Vehilcles have many options in one type of ECM. So automatic recognition function is applied. The options that can be recognized are MT/AT, 2/4WD, DPF, etc). When a ECM is installed to vehicle, these options recognition are performed by the ECM automatically as checking whether ground line is grounded or opened every IG KEY ON process.
If this recognition is not fulfilled well or any error occurs during the process, engine power generation is not sufficient and glow lamp on cluster blinks.
If a system is intalled, the ECM connector is grounded.
Else is opened (no wire exists).
P1588 is set when the signal from A/T, M/T auto recognition terminal changes during engine running. This code is due to open in terminal for A/T option, grounded condition for M/T option. This code is normally arises from A/T option vehicle. Check the grounding condition of A/T, M/T auto recognition terminal.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
A/T, M/T recognition terminal circuit
•
ECM component failure | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold value |
•
A/T, M/T auto recognition signal changes | |||
Diagnosis Time |
•
1sec. | |||
Fail Safe | Fuel cut | NO |
•
Glow lamp blinking | |
EGR Off | NO | |||
Fuel Limit | NO | |||
MIL | OFF | |||
