M31f2 Engine Controls 55-151.pdf

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ENGINE CONTROLS 1F – 55
DIAGNOSTIC TROUBLE CODE DIAGNOSIS
CLEARING TROUBLE CODES
Notice: To prevent Engine Control Module (ECM) dam-
age, the key must be OFF when disconnecting or recon-
necting the power to the ECM (for example battery
cable, ECM pigtail connector, ECM fuse, jumper cables,
etc.).When the ECM sets a Diagnostic Trouble Code
(DTC), the Malfunction Indicator Lamp (MIL) lamp will
be turned on only for type A, B and E but a DTC will be
stored in the ECM’s memory for all types of DTC. If the
problem is intermittent, the MIL will go out after 10 sec-
onds if the fault is no longer present. The DTC will stay
in the ECM’s memory until cleared by scan tool. Remov-
ing battery voltage for 10 seconds will clear some stored
DTCs.
DTCs should be cleared after repairs have been com-
pleted. Some diagnostic tables will tell you to clear the
codes before using the chart. This allows the ECM to set
the DTC while going through the chart, which will help to
find the cause of the problem more quickly.
DIAGNOSTIC TROUBLE CODES
DTC
Function
Error Type
Illuminate MIL
P0107
Manifold Absolute Pressure Sensor Low Voltage
A
YES
P0108
Manifold Absolute Pressure Sensor High voltage
A
YES
P0112
Intake Air Temperature Sensor Low Voltage
E
YES
P0113
Intake Air Temperature Sensor High voltage
E
YES
P0117
Engine Coolant Temperature Sensor Low Voltage
A
YES
P0118
Engine Coolant Temperature Sensor High voltage
A
YES
P0122
Throttle Position Sensor Low Voltage
A
YES
P0123
Throttle Position Sensor Hig voltage
A
YES
P0131
Oxygen Sensor Low Voltage
A
YES
P0132
Oxygen Sensor High Voltage
A
YES
P0133
Oxygen Sensor No Activity
E
YES
P0137
Heated Oxygen Sensor Low Voltage
E
YES
P0138
Heated Oxygen Sensor high voltage
E
YES
P0140
Heated Oxygen Sensor No Activity
E
YES
P0141
Heated Oxygen Sensor Heater Malfuction
E
YES
P0171
Fuel Trim System Too Lean
E
YES
P0172
Fuel Trim System Too Rich
E
YES
P1230
Fuel Pump Relay Low Voltage
A
YES
P1231
Fuel Pump Relay High Voltage
A
YES
P0261
Injector 1 Low Voltage
A
YES
P0262
Injector 1 high voltage
A
YES
P0264
Injector 2 Low Voltage
A
YES
P0265
Injector 2 high voltage
A
YES
P0267
Injector 3 Low Voltage
A
YES
P0268
Injector 3 high voltage
A
YES
P0300
Multifle Cylinder Misfire
A/E
BLINKING/ON
P1320
Crankshatft Segment Period Segment Adaptation At Limit
E
YES
P1321
Crankshatft Segment Period Tooth Error
E
YES
P0327
Knock Sensor Circuit Fault
E
YES
P0335
Magnetic Crankshaft Position Sensor Electrical Error
E
YES
DAEWOO M-150 BL2
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1F – 56 ENGINE CONTROLS
Diagnostic Trouble Codes (Cont’d)
DTC
Function
Error Type
Illuminate MIL
P0336
58X Crankshaft Position Sensor Extra/missing Pulse
E
YES
P0337
58X Crankshaft Sensor No Signal
E
YES
P0341
Camshaft Position Sensor Rationality
E
YES
P0342
Camshaft Position Sensor No Signal
E
YES
P0351
Ignition Signal Coil A Fault
A
YES
P0352
Ignition Signal Coil B Fault
A
YES
P0353
Ignition Signal Coil C Fault
A
YES
P1382
Rough Road Data Invalid (Non ABS)
Cnl
NO
P1382
