Capacitor Voltage Malfunction | ||
DTC | P1646 | Booster voltage too high |
P1647 | Booster voltage too low | |
The Engine control module (ECM) is installed in the passenger compartment to protect it from external. The ECM with a lot of chips and circuits processes the input signals according to control algorithms. Capacitor in the ECM charges for activating the injectors.
DTC No | Detecting Condition & Limp Home | Suspected area |
P1646 P1647 | Detecting Condition P1646 : Voltage of capacitor is too high. P1647 : Voltage of capacitor is too low. Limp Home None (Engine stops) | - ECM |
● Cancel the fault memory and perform test drive. ● If the fault cannot be cancelled, temporarily install a good ECM and check for proper operation. If problem is corrected, replace ECM. |
