Component Location
General Description

There are two transformer for injector operation in side of ECM. 1 pilot and 1 main injection are operated by ECM in EURO 3 diesel engine therefore one transformer device is sufficient to control injector however, 2 pilot and if CPF is applied, 2 post injection are performed additionally by ECM in EURO 4 diesel engine thus, two transformer is required.

DTC Description

P062D is set when the problem of transforming system 1 for injector contol occurs. This code is due to the failure of transforming system inside of ECM.

※ If battery voltage is low, this code can be set. Therefore, beforehand, check DTC code relevant to battery voltage and charging system.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Voltage monitoring

● injector circuit

● ECM internal error

Enable Conditions

● Engine running

Threshold Value

● Power stage error for injector voltage control, CPU circuit failure

● Disable to distingish which cylinder is failed by resulting of multiple of random injectors failure.

Diagnostic Time

● Immediately

Fail Safe

Fuel Cut

YES

EGR Off

NO

Fuel Limit

NO

Check Lamp

ON

Specification

Injector Component Resistance

Injector Operating Voltage

Injector Operating Current

Injector Control Type

0.255 ±0.04Ω (20℃)

80V

Peak current : 18±0.5A

Current control

Hold in current : 12±0.5A

Schematic Diagram
note
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Signal Waveform
Яндекс.Метрика