Rrough Road Data Invalid (ABS)
Cnl
NO
P1385
Rough Road Sensor Circuit Fault (Non ABS)
Cnl
NO
P1385
Rough Road Sensor Circuit Fault (ABS)
Cnl
NO
P0400
Exhaust Gas Recirculation Out of Limit
E
YES
P1402
Exhaust Gas Recirculation Blocked
E
YES
P1403
Exhaust Gas Recirculation Valve Failure
E
YES
P0404
Electric Exhaust Gas Recirculation (EEGR) Opend
E
YES
P1404
Electric Exhaust Gas Recirculation (EEGR) Closed
E
YES
P0405
EEGR Pintle Position Sensor Low Voltage
E
YES
P0406
EEGR Pintle Position Sensor High voltage
E
YES
P0420
Catalyst Low Efficiency
E
YES
P0444
EVAP Purge Control Circuit No Signal
E
YES
P0445
EVAP Purge Control Circuit Fault
E
YES
P0462
Fuel Level Sensor Low Voltage
Cnl
NO
P0463
Fuel Level Sensor High voltage
Cnl
NO
P0480
Low Speed Cooling Fan Relay Circuit Fault (Without A/C)
Cnl
NO
P0480
Low Speed Cooling Fan Relay Circuit Fault (With A/C)
Cnl
NO
P0481
High Speed Cooling Fan Relay High Voltage (Without A/C)
Cnl
NO
P0481
High Speed Cooling Fan Relay High Voltage (With A/C)
Cnl
NO
P0501
Vehicle Speed No Signal (M/T Only)
A
YES
P0505
Idle Air Control Valve (IACV) Error
E
YES
P1535
Evaporator Temperature Sensor High Voltage
Cnl
NO
P1536
Evaporator Temperature Sensor Low Voltage
Cnl
NO
P1537
A/C Compressor Relay High Voltage
Cnl
NO
P1538
A/C Compressor Relay Low Voltage
Cnl
NO
P0562
System Voltage (Engine Side) Too Low
Cnl
NO
P0563
System Voltage (Engine Side) Too High
Cnl
NO
P0601
Engine Control Module Checksum Error
E
YES
P0604
Engine Control Module RAM Error
E
YES
P0605
Engine Control Module NMVY Write Error
E
YES
P1610
Main Relay High Voltage
A
YES
P1611
Main Relay Low Voltage
A
YES
P1628
Immobilizer No Successful Communication
Cnl
NO
P1629
Immobilizer Wrong Computation
Cnl
NO
P0656
Fuel Level Gauge High Circuit Fault
Cnl
NO
DAEWOO M-150 BL2
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ENGINE CONTROLS 1F – 57
Diagnostic Trouble Codes (Cont’d)
DTC
Function
Error Type
Illuminate MIL
P1660
Malfunction Indicator Lamp(MIL) High Voltage
E
YES
P1661
Malfunction Indicator Lamp(MIL) Low Voltage
E
YES
DAEWOO M-150 BL2
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1F – 58 ENGINE CONTROLS
MAA1F060
DIAGNOSTIC TROUBLE CODE (DTC) – P0107
MANIFOLD ABSOLUTE PRESSURE SENSOR LOW VOLTAGE
Circuit Description
The engine control module (ECM) uses the Manifold Ab-
solute Pressure (MAP) sensor to control the fuel deliv-
ery and the ignition timing. The MAP sensor measures
the changes in the intake manifold pressure, which re-
sults from engine load (intake manifold vacuum) and the
rpm changes; and converts these into voltage outputs.
The ECM sends a 5 volt-reference voltage to the MAP
sensor. As the manifold pressure changes, the output
voltage of the MAP sensor also changes. By monitoring
the MAP sensor output voltage, the ECM knows the
manifold pressure. A low-pressure (low voltage) output
voltage will be about 1.0 to 1.5 volts at idle, while higher
pressure (high voltage) output voltage will be about 4.5
to 5.0 at wide open throttle (WOT). The MAP sensor is
metric pressure, allowing the ECM to make adjustments
for different altitudes.
