Speedometer Check
CAUTION:
Since the diagnostic trouble code may be stored in the ABS-ECU when checking the speedometer with speedometer tester, erase the diagnostic trouble code.
CAUTION:
Do not accelerate or decelerate suddenly during servicing work.
- Adjust the pressure of tires to the specified level (Refer to ON-VEHICLE SERVICE ).
- Where applicable, ensure that the TPMS warning light is not illuminating or flashing.
- <Vehicles with TCL> Press the TCL switch to stop the TCL operation.CAUTION: Set a free-roller on the rear tire for AWD.
- For FWD vehicles, set the vehicle onto a speedometer tester and use wheel chocks to hold the rear wheels.
- For AWD vehicles, set the vehicle onto a speedometer tester and place the rear wheels on a free roller.
- To prevent the front wheel from moving from side to side, attach tension bars to the tie-down hook, and secure both ends to anchor plates.
- To prevent the vehicle from moving, attach a chain or wire to the rear retraction hook, and make sure the end of the chain or wire is secured.
- Check if the speedometer indicator range is within the standard values.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Standard value:
STANDARD VALUE CHARTSTANDARD INDICATION mph (km/h) ALLOWANCE RANGE mph (km/h) 10 (16) 10 ± 1.5 (16 ± 2.4) 25 (40) 25 ± 1.5 (40 ± 2.4) 50 (80) 50 ± 1.5 (80 ± 2.4) 75 (120) 75 ± 1.5 (120 ± 2.4) 100 (161) 98.5 - 102.5 (158.5 - 165.0) - 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 output shaft speed sensor and the combination meter. Check the following items.
- output shaft speed sensor (refer to DIAGNOSTIC TROUBLE CODE CHART ).
- combination meter (refer to INSPECTION PROCEDURE 6: SPEEDOMETER DOES NOT WORK. INSPECTION PROCEDURE 7: THE FUEL GAUGE NEEDLE MOVES EXCESSIVELY. ).