1F–26 ENGINE CONTROLS
DAEWOO M-150 BL2
Engine Cranks But Will Not Run (Cont’d)
Step Action Value(s) Yes No
12
Check for an open or short in the wires between
CKP sensor connector and ECM connector and
repair as need.
Is the repair complete?
–
Go to Step 2
–
13
1. Disconnect electronic Ignition (EI) system ignition
coil connector to prevent the vehicle from starting.
2. Measure the voltage at ECM connector terminal
24 and 54 by backprobing the ECM connector.
Are the voltage readings near the value specified?
0.4 V with
ignition ON,
2.0 V during
cranking
Go to Step 15 Go to Step 14
14
Replace the CKP sensor.
Is the repair complete?
–
Go to Step 2
–
15
1. Turn the ignition OFF.
2. Disconnect the electrical connector at EI system
ignition coil.
3. Connect a test light between terminal 1 of the EI
system ignition coil connector and ground.
4. Turn the ignition ON.
Is the test light on?
–
Go to Step 17 Go to Step 16
16
Check for open in wire between the battery and EI
system ignition coil connector terminal 1 and repair
as needed.
Is the repair complete?
–
Go to Step 2
–
17
1. Turn the ignition OFF.
2. Disconnect ECM connector and EI system
ignition coil connector.
3. Measure the resistance between following
terminals:
D Terminal 2 of ignition coil and terminal 1 of
ECM connector.
D Terminal 3 of ignition coil and terminal 32 of
ECM connector.
D Terminal 4 of ignition coil and terminal 31 of
ECM connector.
Are the resistance within the value specified? 0 Ω Go to Step 19 Go to Step 18
18
Check for open circuit and repair as needed.
Is the repair complete?
–
Go to Step 2
–
19
1. Measure the resistance between following
terminals:
D Terminal 1 and 2 of ignition coil.
D Terminal 3 and 4 of ignition coil.
Are the resistance within the value specified?
2. Remove the high tension cable.
3. Measure the resistance between second coil.
D Between 1 and 4
D Between 2 and 3
Are the resistance within the value specified?
0.9Ω
5.3 kΩ Go to Step 21 Go to Step 20
20
Replace the EI system ignition coil.
Is the repair complete?
–
Go to Step 2
–
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