The vehicle speed sensor is a hall sensor type. The vehicle speed sensor is build into the speedometer and converts the transaxle gear revolutions into the pulse signals, which are sent to ECM. This pulse signal is fed to ECM to be used to determine the vehicle driving or stop condition including the vehicle speed. The vehicle speed sensor provides ECM with information on the gear position in the manual transmission vehicle and on the gear shifting in the auto transaxle vehicle after computing the engine speed and the vehicle speed signal.
If the ECM does not receive a signal from the vehicle speed sensor but other indicators show that the vehicle is moving during two driving cycles, this code will be set.
DTC NO. | Detecting Condition | Possible Cause |
C 002 C 004 | ● C 002 ① Error is recognized if the vehicle speed sensor signal is detected too high frequency. ② Error is recognized if the vehicle speed signal is detected above 220 Km/h of the maximum velocity correlatively computed by the ECM ● C 004 Error is recognized if the vehicle speed signal is detected below 15 Km/h when the engine speed is above 3500 rpm and the injection quantity is above 45 cc ● Engine Condition : RUN ● Fuel Limit : NO ● Fuel Cut : NO ● EGR OFF : NO ● MIL : NO ● LIMP HOME MODE ① Clutch error monitoring deactivited ② Cruise control system and error monitoring deactivited ③ Idle compensation deactivited in case of the lack of battery voltage | ● Open or short in circuit ● Fuse ● VSS ● ECM |
