1F–22 ENGINE CONTROLS
DAEWOO M-150 BL2
Multiple ECM Information Sensor DTCs Set
Step Action Value(s) Yes No
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the check complete.
–
Go to Step 2
Go to “Euro
On-Board
Diagnostic
System Check”
2
1. Turn the ignition OFF and disconnect the Engine
Control Module (ECM).
2. Turn the ignition ON and check the 5 volt
reference circuit for the following conditions:
D Poor connection at the ECM.
D Open between the ECM connector affected
sensors shorted to ground or voltage.
3. If a problem is found, locate and repair the open
or short circuit as necessary.
Is a problem found?
–
Go to Step 19 Go to Step 3
3
1. Check the sensor ground circuit for the following
conditions:
D Poor connection at the ECM or affected
sensors.
D Open between the ECM connector and the
affected sensors.
2. If a problem is found, repair it as necessary.
Is a problem found?
–
Go to Step 19 Go to Step 4
4
Measure the voltage of the Electric Exhaust Gas
Recirculation (EEGR) Pintle Position Sensor signal
circuit between ECM harness connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 5 Go to Step 9
5
Measure the voltage of the Manifold Absolute
Pressure (MAP) sensor signal circuit between the
ECM harness connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 6 Go to Step 11
6
Measure the voltage of the Throttle Position (TP)
sensor signal circuit between the ECM harness
connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 7 Go to Step 12
7
Measure the voltage of the Intake Air Temperature
(IAT) sensor signal circuit between the ECM harness
connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 8 Go to Step 13
8
Measure the voltage of the Engine Coolant
Temperature (ECT) sensor signal circuit between the
ECM harness connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 16 Go to Step 14
9
1. Disconnect the EEGR valve.
2. Measure the voltage of the EEGR Pintle Position
sensor signal circuit between the ECM harness
connector and ground.
Does the voltage measure near the specified value? 0 V Go to Step 10 Go to Step 15
10
Replace the EEGR valve.
Is the repair complete?
–
Go to Step 19
–
11
Locate and repair the short to voltage in the MAP
sensor signal circuit.
Is the repair complete?
–
Go to Step 19
–