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P0605 Internal Control Module Read Only Memory(ROM) Error

AutoHex Online Help: Hyundai SANTAFE(CM) 2011
Component Location
General Description

ECM is activated by power supply. Signals from several sensors, such as CKPS and APS, is inputted to ECM. Comparing inputted signals with control LOGIC saved at micro controller and EEPROM, ECM controls engine as actuating injectors, solenoids and relays. To guarantee accurate control, ECM performs SELF TEST, DIAGNOSIS of several sensors and actuators. And if serious trouble which affects vehicle performance occurs, ECM sets DTCs. At certain cases, ECM shuts down whole systems in order to prevent dangerous situation due to incorrect control.



DTC Description

P0605 is set when 1) communication error between micro controller inside of ECM and EEP ROM is detected or 2) a different vision of ECM is installed.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

EEPROM monitoring

Version difference between ECM and ECM communication module

ECM component failure

Enable Conditions

Engine running

Threshold Value

EEPROM communication error : Communication failure between micro controller inside of ECM and EEPROM.

Each data range is activated abnormally.

Self test about optional devices (A/C, immobilizer, cruise control).

Diagnostic Time

Immediately

Fail Safe

Fuel cut

YES

-

EGR Off

NO

Fuel Limit

NO

MIL

OFF