Component Location
General Description

The purpose of the System Voltage is to detect an excessively low or high system voltage that may be caused by a malfunctioning charging system.

DTC Description

System Voltage is the ignition voltage potential at the Powertrain Control Module (PCM). PCM measures and compares voltage from ignition key and each relay. With this mechanism, PCM knows if the main relay switch turns on after IG on or if turns OFF after IG off.

During engine running, if battery voltage is below 11V, PCM sets P0562. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till cosecutive 2 driving cycle.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

● Voltage too low

● Poor connection

● Open in power circuit

● Faulty charging system

● Faulty main relay

● Faulty PCM

Enable Conditions

● Engine works

● 11V ≤ Battery voltage ≤ 16V

Threshold value

● System voltage < 11V

Diagnosis Time

● Continuous

MIL On Condition

● 2 driving cycles

Specification

Coil Resistance

70Ω ~ 120Ω

Schematic Diagram
Яндекс.Метрика