Sunday, December 11, 2011

My Mitsubishi Triton trouble about SRS system with clock spring.

My Mitsubishi Triton trouble about SRS system with clock spring.
       My car showed SRS warning lamp. I use M.U.T.-III connect ecu for check error code. The result is problem at clock spring unit. The SRS-ECU diagnoses the following items and stores a diagnosis code in the non-volatile memory (EEPROM*1) when a problem is detected. Therefore, the memory is not deleted after a battery terminal is disconnected. (The diagnosis code memory can be deleted by the M.U.T.-III).

SRS warning lamp still show (Upper from Mitsubishi manual)

      If the SRS lamp still show after start engine the air bag and seat belt with pre-tensioner system will not work. So it's very dangerous when a crash.

Clock spring is??? 
     The clock spring set up between the steering column and steering wheel. And function is a special rotary electric connection between SRS ECU and air bag module. Because air bag module locate on steering wheel and it make streering wheel turn around.
Clock spring position (Mitsubishi manual)

     I change clock spring part at Mitsubishi service center. And I disassemble it shown with lower picture. The clock spring consist ribbon cable, connector and rotary part for keep ribbon cable.

Clock spring (Upper)  Inside clock spring (Lower)

Caution on clock spring
CAUTION: SRS CLOCK SPRING PLEASE DO NOT TURN EXCEPT WHEN REQUIRED. THIS IS NOT A REPAIRABLE PART. IF DEFECTIVE, PLEASE REPLACE ENTIRE UNIT ACCORDING TO THE SERVICE MANUAL INSTRUCTIONS. ALIGNMENT OF MODULES IS NECESSALY WHEN THEY ARE ADJUSTED AND/OR INSTALLED FOR THE ALIGNMENT PROCEDURES, FOLLOW THE SERVICE MANUAL INSTRUCTIONS.

Remark :When remove SRS system part must disconnect battery terminal before. 

Thank you for reading my blog. If you have any question please comment.


3 comments:

  1. Yeah.... same thing happend to my Triton 2.5 last two days. But am so surprice coz Hilux km more than 170K/km the SRS clock still ok but my Triton Mileage reach aT 126K the units was mulfunctiioning.

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  2. Thank you for your experience. I think other than life time of it. Some cause reduce lite time that from usability character for each people. My triton use in jungle for one times in month.

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  3. Where I can buy this clock spring?

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