Suzuki Liana RH413, Service Manual

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Engine General Information and Diagnosis: 1A-48
NOTE
When battery voltage is applied to “GRY/RED” wire, it is possible that MAP sensor is also faulty.
DTC P0110 (No. 18): Intake Air Temp. (IAT) Circuit Malfunction
S3RH0A1104018
Wiring Diagram
DTC Detecting Condition and Possible Cause
NOTE
• When DTC P0105 (No. 11), P0110 (No. 18), P0115 (No. 19) and P0120 (No. 13) are indicated together, it
is possible that “ORN” circuit is open.
• Before inspecting, be sure to check that ambient temperature is higher than –40
°
C (–40
°
F).
DTC Confirmation Procedure
1) Clear DTC, start engine and keep it at idle for 1 min.
2) Select “DTC” mode on scan tool and check DTC.
4 Check MAP sensor
1) Check MAP sensor referring to “Manifold Absolute
Pressure (MAP) Sensor Inspection in Section 1C”.
Is it in good condition?
“GRY/RED” wire
shorted to “ORN” wire,
“LT GRN/RED” wire
open, poor “C41-10”
connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. Replace MAP sensor.
Step Action Yes No
C41-10
C41-15
5V
ECM
LT GRN/BLK
ORN
1
C41 (31P) G04 (24P) G03 (17P)
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 31
5 6 1 2 3 4 5 6 7
11 12
9 10 11 13 12 14 15 16
16 17
1 2
7 8
13 14
3 4
9 10
15 17 18
8
19 20 21 22 23 24
I2RH0B110024-01
1. From other sensors
DTC detecting condition Possible cause
• Low intake air temperature (High voltage-High resistance)
or
• High intake air temperature (Low voltage-Low resistance).
• “LT GRN/BLK” circuit open or shorted to
power
• “ORN” circuit open
• IAT sensor malfunction
• ECM malfunction