5.
Are any DTCs recorded ?
▶ Go to the DTC guide of recorded NO. in Scantool.
▶ System operates within specification.
Because both A/T and M/T fuel control map is inputted in one type of ECM and selecting option is possible, one type is applied to both A/T and M/T option.When ECM is installed to vehicle, A/T and M/T recognition is performed by ECM automatically as checking whether ground line(ECM connector C230-K terminal 81) is grounded or opened.(A/T and M/T recognition is performed every IG KEY ON process.) If A/T, M/T recognition is not fulfilled well or any error occurs during the process, engine power generation is not sufficient and glow lamp on cluster blinks.
A/T : ECM connector C230-K terminal 81 is grounded
M/T : ECM connector C230-K terminal 81 is opened(no wiring exists)
P1586 is set when recognized A/T, M/T data based on ECM C230-K terminal 81 state(grounded or opened) is not readable or writable at EEP ROM. This code is due to ECM failure.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy | ● software monitoring | ● ECM component failure | ||
Enable Conditions | ● IG KEY "ON" | |||
Threshold Value | ● A/T, M/T learning error (when data writing on EEPROM inside of ECM is impossible) | |||
Diagnostic Time | ● At the point of ECU initialization | |||
Fail Safe | Fuel cut | NO | ● Glow Lamp blinks. | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
ECM Component Inspection
IG KEY "OFF", ENGINE "OFF".
Disconnect ECM.
Replace ECM, check if abnormal operations disappear.
If problems are corrected, replace ECM.
Input injector IQA data(7 letters) using scantool at replacing ECM.
Enter the driving distance - how many km the CPF is used- into New ECM with scanner.
For immobilizer applied vehicle, input pin code.
After a repair, it is essential to verify that the fault is corrected.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
Clear recorded DTC using Scantool.
Drive the vehicle within DTC "Enable conditions" in "General information".
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
Are any DTCs recorded ?
▶ Go to the DTC guide of recorded NO. in Scantool.
▶ System operates within specification.
