Speedometer Check

CAUTION:

Since the DTC may be stored in the ASC-ECU when checking the speedometer with speedometer tester, erase the DTC.
Do not accelerate or decelerate suddenly during servicing work.

Adjust the pressure of tires to the specified level (Refer to TIRE INFLATION PRESSURE CHECK ).
Press the ASC OFF switch for 3 seconds or more to stop the ASC operation.
Set the vehicle onto a speedometer tester and use wheel chocks to hold the rear wheels.

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
To prevent front wheel lateral runout or vehicle sudden start, attach a chain or wire to the front and rear towing hooks and fix the other end of the chain or wire to the anchor plate.

Check that the speedometer indicating range is within the standard value and the needle fluctuation is within the limit value.

Standard value <Except vehicles for Canada>:

Standard indication {mph (km/h)}	Indication tolerance {mph (km/h)}
25 (40)	23.5 - 26.5 (40.5 - 44.5)
50 (80)	48.5 - 51.5 (81.5 - 86.5)
75 (120)	73.5 - 76.5 (122.5 - 128.5)
100 (160)	98.5 - 102.5 (162.5 - 169.5)

Standard value <Vehicles for Canada>:

standard indication {km/h (mph)}	Indication tolerance {km/h (mph)}
40 (25)	40.5 - 44.5 (25.5 - 28.5)
80 (50)	81.5 - 86.5 (50.5 - 53.5)
120 (75)	122.5 - 128.5 (76.0 - 78.0)
160 (100)	162.5 - 169.5 (101.5 - 106.5)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

If not within the standard value, check the tire size. If an incorrect size of tire is used, replace it and check again. If the tire size is correct, a defect may be present in components and circuit between the ASC and the combination meter. Check the following items.
- ASC (Refer to DIAGNOSTIC TROUBLE CODE CHART ).
- Combination meter (refer to CHECK OF FREEZE FRAME DATA ).