Posted in Mitsubishi Colt

P0500 – Vehicle Speed Signal System MMC Colt

 Posted by  Posted on September 26, 2020

FUNCTION

  • The vehicle speed signals are input to engine-ECU from ABS-ECU <Vehicle without TCL/ASC> or TCL/ASC-ECU <Vehicle with TCL/ASC> through CAN communication.

    • TROUBLE JUDGMENT

  • 2 seconds later after the engine has started up
  • Engine speed: 2,500 r/min or more
  • Under the high load operation
  • The vehicle speed, calculated by the information of the wheel speed received from the ABS-ECU <Vehicles without TCL/ASC system> or ABS/ASC-ECU <Vehicles with TCL/ASC system>, is not charged.

    • PROBABLE CAUSES

  • Failed ABS-ECU <Vehicle without TCL/ASC>
  • Failed CAN
  • Failed TCL/ASC-ECU <Vehicle with TCL/ASC>
  • Failed engine-ECU

    • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III diagnosis code

    Q. Is diagnosis code related with CAN communication displayed?

    STEP 2. M.U.T.-III other system diagnosis code

  • Confirm whether the diagnosis codes are output from ABS-ECU <Vehicle without TCL/ASC> or TCL/ASC-ECU <Vehicle with TCL/ASC>.

    • Q. Is the diagnosis code output?

    Author: admin