The MAP is less than 15 kPA.
An open or low voltage condition exists.
Action Taken when the DTC Sets
The ECM will record operating conditions at the time
the diagnostic fails. This information will be stored in
the Freeze Frame and Failure Records buffers.
A history DTC is stored.
The coolant fan turns ON.
The ECM will substitutes a fixed MAP value and use
TP to control the fuel delivery (the scan tool will not
show defaulted)
The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.
Conditions for Setting the DTC
A history DTC will clear after 40 consecutive warm-up
cycles without a fault.
(Case A)
DTC(s) can be cleared by using the scan tool.
When the engine idling.
Diagnostic Aids
With the ignition ON and the engine stopped, the man-
ifold pressure is equal to atmosphere pressure and the
signal voltage will be high.
The ECM as an indication of vehicle altitude uses this
information. Comparison of this reading with a known
good vehicle with the same sensor is a good way to
check the accuracy of a suspect sensor. Readings
should be the same
No throttle position(TP) sensor fail conditions pres-
ent.
Engine speed(rpm) is less than 2,500rpm.
The MAP is less than 15kPA.
When the engine part load.
0.4volt.
If a DTC P 0107 is intermittent, refer to “Manifold Abso-
lute Pressure Check” in this Section for further diagno-
sis.
The engine revolution speed is less than 4,000rpm.
No Throttle Position (TP) Sensor fails conditions
present.
The Throttle Position (TP) angle greather than 20.0
DAEWOO M-150 BL2
The Malfunction Indicator Lamp (MIL) will illuminate.
Conditions for Clearing the MIL/DTC
This DTC can be stored in “key-on” status.
(Case A)
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ENGINE CONTROLS 1F – 59
If the connections are OK monitor the manifold absolute
pressure (MAP) sensor signal voltage while moving re-
lated connectors and the wiring harness. If the failure is
induced, the display on the scan tool will change. This
may help to isolate the location of an intermittent mal-
function.
DTC P0107 – Manifold Absolute Pressure 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
“On-Board
Diagnostic
System Check”
Go to Step 2
2
1. Connect the scan tool to the data link connector
(DLC).
2. Turn the ignition switch to ON.
Does the scan tool show the manifold absolute
pressure (MAP) sensor voltage above the value
specified?
4V
Go to Step 3
Go to Step 4
3
1. Disconnect the vacuum line from the MAP
sensor.
2. Apply 88kPA (20in.of Hg) of vacuum to the MAP
sensor.
Does the scan tool show the MAP sensor voltage
within the value specified?
Go to
“Diagnostic
Aids”
1.0–1.5V
Go to Step 4
4
1. Turn the ignition switch to LOCK.
2. Disconnect the MAP sensor connector.
3. Turn the ignition switch to ON.
4. Measure the voltage between the MAP sensor
connector terminals A and C.
Does the voltage measure within the value
specified?
4.5–5.0V
Go to Step 5
Go to Step 6
5
Connect a fused jumper between the MAP sensor
connector terminals B and C.
Does the scan tool show the MAP sensor voltage
above the value specified?
4V
Go to Step 11
Go to Step 9
6
Measure the voltage between the MAP sensor
connector terminal A and ground.
Does the voltage measure within the value
specified?
4.5–5.0V
Go to Step 7
Go to Step 8
7
1. Turn the ignition switch to LOCK.
2. Check for open wires between the MAP sensor
connector terminal A and the ECM connector
terminal 78.
Is the problem found?
–
Go to Step 10 Go to Step 12
8
1. Turn the ignition switch to LOCK.
2. Check for an open or short to ground in the wire
between the MAP sensor connector terminal C
and the ECM connector terminal 12.
Is the problem found ?
–
Go to Step 10 Go to Step 12
9
1. Turn the ignition switch to LOCK.
2. Check for an open or short to ground in the wire
between the MAP sensor connector terminal B
and the ECM connector terminal 73.
Is the problem found ?
–
Go to Step 10 Go to Step 12
DAEWOO M-150 BL2
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