Daewoo MATIZ User Manual

ENGINE CONTROLS 1F–85
DAEWOO M-150 BL2
DTC P0131 – Oxygen Sensor Low Voltage
Step Action Value(s) Yes No
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the system check complete?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Connect the scan tool to the data link
connector(DLC).
2. Run the engine until it reaches operating
temperature.
3. Check for closed loop operation.
Does the engine control module(ECM) go into
closed loop?
–
Go to Step 3 Go to Step 9
3
1. Run the until until it reaches operating
temperature?
2. Run the engine at 1,200rpm.
Does the scan tool read the upstream oxygen(O
2
)
sensor signal voltage between the valve specified? 0.15~0.7V Go to Step 5 Go to Step 4
4
Does the scan tool read the Oxygen sensor signal
voltage fixed below the valve specified?
0.01V Go to Step 7
Go To
“Diagnostic
Aids”
5
1. Disconnect the Oxygen sensor connector.
2. Run the warm engine at idle.
Does the scan tool read the Oxygen sensor signal
voltage between the valve specified? 0.15~0.7V
Go To
“Diagnostic
Aids”
Go to Step 6
6
1. Turn the ignition switch to LOCK.
2. Check the Oxygen sensor wire between the
Oxygen sensor and the ECM connector terminal
77 and 13 is open.
Is the problem found?
–
Go to Step 8 Go to Step 11
7
1. Turn the ignition switch to LOCK.
2. Check the Oxygen sensor wire between the
Oxygen sensor and the ECM connector terminal 77
for a short to ground.
Is the problem found?
–
Go to Step 8 Go to Step 11
8
1. Repair the wire or the connector terminal as
needed.
2. Clear the any DTCs from the ECM.
3. Road tests the vehicle.
4. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
9
1. Turn the ignition switch to LOCK.
2. Disconnect the Oxygen sensor connector.
3. Turn the ignition switch to ON.
Does the scan tool the Oxygen sensor signal voltage
between the valve specified? 0.15~0.7V Go to Step 11 Go to Step 10
10
1. Replace the Oxygen sensor.
2. Clear the DTCs from the ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
11
1. Replace the ECM.
2. Perform the diagnostic system check.
Is the repair complete?
–
Go to Step 12
–

Daewoo MATIZ Specifications

General

Brand	Daewoo
Model	MATIZ
Category	Automobile
Language	English