Daewoo MATIZ Service Manual page 376

1F – 278 ENGINE CONTROLS
DIAGNOSTIC TROUBLE CODE (DTC) – P1661 MALFUNCTION INDICATOR
Circuit Description
When the ignition switch to ON, the Malfunction Indica-
tor Lamp (MIL) is ON steady.
When the engine cranking, the Malfunction Indicator
Lamp (MIL) is OFF after one flashing time.
If a system have some difficulties, the Malfunction Indi-
cator Lamp (MIL) is ON.
Conditions for Setting the DTC
D The Malfunction Indicator Lamp (MIL) wiring harness
low voltage.
Action Taken When the DTC Sets
D The Malfunction Indicator Lamp (MIL) will illuminate.
D 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.
D A history DTC is stored.
Conditions for Clearing the MIL/DTC
D The MIL will turn off after four consecutive ignition
cycles in which the diagnostic runs without a fault.
LAMP (MIL) LOW VOLTAGE
D A history DTC will clear after 40 consecutive warm-up
D DTC(s) can be cleared by using the scan tool.
Diagnostic Aids
An Intermittent problem may be caused by a poor con-
nection, rubbed through wire insulation, or wire that is
broken inside the insulation.
Any circuitry, that is suspected as causing the com-
plaint, should be thoroughly checked for the following
conditions.
D Backed-out terminals
D Improper mating
D Broken locks
D Improperly formed
D Damaged terminals
D Poor terminals to wire connection
D Physical damage to the wiring harness
cycles without a fault.
MAA1F030
DAEWOO M-150 BL2