DTC Description

Rail pressure is controlled by 1)only RPRV or 2)both RPRV and FPRV or 3)only RPRV depending on engine condition. These three modes are called ‘CPC mode’. During transition from one mode to another mode, if rail pressure is above the maximum rail pressure for each certain engine condition for more than 300ms. P1172 is set then, rail pressure is controlled by RPRV alone.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Signal monitoring

1.

ECM internal error

2.

RPRV component

3.

FPRV component

4.

RPS componet

Enable Conditions

Engine running

Threshold Value

If rail pressure is below the minimum rail pressure for each certain engine condition

Diagnostic Time

0.3 sec

Fail Safe

Fuel Cut

NO

-

EGR Off

NO

Fuel Limit

NO

Check Lamp

NO

Яндекс.Метрика