Dtc P0112 Intake Air Temperature Sensor Low Voltage - Daewoo MATIZ Service Manual

DTC P0112 – Intake Air Temperature Sensor Low Voltage
Step
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
1
Is the system check complete?
1. Connect the scan tool to the data link
connector(DLC).
2. Run the engine until it reaches operating
2
temperature.
Does the scan tool show the IAT sensor reading
within the value specified?
1. Turn the ignition switch to LOCK.
2. Disconnect the IAT sensor connector.
3
3. Turn the ignition switch to ON.
Does the scan tool show the IAT sensor reading
within the value specified?
Check for a faulty connector or terminals at the IAT
sensor connector.
4
Is the problem found?
Check for wire for a short to ground between the IAT
connector terminal 1 and the ECM connector
5
terminal 79.
Is the problem found?
Check for wire for a short to ECM reference voltage
between the IAT sensor connector terminal 2 and
6
the ECM connector terminal 47.
Is the problem found?
1. Turn the ignition switch to LOCK.
2. Repair the wire or the connector terminal as
needed.
3. Clear any DTCs from the ECM.
7
4. Run the engine until it reaches operating
temperature.
5. Perform the diagnostic system check.
Is the repair complete?
1. Turn the ignition switch to LOCK.
2. Replace the IAT sensor.
3. Clear any DTCs from the ECM.
8
4. Run the engine until it reaches operating
temperature.
5. Perform the diagnostic system check.
Is the repair complete?
1. Turn the ignition switch to LOCK.
2. Replace the engine control module(ECM).
3. Run the engine until it reaches operating
9
temperature.
4. Perform the diagnostic system check.
Is the repair complete?
Check if any additional DTCs are set.
10
Are any DTCs displaced that have not been
diagnosed?
DAEWOO M-150 BL2
Action
ENGINE CONTROLS 1F – 67
Value(s) Yes
–
Go to Step 2
Go to
"Diagnostic
15–80°C Aids"
≤ -30°C
Go to Step 4
–
Go to Step 7
–
Go to Step 7
4.5–5.0V Go to Step 7
–
System OK
–
System OK
–
Go to Step 10
Go to
applicable DTC
–
table
No
Go to
"On-Board
Diagnostic
System Check"
Go to Step 3
Go to Step 5
Go to Step 6
Go to Step 6
Go to Step 9
–
–
–
System OK