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 erminal 81 is grounded
M/T : ECM connector C230-K terminal 81 is opened(no wiring exists)
P1588 is set when the signal from A/T, M/T auto recognition terminal(ECM C230-K terminal 81) 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
? Engine running
Threshold Value
? A/T, M/T auto recognition signal changes at engine ON.
Diagnostic Time
? 0.6 sec.
Fail Safe
Fuel Cut
NO
? Glow Lamp blinks.
EGR Off
Fuel Limit
Check Lamp