Speedometer Check

WARNING: This page is about a different car, the 2014 Mitsubishi Mirage. However, it is still accessible from the selected car via links, so may be relevant.

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 ON-VEHICLE SERVICE ).
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.

Fig 1: Setting Vehicle Onto Speedometer Tester
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 (VEHICLES FOR USA)

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)

Fig 2: Attaching Chain And Wire To Front And Rear Towing Hooks

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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 (10 1.5 - 106.5)

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 DIAGNOSTIC TROUBLE CODE CHART ).