 0 km/h

   >>

   GO TO 5.

3. READ IN POWER STEERING CONTROL MODULE PART NUMBER BY "EPC LINKED" 

   Obtain power steering control module part number by EPC (service parts catalog) according to the procedure of 'EPC linked' in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   CAUTION:

   Be sure to select "EPC linked".

   NOTE: "EPC linked" allows an appropriate programming by obtaining ECU part number from EPC (service parts catalog) even when the part number cannot be obtained from the old ECU used before replacing with a new one.

   >>

   GO TO 4.

4. PERFORM PROGRAMMING (EPC LINKED) 

   With CONSULT Perform power steering control module programming according to the procedure of EPC linked in CONSULT Operation Manual. Refer to CONSULT Operation Manual.

   CAUTION:

   During programming, maintain the following conditions:

   • Ignition switch: ON
   • Electric load: OFF
   • Steering wheel: Not steering
   • 12 V battery voltage: 12 - 13.5 V (Check the value displayed on the CONSULT screen.)
   • Vehicle speed: 0 km/h

   >>

   GO TO 5.

5. PERFORM NECESSARY WORK 
   1. Perform adjustment of steering angle sensor neutral position. Refer to Description .
   2. Perform self-diagnosis for "EPS/DAST 3".
   3. Erase the memory of self-diagnosis results.

   >>

   End of work.