Dtc P0112 Intake Air Temperature (Iat) Sensor Low Voltage - Daewoo CIELO EURO III Manual

DTC P0112 Intake Air Temperature (IAT) Sensor Low Voltage

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Step
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Perform an On-Board Diagnostic (EOBD) System
Check.
1
Is the system check complete?
1. Turn the ignition ON, with the engine OFF.
2. Install a scan tool
2
Is the Intake Air Temperature (IAT) value greater
than the specified value?
1. Turn the ignition switch ON with the engine OFF,
review Freeze Frame data, and note the
parameters.
2. Operate the vehicle within the Freeze Frame
3
conditions and Conditions for Setting The DTC as
noted.
Is the IAT sensor value greater than the specified
value?
1. Turn the ignition switch OFF.
2. Disconnect the IAT sensor electrical connector.
4
3. Turn the ignition switch ON.
Is the IAT sensor value below the specified value?
1. Turn the ignition switch OFF.
5 2. Replace the IAT sensor.
Is the action complete?
1. Turn the ignition switch OFF.
2. Disconnect the Engine Control Module (ECM)
connector.
6
3. With a test light connected to B+, probe the IAT
sensor signal circuit, terminal 2 at the IAT sensor
electrical connector.
Does the test light illuminate?
Repair the short to ground in the IAT sensor signal
circuit as necessary.
7
Is the repair complete?
1. Turn the ignition switch OFF.
8 2. Replace the ECM.
Is the action complete?
1. Using the scan tool, clear the Diagnostic Trouble
Codes (DTCs).
2. Start the engine and idle at normal operating
temperature.
9
3. Operate the vehicle within the conditions for
setting this DTC as specified in the supporting
text.
Does the scan tool indicate that this diagnostic ran
and passed?
Check if any DTCs are set.
10
Are any DTCs displayed that have not been diag-
nosed?
DAEWOO T-154 BL2,3
Action
ENGINE CONTROLS 1F – 1 12
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Value(s) Yes
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–
Go to Step 2
128 C
(262 F) Go to Step 4
128 C
(262 F) Go to Step 4
-30 C
(-22 F) Go to Step 5
–
Go to Step 9
–
Go to Step 7
–
Go to Step 9
–
Go to Step 9
–
Go to Step 10
Go to applicable
–
DTC table
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No
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Go to
"On-Board
Diagnostic
System Check"
Go to Step 3
Go to
"Diagnostic
Aids"
Go to Step 6
–
Go to Step 8
–
–
Go to Step 2
System OK