Dtc P0327 Knock Sensor Circuit Fault - Daewoo CIELO EURO III Manual

Poor terminal-to-wire connection
Physical damage to the wiring harness
Test Description
Number(s) below refer to the step number(s) on the
Diagnostic Table.
1. The On-Board Diagnostic (EOBD) System Check
prompts the technician to complete some basic
checks and store the freeze frame and failure re-
cords data on the scan tool if applicable. This
creates an electronic copy of the data taken when
the malfunction occurred. The information is then
stored on the scan tool for later reference.
2. If the conditions for the test as described above are
met, a DTC P0327 will set.
Step
Perform an On-Board Diagnostic (EOBD) System
Check.
1
Is the system check complete?
1. Start the engine.
2. Install a scan tool.
3. Clear the Diagnostic Trouble Codes (DTCs).
2 4. Operate the vehicle within the Freeze Frame
conditions and Conditions for Setting The DTC as
noted.
Is DTC P0327 set?
1. Turn the ignition switch ON, with the engine OFF.
2. Review the Freeze Frame data and note the
parameters.
3. Operate the vehicle within the Freeze Frame
3
conditions and Conditions for Setting The DTC as
noted.
Is DTC P0327 set?
Listen to the engine while raising and lowering the
engine speed.
4
Is a knock or audible noise present?
Repair the mechanical engine problem or a loose
bracket or component.
5
Is the action complete?
1. Turn the ignition switch OFF.
2. Disconnect the
engine control module (ECM) connectors
at the ECM.
6
3. With a Digital Voltmeter (DVM) connected to
ground, measure the resistance of the knock
sensor through the knock sensor signal circuit,
terminal M18.
Is the measured value within the specified value?
DAEWOO T-154 BL2,3

DTC P0327 Knock Sensor Circuit Fault

Action
ENGINE CONTROLS 1F – 251
4. If the engine has an internal knock or audible noise
that causes a knocking type noise on the engine
block, the KS may be responding to the noise.
6. Checking the internal resistance of the KS or the wir-
ing to the KS is OK.
7. Any circuitry, that is suspected as causing the com-
plaint, should be thoroughly checked for backed-out
terminals, improper mating, broken locks, improperly
formed or damaged terminals, poor terminal-to-wir-
ing connections or physical damage to the wiring
harness.
8. The replacement ECM must be repro-
grammed. Refer to the latest Techline procedure for
ECM reprogramming.
Value
–
Go to Step 2
–
Go to Step 4
–
Go to Step 4
–
Go to Step 5
–
Go to Step 12
Go to Step 7
4.6-4.8 M :
Yes No
Go to
"On-Board
Diagnostic
System Check"
Go to Step 3
Go to Step 12
Go to Step 6
–
Go to Step 9