IMMOBILIZER ANTI-THEFT SYSTEM 9T–23
DAEWOO M–150 BL2
P 1629 – ECM Immobilizer Error (Incorrect Answer)
StepActionValueYesNo
1
Connect the scan tool using the following procedure:
1. Insert the cartridge into the scan tool.
2. Turn the ignition switch to the OFF.
3. Connect the scan tool to the data link connector
(DLC).
4. Connect the scan tool’s power cord to the cigar
lighter socket.
5. Turn the ignition ON, but do not start the engine.
Is communication established between the scan tool
and the immobilizer control unit?
–
Go to Step 2
Go to
“Communi-
cation
Between
Immobilizer
and Test
Equipment”
2
1. Select DIAGNOSIS from the scan tool menu.
2. Read the IMMO & ECM ID CODE (immobilization
and electronic control module identification code)
message.
Did the message differ from normal message?
Normal Message –ECM MODE: LEARNT
IMMO. MODE: LEARNT
VIN CODE: SAME
–Go to
“Identification
(ID) Code
Repro-
gramming”
Go to Step 3
3
1. Replace the ECM.
2. Reprogram the ID code.
Is the repair complete?
–
System OK
–
Go to Step 4
4
1. Replace the ECM.
2. Turn the ignition ON, OFF for more than 4
seconds.
3. Turn the ignition ON.
Is the repair complete?
–
System OK
–
